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SWITCHING LAB MANUAL

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CONTENTS:
1. Networking Components
1.1 Hub
1.2 Switch
1.3 Router
2. Hierarchical Model
3. Switched Network Model
3.1
3.2
3.3
3.4

Access Layer Switches
Distribution Layer Switches
Core Layer Switches
Summary

4. Switch Device Features
5. Switch Operating Systems
6. Command Line Interface (CLI)
7. Switch IOS (Cisco) Fundamental Exercises
7.1 Lab Exercise 1 : Introduction to Switch
7.2 Lab Exercise 2 : Banner MOTD : Setting Message of the Day
7.3 Lab Exercise 3 : Setting Host Name
7.4 Lab Exercise 4 : Switch 2950 Console Password Assignment
7.5 Lab Exercise 5 : Switch 2950 VTY Password Assignment
7.6 Lab Exercise 6 : Switch 2950 – Setting Privileged password
7.7 Lab Exercise 7 : Enable Fast Ethernet Interface on a 2950 Switch
7.8 Lab Exercise 8 : Copy Running Configuration to Startup Configuration
7.9 Lab Exercise 9 : Setting Port Speed and Mode on a Switch
7.10 Lab Exercise 10 : Initial Switch Configuration
7.11 Lab Exercise 11 : Basic Switch Interface Configuration
7.12 Lab Exercise 12 : Configuring Port-Security on a Switchport
7.13 Lab Exercise 13 : Catalyst 2950 Switch Configuration
7.14 Objective Test 1

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8. Basic Exercises
8.1 Lab exercises using Cisco switches
8.1.1
8.1.2
8.1.3
8.1.4

Lab Exercise 1 : Entering User EXEC prompt on a Switch, and exit
Lab Exercise 2 : Introduction to Basic User Interface
Lab Exercise 3 : Basic show commands
Short form commands

8.2 Lab exercises using Juniper switches
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8

Lab Exercise 1 : Entering configuration mode on a switch and exit
Lab Exercise 2 : Setting Host name
Lab Exercise 3 : Set interface description
Lab Exercise 4 : Shutdown an interface
Lab Exercise 5 : Basic CLI commands
Lab Exercise 6 : Configure bandwidth on an interface
Lab Exercise 7 : Configuring ether-options on the gigabit ethernet switch interface
Lab Exercise 8 : Configuring the management IP address on EX series switch

8.3 Objective Test 2
9. Exercises on Switch Configuration and VLAN
9.1 Notes on VLAN and VTP
9.2 Lab exercises using Cisco switches
9.2.1 Lab Exercise 1 : Basic Switch IP Configuration
9.2.2 Lab Exercise 2 : Configuring 2950 Switch vlan
9.2.3 Lab Exercise 3 : Troubleshooting 2950 Switch
9.2.4 Lab Exercise 4 : 2950 Trunking Configuration
9.2.5 Lab Exercise 5 : Creating and Deleting 2950 VLAN's
9.2.6 Lab Exercise 6 : Configuring VTP on 2950 Switch
9.2.7 Lab Exercise 7 : Configuring VTP with a VTP Client
9.2.8 Lab Exercise 8 : Troubleshooting lab with non matching domains
9.2.9 Lab Exercise 9 : Troubleshooting lab with trunk functionality
9.2.10 Lab Exercise 10 : VLANs
9.2.11 Lab Exercise 11 : VTP
9.2.12 Lab Exercise 12 : VLANs and Trunking
9.2.13 Lab Exercise 13 : Routing between VLANs
9.2.14 Lab Exercise 14 : Connectivity Testing with Ping and Traceroute
9.3 Lab exercises using Juniper switches
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5

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Lab Exercise 1 : Define VLANs
Lab Exercise 2 : Configure a port for membership in that VLAN
Lab Exercise 3 : Configuring an interface as a trunk port
Lab Exercise 4 : Configuring VLANs on EX series switch
Lab Exercise 5 : Configuring Routed VLAN interface (Inter-VLAN routing) on a switch

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9.4 Objective Test 3
10. Exercises on Spanning Tree Protocol
10.1 Notes on Spanning-tree protocol
10.2 Lab exercises using Cisco switches
10.2.1
10.2.2
10.2.3
10.2.4
10.2.5
10.2.6

Lab Exercise 1 : Enabling STP
Lab Exercise 2 : Configuring Root Switch
Lab Exercise 3 : Configuring Port-Priority
Lab Exercise 4 : Configuring Switch Priority of a VLAN
Lab Exercise 5 : Configuring STP Timers
Lab Exercise 6 : Verifying STP

10.3 Lab exercises using Juniper switches
10.3.1
10.3.2
10.3.3
10.3.4

Lab Exercise 1 : Configuring STP Timers
Lab Exercise 2 : Setting bridge priority on switch
Lab Exercise 3 : Configuring port priority
Lab Exercise 4 : Verifying STP

10.4 Objective Test 4
11. Exercises on Per-VLAN Spanning Tree Protocol and VSTP
11.1 Lab exercises using Cisco switches
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.1.6

Notes on Per-VLAN Spanning Tree Protocol
Lab Exercise 1 : Enabling and disabling Uplinkfast feature on a switch
Lab Exercise 2 : Enabling and disabling Backbonefast feature on a switch
Lab Exercise 3 : Enabling and disabling Portfast feature on a switch
Lab Exercise 4 : Enabling PVST+ on a switch
Lab Exercise 5 : Implementing Per-VLAN Spanning tree on a switch network

11.2 Lab exercises using Juniper switches
11.2.1 Lab Ecercise 1: Enabling VSTP in all VLANs
11.2.2 Lab Exercise 2 : Enabling VSTP on a VLAN using a single VLAN-ID/VLAN-Name
11.3 Objective Test 5
12. Lab Exercises on PoE (using Juniper switches)
12.1
12.2
12.3
12.4

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Lab Exercise 1 : Configuring guard-band and maximum power on PoE enabled interface.
Lab Exercise 2 : Configuring power management on PoE enabled interface
Lab Exercise 3: Disabling a PoE interface
Lab Exercise 4 : Setting power priority on all PoE enabled interfaces

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5 14.1 14. Icons used in the Manual Version 2. Final Exam 14.3 14.com 4 .2 14.0 Copyright © 2002 – 2016 CertExams. Appendix 14.6 Answer key for Objective Test 1 Answer key for Objective Test 2 Answer key for Objective Test 3 Answer key for Objective Test 4 Answer key for Objective Test 5 Answer key for Final Exam 15.4 14.13.

For example. traffic generated in VLAN1 can only be forwarded into devices connected to VLAN1. The model defines the following three layers that has specific functions and responsibilities associated with it: i. 1. 2. Its job is very simple: anything that comes in one port is sent out to all other ports on the hub.2 Switch A switch learns the physical addresses of sending devices by reading the MAC address and mapping it to the port number through which the frame had arrived. All devices connected to a hub will be in the same collision domain as well as broadcast domain. They work at layer-3 of the OSI model. and other devices to communicate. A hub or a switch is used to connect two or more network segments.com 5 . finds out which interface it needs to go to reach desired destination (which may be several hops away) and routes the packet appropriately. Every computer connected to the hub "sees" the same information on the network that every other computer on the hub sees. The Distribution Layer determines how packets access the core layer. Distribution Layer : is the communication mechanism between access layer and core layer of the hierarchical model. They route packets based on the IP addresses where as a switch forwards packets based on the MAC addresses.1 Hub A hub is typically the simplest device to use. it will quickly learn which MAC address belongs to which switch port. Hierarchical Model The hierarchical model simplifies the task of building a reliable and scalable hierarchical inter network. Access Layer : controls user access to network resources. ii. 1. Layer 3 devices such as routers ensure that local server traffic does not move to the wider network and this layer is responsible for Layer 2 services. it will send a frame only to the port that connects to the destination device (as specified in the frame). NETWORKING COMPONENTS Hubs. printers. VLANS do not allow broadcasts to propagate to other VLANs on the switch network. 1. and determine access over the campus backbone by filtering out resource updates which are not needed. and stores the information in a table (called MAC table). VLANs may be used to divide the switch in to two or more broadcast domains.1. This way.3 Router A router is used to route packets. A router needs to disseminate an incoming packet down to its IP address and route it to destination based on information available in its routing table. Broadcast domain Version 2. This layer is responsible for routing traffic between VLANs. switches and routers are the most frequently used network devices which lets you connect computers. such as VLAN membership. traffic filtering based on broadcast or MAC addresses. A router reads the destination IP address of the incoming packet. and most complicated among the three. provides filtering and routing. Then onwards.0 Copyright © 2002 – 2016 CertExams.

Catalyst 4000 Series switch Juniper Access Layer Switches 1.1 Access Layer Switches Access layer switches operate at layer 2 of the OSI model and these switches are used to provide connectivity between desktop devices and the inter-network. supports 100/1000Mbps Ethernet switching. iii. EX2200: Juniper Networks EX2200 Ethernet switches provide connectivity for low-density environments. Cisco Access Layer Switches The following Cisco catalyst switches come under the access layer • 1900/2800. and provides access for over 250 users. • 5000/5500.com 6 . provides 10/100Mbps switched access to a maximum of 50 users. Core Layer : The primary function of a Core Layer is to switch traffic as fast as possible and provide connectivity between switch blocks. • 4000. and gigabit speeds for servers. Inter-VLAN routing. and security.0 Copyright © 2002 – 2016 CertExams. provides switched 10Mbps to the desktop/10BaseT hubs in small/medium campus networks. provides a 10/100/1000Mbps access to a maximum of 96 users and a maximum of 36 Gigabit Ethernet ports for servers. 3. WAN blocks and / or any other blocks that may be present. Version 2. Switched Network Model 3.definition. • 2900.

(The EX2500 switch contains 24 10-gigabit Small Form-Factor Pluggable Plus (SFP+) ports and 2 1-gigabit management ports.EX2200 switches are available in models with either 24 or 48 built-in network ports and four up link ports. PoE ports provide electrical current to devices through the network cables so that separate power cords for devices such as IP phones.2 Distribution Layer Switches Switches in this layer operate at layer 2 and layer 3. These switches must be capable of processing traffic from the Access layer devices. Model Number Access Ports PoE Enabled Ports EX2200-24T-4G 24 Gigabit Ethernet - EX2200-24P-4G 24 Gigabit Ethernet All 24 ports EX2200-48T-4G 48 Gigabit Ethernet - EX2200-48P-4G 48 Gigabit Ethernet All 48 ports 2. deal with a route processor. wireless access points. low latency and high availability are key requirements. These switches run under JUNOS OS for EX Series switches. All models provide network ports that have 10/100/1000Base-T Gigabit Ethernet connectors and four uplink ports. This 1U switch is rack mountable in either the horizontal or vertical direction.com 7 . and provide multi-layer switching (MLS) support.0 Copyright © 2002 – 2016 CertExams. These ports accept approved optical SFP+ transceivers or direct access cables (DACs). and 1 console port. The 10-gigabit SFP+ ports can accept 10-gigabit optical transceivers or Direct Attach Cables (DACs). EX2500: The EX2500 line of Ethernet switches delivers a compact. and security cameras are unnecessary. and provide multi-layer switching (MLS) Version 2. 2 management ports. with Power over Ethernet (PoE) either available in all built-in network ports or not available in any built-in network port. Each EX2200 switch has four uplink ports that support 1-gigabit small form-factor pluggable (SFP) transceivers for use with fiber connections and copper connections. 3. Cisco Distribution Layer Switches Switches in this layer operate at layer 2 and layer 3.) Model Number Description EX2500-24F-FB 24-port Gigabit Ethernet/10-Gigabit Ethernet SFP EX2500-24F-BF 24-port Gigabit Ethernet/10-Gigabit Ethernet SFP Note: SFP+ Ports: 24 Small Form-Factor Pluggable (SFP+) ports are located on the front panel. energy efficient Ethernet solution for 10 gigabit Ethernet GbE top-of-rack data center access deployments where high performance. The EX2500 switch has 24 SFP+ ports. deal with a route processor. depending on your application. These switches must be capable of processing traffic from the Access layer devices.

• 6000. EX3200 switches with a DC power supply installed do not provide PoE. Version 2.0 Model Access Ports No of PoE enabled ports EX3200-24T 24 Gigabit Ethernet First 8 ports EX3200-48T 48 Gigabit Ethernet First 8 ports EX3200-24P 24 Gigabit Ethernet All 24 ports EX3200-48P 48 Gigabit Ethernet All 48 ports EX3200-24T-DC 24 Gigabit Ethernet - EX3200-48T-DC 48 Gigabit Ethernet - Copyright © 2002 – 2016 CertExams. supports a considerable number of connections and the Route Switch Module (RSM) processor module. 10-gigabit small form-factor pluggable (SFP+) transceivers. • 2926G. cost-effective solution for low-density branch and regional offices. or 10-gigabit small form-factor pluggable (XFP) transceivers for use with fiber connections. EX3200: The EX3200 line of Ethernet switches offers a simple.support. and 192 100FX FastEthernet connections and 130 Gigabit Ethernet ports. All models provide ports that have 10/100/1000Base-T Gigabit Ethernet connectors and optional 1-gigabit small form-factor pluggable (SFP) transceivers. a strong switch that utilizes an external router processor. provides 384 10/100 Ethernet connections.com 8 . The following Cisco catalyst switches come under the distribution layer • 5000/5500. EX3200 switches are available in models with either 24 or 48 ports and with either all ports equipped for Power over Ethernet (PoE) or only 8 ports equipped for PoE. 2926G Switch Juniper Distribution Layer Switches 1.

0 Copyright © 2002 – 2016 CertExams. EX4200 switches are available in models with 24 or 48 ports and with either all ports equipped for Power over Ethernet (PoE) or only 8 ports equipped for PoE. and high availability for the Core layer. EX4200: Juniper Networks EX4200 Ethernet Switches provide connectivity for medium. these series switches can provide gigabit port density.com 9 . Additionally. or 10-gigabit small form-factor pluggable (XFP) transceivers for use with fiber connections. Cisco Core Layer Switches The Cisco Catalyst switches for the Core layer are listed here 5000/5500.2. the 5500 is the ideal Core layer switch while the 5000 is the ideal Distribution layer switch. 6500. This model is typically used as a small distribution switch. 10-gigabit small form-factor pluggable (SFP+) transceivers.and highdensity environments and scalability for growing networks.3 Core Layer Switches These switches must be capable of switching traffic as fast as it can. Model Ports PoE enabled ports EX4200-24T 24 Gigabit Ethernet First 8 ports EX4200-48T 48 Gigabit Ethernet First 8 ports EX4200-24P 24 Gigabit Ethernet All 24 ports EX4200-48P 48 Gigabit Ethernet All 48 ports EX4200-24F 24 Gigabit Ethernet EX4200-24T-DC 24 Gigabit Ethernet EX4200-48T-DC 48 Gigabit Ethernet EX4200-24F-DC 24 Gigabit Ethernet 3. Version 2. a 24-port model provides 100Base-FX/1000Base-X SFP ports. multi-layer switching. The 5000 series switches utilize the identical modules and cards. All models provide ports that have 10/100/1000Base-T Gigabit Ethernet connectors and optional 1-gigabit small form-factor pluggable (SFP) transceivers.

8540 Switch 8500. The FB and BF in the model number indicate the direction of airflow of the chassis: FB—Front-to-back airflow Version 2. Model Access Port Configuration EX4500-40F-FB 40-port GbE/10GbE SFP/SFP+ EX4500-40F-BF 40-port GbE/10GbE SFP/SFP+ EX4500-40F-FB-C 40-port GbE/10GbE SFP/SFP+ EX4500-40F-BF-C 40-port GbE/10GbE SFP/SFP+ EX4500-40F-DC-C 40-port GbE/10GbE SFP/SFP+ EX4500-40F-VC1-FB 40-port GbE/10GbE SFP/SFP+ EX4500-40F-VC1-BF 40-port GbE/10GbE SFP/SFP+ EX4500-40F-VC1-DC 40-port GbE/10GbE SFP/SFP+ Note: 1. Internet Protocol (IP).0 Copyright © 2002 – 2016 CertExams. This includes bridging. Juniper Core Layer Switches 1. Application-Specific Integrated Circuits (ASICs) is used to provide multiple-layer protocol support. provides high performance switching for the Core layer. Typically. IP multicast. Asynchronous Transfer Mode (ATM) switching. and Quality of Service (QoS). EX4500 switches are used in data centers where they can be positioned as the top device in a rack to provide connectivity for all devices in the rack. EX4500: EX4500 switches provide connectivity for high-density 10-Gigabit Ethernet data center topof-rack and aggregation deployments.com 10 .

Gigabit and 10 Gigabit Ethernet (GbE) deployments. The DC in the model number indicates that the switch model supports DC power supply. 4. global data centers. 10 Gbps 3. campus aggregations and core networks. 2. the EX8200-48F-ES and the EX8200-8XS-ES—which are optimized for large-scale deployments such as large campuses. EX8200: The EX8200 line of modular Ethernet switches is a family of high-performance. highly available platforms for use in high-density 10GbE data centers. the EX8200-8XS and the EX8200-40XS. The VC in the model number indicates that the switch model can be used in a Virtual Chassis configuration.com 11 . The C in the model number indicates the Converged Enhanced Ethernet (CEE) status of switch: C—CEE capable None—Not CEE capable 3. Four versions of the EX8200 Ethernet line cards are available. the EX8200-48F. Ethernet Line Card Specifications EX8 EX8200-48F / EX8200-8XS /EX8200-48FES /EX8200-8XSES EX8200-40XS EX8200-48PL EX8200-2XS-4OP /EX8200-48TL /EX8200-2XS-4OT 40 RJ-45 / 4 SFP /2 SFP+ Port quantity and type 48 RJ45 48 SFP 8 SFP+ 40 SFP/SFP+ 48 RJ-45 PoE/PoE+ ports 0 0 0 0 48/12 (48PL only) 40/12 (40P only) Port speed 10/1 100/1000 Mbps 10 Gbps 1 Gbps/10 Gbps 10/100/1000 Mbps 10/100/1000 Mbps. Version 2. QFX3500: The Juniper Networks QFX3500 Switch is a high-speed.0 Copyright © 2002 – 2016 CertExams. 100/1000 Mbps. multipurpose switch especially designed for next-generation data centers that provides a total switching capacity and throughput of 640 Gbps. each of which supports a consistent set of features and capabilities: the EX8200-48T. Three of these cards are available in Extra Scale (ES) configurations—the EX8200-48T-ES. or cloud-based applications. Juniper Networks EX8200 Ethernet line cards offer a variety of interfaces for supporting highdensity 100 Mbps.BF—Back-to-front airflow 2.

com 12 . as well as SFP+ direct attach copper cables. • Up to 48 of the access ports can be used for SFP+ transceivers or SFP+ direct attach copper cables.48 10-Gbps access ports in the switch use small form-factor pluggable plus transceivers (SFP+) and operate by default as 10-Gigabit Ethernet interfaces. Gigabit Ethernet SFP transceivers can be used in ports 6 – 41. also known as Twinax cables. • Up to 36 of the access ports can be used for SFP transceivers. 4-Gbps. QSFP+ Uplink Ports The QFX3500 switch has four uplink ports (Q0-Q3) that support up to four 40-Gbps quad small formfactor pluggable plus (QSFP+) transceivers. you can choose to configure up to 12 of the ports as 2-Gbps. 2-Gbps. small form-factor pluggable plus (QSFP+) transceivers. 4-Gbps. 4 40-Gbps uplink ports in the switch use quad. 10-Gigabit Ethernet SFP+ transceivers and SFP+ direct attach copper cables can be used in any access port. Optionally. or 8-Gbps Fibre Channel SFP+ transceivers can be used in ports 0 through 5 and ports 42 through 47. Version 2. and up to 36 of the ports as 1-Gigabit Ethernet interfaces. or 8-Gbps Fibre Channel (FC) interfaces. SFP+ Access Ports The QFX3500 switch has 48 access ports (0-47) that support small form-factor pluggable plus (SFP+) and small form-factor pluggable (SFP) transceivers.0 Copyright © 2002 – 2016 CertExams.

Cisco Catalyst 6500 Series Switches 2. Cisco Core/Distribution Layer Switches 1. Cisco Catalyst 2940 Series Switches 15.0 Copyright © 2002 – 2016 CertExams. Cisco Catalyst 2960-S Series Switches 11. Cisco Catalyst 2960 Series Switches 12. Cisco Nexus 7000 Series Switches 3. Cisco Catalyst 3560-E Series Switch 3. Cisco Catalyst 3750-E Series Switches 4. Cisco Catalyst 2950 Series Switches 14. For example: A distribution layer switch can be used in core layer and viceverse if it meets the customer’s networking requirement Version 2. Cisco Catalyst 2975 Series Switches 10. Cisco Catalyst 2350 Series Switches 2. Juniper Access Layer Switches 1. Cisco Access Layer Switches 1.EX3200 2. Cisco Catalyst 4500 E Series Switches 2. However the devices in core.com 13 . Cisco Catalyst 3560-X Series Switches 8.QFX3500 Note: Access.EX4500 2. Cisco Catalyst 3750 Series Switches 3. Cisco Catalyst 2955 Series Switches 13. Cisco Catalyst 3560 Series Switches 6. EX2500 4. Cisco Catalyst 3750-X Series Switches 5.EX8200 3.EX4200 5. Cisco Catalyst 4500E Series Switches 4. Cisco Catalyst 3550 Series Switches 9.4 Summary 1. distribution and access layer may be used inter changeably as per requirement. Cisco Catalyst 3560-E Series Switches 7. Distribution and Core layers are defined for convenience in design and implementation of computer networks.3. Juniper Core Layer Switches 1. EX2200 2. Juniper Distribution Layer Switches 1.

com 14 . Switch Device Features Cisco Switch Device Features Cisco 2950 switch (CISCO CATALYST 2950 24 PORT SWITCH WS-C2950-24 10/100) 1.0 Copyright © 2002 – 2016 CertExams. Please note that the 2950 series switches come in different flavors and vary greatly in the number and type of ports available. Front Panel: The switch front panel consists of 24 RJ-45 port connectors that support 10/100 Mbps speed and LED indicators as shown in the figures below.4. Fig 1 Fig 2 Version 2.

LEDs and the Mode button. such as workstations and hubs. or 100 Mbps. hubs. hubs. 10/100/1000 Ports The 10/100/1000 ports on Catalyst 2950T-24 switches use RJ-45 connectors and twisted-pair cabling. 100BASE-FX Ports The 100BASE-FX Ports use 50/125. routers. such as high-speed workstations. such as high-speed workstations. servers. full duplex. hubs. You can connect a 100BASE-FX port to an SC or ST port on a target device by using one of the MT-RJ fiber-optic patch cables 3.5/125-micron multimode fiber-optic cabling. and other switches. routers. 10 Mbps. The 10/100 ports can be explicitly set to operate in any combination of half duplex. and other switches. Changing the port mode changes the information provided by each port status LED. such as workstations and hubs or 100BASE-TX-compatible devices. These ports only operate at 100 Mbps in full-duplex mode. The ports can connect to10BASE-T-compatible devices. servers. Refer Fig 2 above for reference Version 2. 10/100 Ports These use RJ-45 Connectors and twisted-pair cabling and they can be connected to 10BASE-Tcompatible devices. PORTS: 1. such as high-speed workstations.or 62. and other switches or 1000BASE-T-compatible devices.0 Copyright © 2002 – 2016 CertExams. routers. or 100BASE-TX-compatible devices. 2. LED INDICATORS: LEDs (Light Emitting Diodes) can be used to monitor switch activity and performance. servers.com 15 .Fig 3 Explanation: The switch front panel contains Ports.

LED Mode Port Mode STAT Port status This is the default mode. or 1000 Mbps for 10/100/1000 ports Version 2. 100. SPEED Port speed Port operating speed: 10 or 100 Mbps for 10/100 ports and 10. System LED : Specifies whether the system is receiving power and is functioning correctly. Color Status Off Indicates that the system is not powered on Green Indicates that the system is operating normally Amber System is receiving power but not functioning properly 2. and the RPS is providing power to the switch 3. Port mode LED: Indicates the current state of the mode button. DUPLX Port duplex mode Half duplex or Full duplex.0 Description Copyright © 2002 – 2016 CertExams.com 16 . Flashing amber The internal power supply in a switch has failed. UTIL Switch utilization The bandwidth in use by the switch. Flashing green RPS is connected but is unavailable because it is providing power to another device Solid amber RPS is in standby mode or in a fault condition. RPS (Remote Power Supply) LED: Specifies whether or not the remote power supply is in use. Color Status Off RPS is off or is not installed. Solid green RPS is connected and ready to provide back-up power.1.

and monitor switch clusters. * For LRE Switches Port mode Color Meaning STAT Off No link Solid Green Link Present Flashing Green Activity. Off Port operating in half duplex Green Port operating in full duplex DUPLX SPEED 10/100/1000 ports and SFP Modules Off Port operating at 10 Mbps Green Port operating at 100 Mbps Flashing Green Port operating at 1000 Mbps 2. Management Options Catalyst 2950 switches offer these management options: Cluster Management Suite (CMS) CMS is made up of three web-based applications that you use to manage switches. configure. can be a standalone application or part of an Simple Network Management Protocol (SNMP) networkmanagement platform. which includes Cluster View. which you purchase separately. IOS command-line interface (CLI) You can manage switches by using command-line entries.com 17 . To access the CLI. and Cluster Manager to create. Version 2. or a port is not forwarding. you can use a Telnet connection to manage the switch from a remote location. CiscoView application You can use the CiscoView device-management application to set configuration parameters and to view switch status and performance information.4. If the switch is attached to your network. Port status LED: Indicates different meanings depending on the current value of the Mode LED. You can also use Device Manager to manage individual and standalone switches. connect a PC or terminal directly to the console port on the switch rear panel. This application. port is sending/receiving data. Alternating Green-Amber Link fault Solid Amber A link is established on a nonassigned LRE profile.0 Copyright © 2002 – 2016 CertExams. You can use Cluster Builder.

· 10BaseT ports The 10BaseT network ports use standard RJ-45 connectors. and the 1924 with 24 10BaseT switched ports and two Fast Ethernet switched ports. the IEEE 802. The switch supports a comprehensive set of MIB extensions and MIB II. refer to the documentation that came with your SNMP application. · Switched 100-Mbps Ports The switches can have any of the following high-speed ports (depends on model): Version 2.You can manage switches by using an SNMP-compatible management station running platforms such as HP OpenView and SunNet Manager. with 12 10BaseT switched ports and two Fast Ethernet switched ports. Using this type of cabling. the 1912. For more information. Cisco 1912 – 12 port switch The Cisco Catalyst 1900 series of switches offer an economical option for Ethernet networks. or 5 cabling.1D bridge MIB. such as individual workstations and hubs. Cisco has created a Command-Line Interface (CLI) for the 1900 series of switches. There are two Catalyst 1900 switches. the distance between the switch and the attached device can be up to 100 meters.0 • Two switched 100BaseTX ports • One switched 100BaseTX port and one switched 100BaseFX port • Two switched 100-Mbps fiber-optic ports Copyright © 2002 – 2016 CertExams. 4.com 18 . The figure above shows a 24-port 1900 switch with 2 Fast Ethernet ports. The Cisco Catalyst 1900 switch is useful for small workgroups needing switched 10-Mbps ports. These ports can connect to 10BaseTcompatible devices. with Category 3. and four RMON groups.

The collision window is 64 bytes long. with Power over Ethernet (PoE) not available in EX2200-24T and EX2200-48T 24 or 48 10/100/1000Base-T Gigabit Ethernet ports.3.com 19 . the switch waits for the collision window before forwarding the entire frame. 2. with Power over Ethernet (PoE) available in EX2200-24P and EX2200-48P (a) 4 built-in SFP uplink ports (b) 2 chassis status LEDs (c) 4 port status mode LEDs (d) Mode button Version 2. The latency is very less because. It immediately looks up the switching table and starts forwarding the frame. the frame is forwarded as soon as the destination address is resolved. if found. 3. Juniper Switch Device Features 1. Rear-Panel Description The rear panel of a Catalyst 1900 switch consists of the following: 1. either of: • • 24 or 48 10/100/1000Base-T Gigabit Ethernet ports. Giant (more than 1518 bytes0 and Runt (less than 64 bytes) frames are also dropped. Cut-Through (Real-Time) switching: Here. EX2200 Front Panel The front panel of an EX2200 switch consists of the following components: (a) Network ports—depending on the switch model. Store-and-Forward switching: Here the LAN switch copies the entire frame into its buffers and computes the CRC. Fragment-Free switching: Here. Redundant power system (RPS) connector and 4. A switched AUI port 4. the LAN switch copies only the destination address into its buffers. Switching methods 1. Console port 3. AC power connector 2. The frame is discarded if there are any CRC errors.0 Copyright © 2002 – 2016 CertExams.

2. Chassis LEDs The front panel of an EX2200 switch has two chassis status LEDs labeled SYS and ALM on the far right side of the panel. above the uplink ports.com 20 .0 Copyright © 2002 – 2016 CertExams. LED Label Color State and Decription ALM Unlit There is no alarm Amber There is a minor alarm Red There is a major alarm Green On steadily : The switch is functioning normally SYS Blinking : The switch is booting Off : The switch is off Version 2.

EX2200 Rear Panel The rear panel of the EX2200 switch consists of the following components: • Management Ethernet port • USB port • Console port • Protective earthing terminal • ESD point • Air exhaust • Serial number ID label • AC power cord inlet Version 2.com 21 .3.0 Copyright © 2002 – 2016 CertExams.

Ex: set port disable set port duplex set port speed set spantree portfast set trunk 2. not to be confused with other vendor hardware). thus delivering the same scalability and security across several hardware platforms. With real-time inventory discovery capabilities. Cisco IOS (originally Internetwork Operating System) is the software used on the vast majority of Cisco Systems routers and current Cisco network switches.0 Copyright © 2002 – 2016 CertExams. 3550.com 22 . The Command Line Interface (CLI) on Catalyst 1900/2800 and Catalyst 2900 XL series switches are similar to Cisco IOS command set popularly used in Cisco routers. switching. The software is modular and standards based. The Cisco Catalyst Switch Manager is a graphical user interface (GUI)-based. Another important feature of JUNOS is that the software is platform independent (within Juniper hardware systems. Operating system for Juniper switches The operating system software that powers the Juniper routers is called JUNOS. 2970 and 2950 switches. Switch Operating Systems Operating system for Cisco switches 1. The IOS CLI provides a fixed set of multiple-word commands — the set available is determined by the "mode" and the privilege level of the current user. The equivalent IOS commands to the above given SET commands are Ex: shutdown duplex speed spanning-tree portfast switchport mode trunk 3. 4000 and 4500. internetworking and telecommunications functions tightly integrated with a multitasking operating system. All configurations in CatOS were done via Set command sequence.5. carrier-class element management system (EMS) for managing the Cisco Catalyst 6500 and 6000.) IOS is a package of routing. This Cisco EMS provides a range of GUI features designed to increase network operations productivity. this EMS ensures quicker deployment of Cisco networking equipment and provides comprehensive element service assurance to more quickly solve network problems. Version 2. (Earlier switches ran CatOS. CatOS (Catalyst OS) also known as Set based IOS is operating system that was used on some cisco switches earlier.

Command Line Interface (CLI) Cisco IOS Command Line Interface Cisco IOS has three command modes. All the commands that are available in user mode are also available in privileged mode. we enter the commands for 1. JUNOS Command Line Interface JUNOS CLI is a simple to use. if you want to configure an IP address on switch ethernet interface. configure. Controlling the CLI environment.6. Monitor and troubleshoot network connectivity. Privileged mode is identified by the # prompt following the host name. troubleshooting and monitoring the software. 1. To enter privileged mode. Configuration mode: This mode allows users to configure the switch. User mode: This is the mode a user has access to after logging into the switch. etc. show. The user has access to some basic commands in this mode. The difference between a password and secret password is that the secret password uses stronger encryption and not stored in as plain text. you can enter any sub-mode depending on the configuration task. Global configuration mode is identified by the (config)# prompt following the host name. The system cannot be configured or restarted from this mode. text-based command interface. you need to enter the password or secret password to enter the privileged mode. Initiating the Configuration Mode. one needs to type “enable” at the User mode prompt. Version 2. The user mode is identified by the > prompt following the host name. the user should enter the command “configure terminal” from privileged mode. we are at the top level of the CLI operational mode. traceroute. We give various commands on CLI for configuring. each with access to different command sets. Operational Mode: When we log in to the router and the CLI starts. By entering the command ? at any point shows the available commands at that level. Frequently used commands in this mode include ping. you need to enter (config-if)#sub mode. 3. To exit configuration mode. After entering global configuration mode.0 Copyright © 2002 – 2016 CertExams. Privileged mode: This is the mode where users can view the system configuration. The ? can also be used in the middle of a command to show possible completion options. and 3. 2. a) Operational Mode b) Configuration Mode 1.com 23 . the user can enter end or press Ctrl-Z. JUNOS primarily supports two types of command modes. and 2. and enter configuration mode from this mode. In this mode. For example. To enter into the configuration mode. If an enable password or enable secret password has been set.

The term "statement hierarchy" is used to define the sequence of commands used for configuring a particular feature (or features) of the router. Statement Hierarchy: We use the above configuration mode commands to create a statement hierarchy. Ofcourse. We enter the configuration mo9+de by using the command "configure" as shown below: user@host>configure Entering configuration mode [edit] user@host# Issuing the commands one at a time using CLI can configure a JUNOS™ router or alternately.0 Copyright © 2002 – 2016 CertExams. Ex: user@host#set hello-interval 14 Version 2. An example statement hierarchy is given below: user@host>configure Entering configuration mode [edit] ----Top level user@host#edit protocols ospf [edit protocols ospf] ----protocols ospf hierarchy level user@host# "set" commands are used to configure specific leaf statements.2. we can change the prompt by using appropriate command. Configuration Mode: We use the Configuration mode for configuring the JUNOS software by creating a hierarchy of configuration statements. As shown in the above example. we can configure by creating a text (ASCII) file that contains the statement hierarchy.com 24 . the generic configuration prompt is user@host#. and then configure the JUNOS software. Remember to activate the configuration by using the command "commit" on the router.

Show interfaces: Displays statistics and status information of all the interfaces on the switch.This command requires privileged EXEC mode access.1 : Lab Exercise 1 : Introduction to Switch Description: A basic exercise to get familiar with the different commands related to switch . Switch IOS Fundamental Exercises Note: Please refer to the below network diagram for the switch exercises given in the next section. and use the following commands.com 25 . Choose SW1 switch from the N/W diagram. The switch initial startup status can be verified using the below status commands: Show version: Displays the configuration of the system hardware and the currently loaded IOS software version information Show running-config: Displays the current active running configuration of the switch. 7.0 Copyright © 2002 – 2016 CertExams. Version 2.7.

Show version command displays the IOS version of the switch 3. Instructions: 1. Note that the banner is set in a single command line here. Show running-config displays the running configuration SW1>enable SW1#show version SW1#show interfaces SW1#show running-config Back 7. Enter into privileged mode 2. Set banner to: "Welcome to local host".Instructions: 1. Connect to switch and you should see the user mode prompt 2. Use show banner command to view the banner that has been set SW1>enable SW1#configure terminal SW1(config)#banner motd Z Welcome to local host Z SW1(config)#exit SW1#show banner Back 7.3 : Lab Exercise 3 : Setting Host Name Description: This basic exercise illustrates the steps required to set a hostname to a switch. Show interfaces command displays the interfaces of the switch 4. Set hostname as cisco SW1>enable SW1#configure terminal Version 2. Enter into global Configuration Mode 3. Enter into global Configuration Mode 3. Starting and ending character of the banner should be "Z" (Do not use quotes) 4.2 : Lab Exercise 2 : Banner MOTD-Setting message of the day Description: This exercise helps in understanding the procedure of setting message of the day and the show banner command . You can also use multi-line banner motd command.com 26 . Instructions: 1.0 Copyright © 2002 – 2016 CertExams. Enter into privileged mode 2.

4 : Lab Exercise 4 : Switch 2950 Console Password Assignment Not Available in Demo Version.7 : Lab Exercise 7 : Enable Fast Ethernet Interface on a 2950 switch Not Available in Demo Version.SW1(config)#hostname cisco Cisco(config)# Back 7. 7.8 : Lab Exercise 8 : Copy Running Configuration to Startup Configuration Not Available in Demo Version. 7. 7.0 Copyright © 2002 – 2016 CertExams. 7.com 27 .5 : Lab Exercise 5 : Switch 2950 VTY password assignment Not Available in Demo Version.11 : Lab Exercise 11 : Basic Switch Interface Configuration Not Available in Demo Version. 7. Version 2.10 : Lab Exercise 10 : Initial Switch configuration Not Available in Demo Version.6 : Lab Exercise 6 : Switch 2950: Setting Privileged Password Not Available in Demo Version. 7. 7.9 : Lab Exercise 9 : Setting Port Speed and Mode on a Switch Not Available in Demo Version.

1 Lab exercises using Cisco Switches 8. privileged mode.14 : Objective Test 1 : Answer the following Questions Not Available in Demo Version. CLI and basic commands. 7. type the command ? used to view all the commands in user mode 3.2 : Lab Exercise 2 : Introduction to Basic User Interface Description: This exercise helps to get familiar with the user mode. Instructions: 1. Basic Exercises 8. that shows how to enter into privileged EXEC prompt from user mode prompt. and exit from the same. Instructions: 1. In the user mode.0 Copyright © 2002 – 2016 CertExams.1.13 : Lab Exercise 13 : Catalyst 2950 Switch Configuration Not Available in Demo Version. Get back to the user mode SW1> SW1>enable SW1#disable SW1> Back 8. Enter into privileged mode 2.com 28 . 7.7.1 : Lab Exercise 1 : Entering User EXEC prompt on a Switch. and exit Description: A basic exercise.1. Press enter to get the switch prompt 2.12 : Lab Exercise 12 : Configuring Port-Security on a Switchport Not Available in Demo Version. Enter into privileged mode Version 2. 8.

Show flash.0 Copyright © 2002 – 2016 CertExams. Show running-config displays the active configuration in memory. ip. Show ip interface brief command displays information about each interface 6. The command show ? displays all the show commands like show banner. 3.com Back 29 .3 : Lab Exercise 3 : Basic show commands Description: A basic exercise to get familiar and understand the various show commands available in the privileged mode. Show history command displays all the past commands still present in switch memory 5. flash memory is a special kind of memory that contains the operating system image file(s) on the switch 4. Show vlan and show vtp status displays the vlan and vtp information respectively. vtp etc 6. type the command ? to view all the commands in privileged mode 5. The currently active configuration script running on the switch is referred to as the running-config in the switch’s CLI 8. vlan. macaddress-table. interfaces. Show mac-address-table command displays mac-address-table on the switch 7.1.4. The command “exit or disable” logs out the switch SW1> SW1>? SW1>enable SW1# SW1#? SW1#show ? SW1#show running-config SW1#exit Or SW1#disable Back 8. Enter into privileged mode 2. In the privileged mode.The command show running-config displays the running configuration 7. Show banner displays the banner configured on the switch. SW1> SW1>enable SW1#show banner SW1#show flash SW1#show history SW1#show ip interface brief SW1#show mac-address-table SW1#show running-config SW1#show vlan SW1#show vtp status Version 2. Press space bar to view more information 8. Instructions: 1.

2. Note: We can also use UP ARROW and DOWN ARROW keys to get the previously typed command in the simulator.1 : Lab Exercise 1 : Entering configuration mode on a switch and exit Description: A basic exercise that shows how to enter configuration mode and exit from Version 2.2 Lab exercises using Juniper switches Note: Please refer to the below network diagram for the switch exercises given in the next section.com 30 .1. show startup-config command can be interpreted and used in short form as “show start” command.0 Copyright © 2002 – 2016 CertExams. copy running-config startup-config command can be interpreted and used in short form as “copy run start” command. 2. Back 8.4 : Short form commands 1. 3.8. 8. show running-config command can be interpreted and used in short form as “show run” command.

Set hostname as “junipersw” user@SW1>configure [edit] user@SW1#edit system [edit system] user@SW1#set host-name junipersw [edit system] user@junipersw#exit [edit] user@junipersw#exit Back 8.3 : Lab Exercise 3 : Set interface description Description: In this exercise. description to an interface is set by using set description command.com 31 . Enter into configuration mode 2. Get back to the operational mode user@SW1>configure [edit] user@SW1#exit user@SW1> Back 8. Choose SW1 from the network diagram.2 : Lab Exercise 2 : Setting Hostname Description: Set the switch hostname as junipersw. Instructions: 1.2. Enter into configuration mode 2. Instructions 1. Choose SW1 from the network diagram and exit.0 Copyright © 2002 – 2016 CertExams.the same. Set the description of interface ge-0/0/0 as "interface-ge-0/0/0" user@SW1>configure [edit] user@SW1#edit interfaces ge-0/0/0 Version 2.2. Enter into configuration mode 2. Instructions 1.

8. 8.2.7 : Lab Exercise 7 : Configuring ether-options on the gigabit ethernet switch interface Not Available in Demo Version.3 Objective Test 2 : Answer the following Questions 1. You want to find the IOS version your switch is running.com 32 . 8.2.4 : Lab Exercise 4 : Shutdown an interface Not Available in Demo Version.2. 8. Which command shows this information? a) show protocol b) show interface c) show processes d) show version Version 2. 8.2.6 : Lab Exercise 6 : Configure bandwidth on an interface Not Available in Demo Version.2.[edit interfaces ge-0/0/0] user@SW1#set description "interface-ge-0/0/0" [edit interfaces ge-0/0/0] user@SW1#exit [edit] user@SW1# Back 8.5 : Lab Exercise 5 : Basic CLI commands Not Available in Demo Version.8 : Lab Exercise 8 : Configuring the management IP address on EX series switch Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams.

Which command would you type at the privileged mode prompt? a) quit b) exit c) disable d) end 4. VLANs are typically configured on switch ports. Users belonging to one VLAN will not receive frames mean for some other VLAN. 2. What is the command used for copying the configuration from NVRAM to a running RAM? a) copy startup running b) copy startup-config running-config c) copy running-config startup-config d) write memory Back Note: please refer to the Appendix for Objective test Answer key 9. b) Security is provided by isolating users corresponding to different VLANs. The following are the advantages of LAN segmentation using VLANs: a) Segmentation of broadcast domains using VLANs result in creation of more bandwidth per user. c) LAN segmentation using VLANs can be done based on job function rather than physical location. Which of the following can be used to view the previous command you entered into a Cisco switch? [Select 2] a) CTRL+F1 b) The Down Arrow c) The Up Arrow d) CTRL + P 3.2. You want to get back to user mode. Version 2. if required.com 33 . Separate VLANs for voice and data traffic improves the privacy and reliability of voice communication.0 Copyright © 2002 – 2016 CertExams. A switch identifies the VLAN associated with a given frame and forwards the frame to associated ports. note that a router is required to switch traffic between VLANs. VLANS 1. However.1 Notes on VLAN and VTP i. Exercises on Switch Configuration and VLAN 9. You are working in privileged mode (at # prompt).

VTP mode: Server 3.com 34 . and switches.1: 802. 802. VTP does not function properly unless you assign the same password to Version 2. VTP 1. VTP password: None 4. 3. Therefore. The VTP domain name can be specified manually or learned across a configured trunk line from a server with a domain name configured.300. By default. routers. VTP trap: Disabled 2. the domain name is not set. VTP domain name: None 2. There is no need to have as many physical ports on a router as that of VLANs.200. LANE: LAN Emulation (LANE) is the VLAN transport protocol used across an ATM trunked link. Inter-VLAN communication can occur only if the router is configured with appropriate subinterfaces.1 is the VLAN transport protocol used over FDDI trunked link. The default VTP configuration parameters for the Catalyst switch are as follows: 1. ii. In this case. and 400). The VLAN transport protocol are: ISL: ISL (Inter Switch Link) is the VLAN transport protocol used over Fast Ethernet trunked link. VTP pruning: Disabled 5. A roll-over cable is required for connecting a terminal to the Console port of a router/switch. VLAN Transport Protocol (VTP) information can be distributed throughout the network to all stations including servers. in addition to VLAN 1 (management VLAN). If you configure a VTP password.0 Copyright © 2002 – 2016 CertExams. there are 4 VLANs (VLANs 100.A single physical port on a router can support one or more VLANs by use of sub-interfaces. 5 sub-interfaces have to be configured on the router interface connecting the switch.

Similarly. Version 1 is the default version. or delete VLANs. If you enable this feature.each switch in the domain. Cisco switches such as Catalyst 1900. It carries configuration information throughout a single domain. VTP trap is disabled by default. Token Ring support: Supports Token Ring LAN switching and VLANs. 3. If Token Ring is used.com 35 . only one switch need to be Version 2 enabled. Version number auto propagation: In case that all switches are capable of running Version 2. whereas clients keep the information only in running configuration. 5. it causes an SNMP message to be generated every time a new VTP message is sent. VTP is a Layer 2 messaging protocol. configured as VTP clients. Some of the advantages of VTP version 2 are as below: 1. called VTP server. Version 2. we can observe that the domain name and the VTP version are different for both the switches. For successfully transferring VLAN information.0 Copyright © 2002 – 2016 CertExams. the version numbers must be same on both the switches. There are two different VTP versions. Configurations made to a single switch. 2. All switches in a given management domain should be configured in either version 1 or version 2. learn the configuration information from the server. change. VTP clients. Version number is automatically propagated to others. it increments the configuration revision number by one count. Other switches. acting as VTP servers save the VLAN configuration information in their Non volatile memory (NVRAM). From the output of show vtp status. the VTP domain name must also be same on both the switches. These versions are not interoperable. modify. are propagated across the switch fabric under a single domain control. A VTP advertisement necessarily consists of "Configuration revision number". Transparent switches don't work either as Server or clients. 6. 3) Transparent mode: A VTP transparent mode is used when a switch is not required to participate in VTP. Every time a VTP server updates its VLAN information. 2) Client mode: A VTP client can't create. VTP operates in one of three modes: 1) Server mode: VTP Servers can create. but only pass the information to other switches. this is the version required. 4. or delete VLANs and other configuration parameters for the specified VLAN domain. VTP version 1 and VTP version 2. use the revision number to enforce the VLAN configuration Update.

only if that switch has ports associated with that VLAN.16. a switch forwards the flooded traffic across a link to another switch.10 255. Exit switch configuration mode SW1>enable SW1#configure terminal SW1(config)#hostname 2950 2950(config)#interface vlan 1 2950(config-if)#ip address 172.16.0 5.0. Also any switch that has the same VTP domain name will join and exchange VTP information. Also.255. Back 9.16. and any switch that has no VTP domain name can join the VTP domain when trunking is enabled.2 2950(config)#end Back 9.1 : Lab Exercise 1 : Basic Switch IP Configuration Description: Configure hostname as 2950.16.1.255. To prevent this from occurring. subnet mask 255.0 Copyright © 2002 – 2016 CertExams. copy running configuration to startup Version 2.0 2950(config-if)#exit 2950(config)#ip default-gateway 172.7.255.16.255.1. Assign the hostname “2950” 4.1.10 255. Enter user Exec mode 2. These frames are not forwarded to network devices that don't have ports associated with a given VLAN.16. multicast. there are no passwords in VTP informational updates. and set the switch ip address to 172. and flooded unicast messages.2 Lab exercises using Cisco switches 9.2.2.255.10. Set ip default-gateway to 172. set the default-gateway to 172. 8.3 mask 255.1.1. Enter privileged Exec mode 3.2.2.2 : Lab Exercise 2 : Configuring 2950 Switch vlan Description: Configure vlan1 on 2950 switch.255.0.2 Instructions: 1. Assign default gateway route 172. This could enable an unwanted switch in your network to manage the VLAN database on each of the switches. VTP pruning is a technique that enhances the available network bandwidth by reducing the broadcast. set a VTP password on the switches you want to exchange information. Assign an ip address 172.16.255.2 6. and set the ip address to 192.16. By default.com 36 .255. When VTP pruning is enabled.1.2.

16.2.16.configuration.2.2.0 on VLAN1 4. 9. 9.255.2.0 SW1(config-if)#exit SW1(config)#ip default-gateway 172.3 mask 255. Enter global configuration mode 3. 9.5 : Lab Exercise 5 : Creating and Deleting 2950 VLAN's Not Available in Demo Version.2.2.2. 9. Instructions: 1.4 : Lab Exercise 4 : 2950 Trunking Configuration Not Available in Demo Version.255.0 Copyright © 2002 – 2016 CertExams.16. Set the default gateway to 172.16. Save the configuration to NVRAM SW1>enable SW1#configure terminal SW1(config)#interface vlan 1 SW1(config-if)#ip address 172.2.2.7 : Lab Exercise 7 : Configuring VTP with a VTP Client Not Available in Demo Version.com 37 .255.3 : Lab Exercise 3 : Troubleshooting 2950 Switch Not Available in Demo Version.2.2 SW1(config)#end SW1#copy running-config startup-config Back 9. Version 2.3 255.6 : Lab Exercise 6 : Configuring VTP on 2950 Switch Not Available in Demo Version. 9.255.2 5.8 : Lab Exercise 8 : Troubleshooting lab with non-matching domains Not Available in Demo Version. Assign IP address 172. Enter privileged exec mode 2.

0 Copyright © 2002 – 2016 CertExams.com 38 .9. 9. 9.2. Version 2.2.9 : Lab Exercise 9 : Troubleshooting lab with trunk functionality Not Available in Demo Version.12 : Lab Exercise 12 : VLANs and Trunking Not Available in Demo Version.2. 9.2.13 : Lab Exercise 13 : Routing between VLANs (Router on a Stick) Not Available in Demo Version.11 : Lab Exercise 11 : VTP (VLAN Trunking Protocol) Not Available in Demo Version.10 : Lab Exercise 10 : VLANs Not Available in Demo Version.2.14 : Lab Exercise 14 : Connectivity Testing with Ping and Traceroute Not Available in Demo Version. 9. 9.2.

9.3 Lab exercises using Juniper switches
Note: Please refer to the below network diagram for the switch exercises given in the next
sections.

9.3.1 : Lab Exercise 1 : DefineVLANs
Description: This exercise demonstrates the commands required to create VLANs on the
switch.
Instructions
1. Create VLAN 10 and 20 by using the command syntax “set vlans <vlan-name> vlan-id <vlanid-number>
2. Verify the same using show vlans command
user@SW1>configure
[edit]
user@SW1#set vlans marketing vlan-id 10
[edit]
user@SW1#set vlans support vlan-id 20
[edit]
user@SW1#commit
[edit]
user@SW1#exit
user@SW1>show vlans

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9.3.2 : Lab Exercise 2 : Configure a port for membership in that VLAN
Not Available in Demo Version.

9.3.3 : Lab Exercise 3 : Configuring an interface as a trunk port
Not Available in Demo Version.

9.3.4 : Lab Exercise 4 : Configuring VLANs on EX series switch
Not Available in Demo Version.
9.3.5 : Lab Exercise 5 : Configuring Routed VLAN interface (Inter-VLAN routing)
on a switch
Not Available in Demo Version.

9.4 Objective Test 3 : Answer the following Questions
Not Available in Demo Version.

10. Exercises on Spanning Tree Protocol and VSTP
10.1 Notes on Spanning-tree protocol
1. What is Spanning Tree Protocol and why is it required?
i. STP is a layer 2 protocol that runs on bridges and switches. The main function of STP is for
removing loops on a switch network. In Cisco Catalyst 5000 series switches, use BDPUs (Bridge
Protocol Data Units) to determine the spanning tree topology. STP uses a Tree Algorithm (STA)
to prevent loops, resulting in a stable network topology.
ii. Following are the possible solutions for preventing routing loops.
1. Split Horizon - based on the principle that it is not useful to send the information about a route
back in the direction from which the information originally came.
2. Poison Reverse - A router that discovers an inaccessible route sets a table entry consistent state
(infinite metric) while the network converges.
3. Hold-down Timers - Hold down timers prevent regular update messages from reinstating a route
that has gone bad. Here, if a route fails, the router waits a certain amount of time before accepting
any other routing information about that route.
4. Triggered Updates - Normally, new routing tables are sent to neighboring routers at regular
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intervals (IP RIP every 30 sec / and IPX RIP every 60 sec). A triggered update is an update sent
immediately in response to some change in the routing table. Triggered updates along with Holddown timers can be used effectively to counter routing loops.
iii. A switch, participating in Spanning-Tree protocol, passes through the following states:
1. Blocked state: This is the initial state. All ports are put in a blocked state to prevent bridging
loops.
2. Listen state: This is the second state of switch ports. Here all the ports are put in listen mode. The
port can listen to frames but can't send. The period of time that a switch takes to listen is set by "fwd
delay".
3. Learn state: Learn state comes after Listen state. The only difference is that the port can add
information that it has learned to its address table. The period of time that a switch takes to learn is
set by "fwd delay".
4. Forward state: A port can send and receive data in this state. Before placing a port in forwarding
state, Spanning-Tree Protocol ensures that there are no redundant paths or loops.
5. Disabled state: This is the state when the switch port is disabled. A switch port may be disabled
due to administrative reasons or due to switch specific problems.
2. How STP works
i. Root Bridge/Root Switch
The Root Bridge (Switch) is a special bridge at the top of the spanning tree. The first step in STP is to
elect the root switch, BPDUs are used for the election process.
(For switches that implement VLANs, the switches will have a different switch ID per VLAN and a
separate instance of STP per VLAN. Each VLAN has its own root switch and within each VLAN, STP
will run and remove loops in that particular VLAN)
Bridge ID
Bridge ID is determined by using switch priority (32768 by default and can have a value between 0
and 65,535) and switch's MAC address and it is 8 bytes long (bridge priority (2 bytes) and switch's
MAC addresses (6 bytes)).
Example:
Bridge Priority: 1000000000000000 (Binary equivalent of 32768)
MAC Address: 0001.002E.0025 H
Bridge ID in the above instance is as given: 32768.0001.002E.0025
Bridge priority is given in decimal and MAC is given in Hex for simplicity. In actual practice, both
figures are converted to binary/hex while determining the Bridge ID. Additionally, the bridge ID also
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a gigabit port will have less port cost than a 100mbps port. this value can range from 0 to 2^6. If two bridges have equal priority value. Bridge Port Cost and Path Cost: The port cost is inversely proportional to the port bandwidth.depends on the STP protocol being used. and the exact criteria for computing the Cost Value given the Link Speed is not known. How Root Switch is selected? The following criteria is applied while selecting the Root Bridge: The switch with the lowest Bridge ID is chosen as root. For PVST. The switch with the lowest MAC address will be chosen as the root Bridge.002E. The table is based on IEEE 802. the port with the lowest MAC address will be used the Bridge MAC address. the lesser the path cost.0026 In the above example. Switch A will be chosen as the Root Bridge because it has the lowest MAC address value though the priority values of both the switches are same. LAN information will also be taken in to consideration while computing the Bridge ID. PVST is beyond the scope of this article. MAC address: 0001. The default port priority is 32. The following table lists the Port Cost value for different port bandwidths.0 Link Speed Cost Value 10 Gbps 2 Copyright © 2002 – 2016 CertExams. Each port ID is 16 bits long with two parts: a 6-bit priority setting and a 10-bit port number. However. Port ID Port ID is Port Priority and Port number. The more the bandwidth of a port. Note that Bridge ID is a combination switch priority (32768 by default) and switch's MAC address. Port Priority Every port on a bridge will have a priority value. For example.1d standards recommendation. Note: In a multi port bridge. Example: Switch A: Priority value: 32768.com 42 .002E. Version 2. then the MAC addresses are compared. However.0025 Switch B: Priority value: 32768. Port Number: The port number is 10-bit long and can have values 0 to 2^10. While comparing two bridge IDs. the bridge priority is compared first. MAC address: 0001.

The selection of root port is based on the following criteria: i. ii. If the path cost to reach the root bridge over two or more bridge ports is same.1 Gbps 4 100 Mbps 19 10 Mbps 100 When a packet leaves a port on a bridge. The path cost is the accumulated port costs from a switch to the root switch. the port cost is added to the path cost. ii.com 43 . there are two paths from SW3 to reach root bridge. Example: Version 2. all other switches in the switched network need communicate with the root bridge choosing a single port on itself (known as the root port). Path Cost calculation is given below (SW3(Via Port1) -> SW2) + (SW2 -> SW1) = 19+4 = 23 (SW3(Via port 2) -> SW2) + (SW2 -> SW1) = 4+4 = 8 Hence port 2 on SW3 will be considered as root port.0 Copyright © 2002 – 2016 CertExams. Root Port and its selection: Once the root bridge is elected. Example: In the above example. If there are two or more paths to reach the Root Bridge (Switch) select the bridge port associated with the lowest accumulated path cost. then: Select the neighboring switch with the lowest Switch ID value to reach the Root Bridge (Switch).

iii. select the lowest port number on the switch.In the above example.0 Copyright © 2002 – 2016 CertExams. If all the ports are configured with same priority number (32 by default). then: Select the port with the lowest Port Priority value. If there are two or more ports on the same bridge with the lowest path cost. which is the port connecting to SW2 in this case. the path costs from SW3 to reach the root bridge is same in both cases case 1: SW3-SW2-SW1 = 4+4 = 8 case 2: SW3-SW4-SW1 = 4+4 = 8 The port connecting the neighboring switch of SW3 with the lowest Bridge ID value will be considered as root port. Example: Version 2.com 44 . if you have multiple paths to reach the Root Bridge (Switch) via same neighbor switch.

Since the port priority is same on both ports of SW3.In the above example. there are two paths from SW3 to reach root bridge.0 Copyright © 2002 – 2016 CertExams. Hence port 1 on SW3 will be considered as root port.com 45 . it must select one path and the associated port as the root port. the lowest port number 1 will be considered as the root port on SW3. Example: Version 2. Designated Bridge: A designated bridge is elected on a LAN segment in accordance with the following criteria: a. Note: Root Bridge will never have a root port. In a LAN segment. iii. If a switch has multiple paths to reach the root switch. the bridge with the lowest path cost to the Root Bridge will be the Designated Bridge.

on segment SW2-->SW3. If there are two bridges in the LAN segment with equal path cost to the Root Bridge. Version 2. the bridge with the lowest path cost to the root bridge is SW2. OR b. hence it is elected as Designated Bridge on that segment. In the above example.* Note that the figure is just for the demonstration of the spanning-tree concept and is not exactly looped network. then the Bridge with the lowest Bridge ID becomes the Designated Bridge.0 Copyright © 2002 – 2016 CertExams. Example In the above example.com 46 . hence the bridge with lowest bridge ID becomes the designated bridge which is SW2 in this case. both the bridges SW2 and SW3 have equal path cost to reach the root bridge. on SW2-->SW3 segment.

A Root Port can never be a Designated port. Designated Port A layer 2 switched network consists of one or more LAN segments. The switch port (associated with the Designated Bridge) on the LAN segment with the lowest accumulated path cost to the Root Bridge will be selected as Designated Port (DP) for the given segment.Designated Port). In a LAN segment.com 47 .iv." any ports on the Root switch that are directly connected to the LAN segments will become designated ports. NDP. the following criteria applies in the selection of a Designated Port on the given LAN segment:: i. if not a Root Port (RP). Example: Version 2. but a Switch can have multiple Designated ports (marked as DP). There can be only one Root Port (marked as RP) on a Switch. How a DP is selected? Once the Designated Bridge is elected on a LAN segment. Since the root bridge will have a path cost of "0.0 Copyright © 2002 – 2016 CertExams. the port used to reach the Root port (RP) is called Designated port (DP). but a Switch can have multiple Designated ports (marked as DP). Designated ports are selected based on the lowest path cost to the root bridge for a given segment. one for each LAN segment. Once the designated port for a network segment has been chosen. Each of these LAN segments need to access the Root Bridge. There can be only one Root Port (marked as RP) on a Switch. They block network traffic from taking that path so it can only access that segment through the designated port. the other end of the segment is designated as NDP (Non .

* Note that the figure is just for the demonstration of the spanning-tree concept and is not exactly looped network. Therefore on the designated bridge (SW2).com 48 .0 Copyright © 2002 – 2016 CertExams. Version 2. Example: In this example. the switch port with the lowest port priority (32 by default) is selected. there is redundant connection on segment SW2-->SW3. ii. If a switch has redundant connections to the network segment. the port with the lowest port priority will be selected as the designated port which is port 1 on SW2 in this case.

the lowest numbered port on the switch will be selected as designated port which is port 1 on SW2 in this case. Example: In this example.com 49 . then the lowest numbered port on the switch is selected. On the designated bridge (SW2). both the ports have same priority.iii. there is redundant connection on segment SW2-->SW3. If there is again a tie (it can happen if the priorities of the ports on this switch are the same). STP on a 5-Switched Network Explanation Version 2. therefore as per the criteria given.0 Copyright © 2002 – 2016 CertExams. 3.

Taking Segment SW2-SW3 as an example.0 Copyright © 2002 – 2016 CertExams. Similarly root ports on other switches are selected. Similarly Designated Port is selected on all the other segments of the switch network. i. Again. Back Version 2. Root Port : RP on each switch is calculated which is the sum of the port costs from each switch to the root switch. the Designated Port will be port 2 on SW1. Example.1. As such. there are three ways to reach root bridge from SW2 as given below: SW2-SW1 = 19 (lowest path) SW2-SW3-SW4-SW1 = 19+19+19+19 = 76 SW2-SW5-SW4-SW1 = 19+19+19+19 = 76 Therefore. 3. the path cost from SW2 to root switch is lesser than SW3 to root. port 1 on SW2 becomes the root port. thus becoming the decisive factor because the priority is default on all the switches.. port 2 on SW1 has a cost of 0. the Designated Port will be on SW2. and they will be in blocking state where frames are neither sent/received. while port 1 on SW4 has a cost of 19. And the other port which is not a designated port will be called a non-designated port NDP like port 2 on SW3 and SW5 in the above figure. On segment SW1->SW4. it should be clear that ports on the Root Bridge will always be Designated Ports for their connected segments. lowest path cost will become the root port. the Designated Port will be port 1 on SW1. Root Bridge : SW1 is the root bridge because of its lowest MAC-address. while port 1 on SW2 has a cost of 19.com 50 .e. 2. That’s because port 1 on SW1 has a cost of 0. Designated Port : On segment SW1-->SW2. Since their port cost is always 0. Any active port that is not a root port or a designated port is a blocked port (BP).

10. 10.0 Copyright © 2002 – 2016 CertExams.1 : Lab Exercise 1 : Enabling STP Description : This lab exercise demonstrates the necessary commands to enable and disable spanning tree protocol on a switch. It is possible to disable or enable the Spanning Tree Protocol (STP) when required. Instructions: 1. Also note that the spanning tree commands are made available only on 2950 switch in the simulator. SW1>enable SW1#configure terminal SW1(config)#spanning-tree vlan 1 SW1(config)#no spanning-tree vlan 1 SW1(config)#exit SW1# Back Note: Spanning Tree Protocol (STP) is enabled by default on modern switches. Issue command "spanning-tree vlan <vlan-num> to enable spanning-tree on a specified VLAN 3.com 51 . Enter into configuration mode on SW1 2. Version 2. Issue no form of the command "spanning-tree vlan <vlan-num> to disable spanning-tree on the VLAN specified.2.2 Lab Exercises using Cisco switches Note: Please refer to the below network for the exercises given in this section.

10. Version 2. VLAN number 2. Bridge timers (Max Age. Forward Delay) Back 10. Root bridge priority.2. Issue the command "spanning-tree vlan <vlan-num> root" that modifies the switch priority from the default 32768 to a lower value to allow the switch to become the root switch for VLAN 1 3.3 : Lab Exercise 3 : Configuring Port-Priority Not Available in Demo Version.2 : Lab Exercise 2 : Configuring Root Switch Description : This lab exercise demonstrates the necessary commands to configure the root switch.2.5 : Lab Exercise 5 : Configuring STP Timers Not Available in Demo Version. MAC address 3.2. 10. Instructions: 1. 10.6 : Lab Exercise 6 : Verifying STP Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams. SW1>enable SW1#configure terminal SW1(config)#spanning-tree vlan 1 root SW1(config)#exit SW1#show spanning-tree Note: The command "show spantree" includes information about the following: 1.2. Enter into configuration mode on SW1 2. 10. Hello Time. Verify the configuration using “show spanning-tree” command.com 52 .2.4 : Lab Exercise 4 : Configuring the switch priority of a VLAN Not Available in Demo Version.

com 53 .2 : Lab Exercise 2 : Setting bridge priority on switch Description: This exercise demonstrates the command required to configure switch priority of a VLAN.3. Forward-Time: Determines how long each of the listening and learning states last before the interface begins forwarding. Instructions: 1. Verify the configuration using show configuration command.1 : Lab Exercise 1 : Configuring STP Timers Description: This lab exercise demonstrates configuring spanning-tree protocol timers. Issue the command "bridge-priority <priority-value> to configure the switch priority of a VLAN. Enter into configuration mode on SW1 2. Hello-Time: Determines how often the switch broadcasts hello messages to other switches. user@SW1>configure [edit] user@SW1#edit protocols [edit protocols] user@SW1#set stp forward-delay 20 [edit protocols] user@SW1#set stp hello-time 5 [edit protocols] user@SW1#set stp max-age 30 [edit protocols] user@SW1#exit [edit] user@SW1#commit [edit] user@SW1#exit user@SW1>show configuration Back Note: i. Version 2. Use the command “set stp hello-time/forward-time/max-age <value>” to configure the various STP timers on the switch 3. iii. 10.10. Enter into configuration mode on SW1 2. Max-Age: Determines the amount of time the switch stores protocol information received on an interface. Instructions: 1.3.0 Copyright © 2002 – 2016 CertExams.3 Lab exercises using Juniper switches 10. ii.

1Q specification and Version 2.4 : Lab Exercise 4 : Verifying STP Not Available in Demo Version. default is 32768.user@SW1>show spanning-tree interface user@SW1>configure [edit] user@SW1#edit protocols [edit protocols] user@SW1#set stp bridge-priority 12288 [edit protocols] user@SW1#exit [edit] user@SW1#exit Note: The switch priority can be configured thus making it more likely to be chosen as the root switch. 10. Since PVST treats each VLAN as a separate network. Priority range is 0 to 61440 in increments of 4096.3.1 Lab Exercises using Cisco switches 11.1 Notes on Per-VLAN Spanning Tree Protocol Per-VLAN Spanning Tree (PVST) maintains a spanning tree instance for each VLAN configured in the network. Back 10.3 : Lab Exercise 3 : Configuring port priority Not Available in Demo Version. Per VLAN Spanning Tree Plus (PVST+) provides the same functionality as PVST using 802.4 : Objective Test 4: Answer the following Questions Not Available in Demo Version. PVST+ is an enhancement to the 802. 10. Exercises on Per-VLAN Spanning Tree Protocol and VSTP 11. it has the ability to load balance traffic (at layer-2) by forwarding some VLANs on one trunk and other Vlans on another trunk without causing a Spanning Tree loop. It uses ISL Trunking and allows a VLAN trunk to be forwarding for some VLANs while blocking for other VLANs.1Q trunking technology rather than ISL.1.com 54 .0 Copyright © 2002 – 2016 CertExams. 11.3.

2 : Lab Exercise 1 : Enabling and disabling Uplinkfast feature on a switch Description: This lab exercise demonstrates the usage of the uplinkfast command on the switch. Note: Please refer to the below network for the exercises given in this section. Use the command "Spanning-tree uplinkfast" to enable uplinkfast feature on the switch and verify the same using show command. SW1>enable SW1#configure terminal SW1(config)#spanning-tree uplinkfast SW1(config)#exit SW1#show spanning-tree summary SW1(config)#no spanning-tree uplinkfast Note: Uplinkfast provides fast convergence in the network access layer after a spanning-tree topology change using uplink groups. 11.com 55 . When uplinkfastis enabled. 3. Use the no form of the above command to disable the uplinkfast on switch and verify the same using show spanning-tree summary command.0 Copyright © 2002 – 2016 CertExams.is not supported on non-Cisco devices. 2. Instructions 1. Also note that the spanning tree commands are made available only on 2950 switch in the simulator.1. it is enabled for the entire switch and all VLANs and note that this command Version 2. Enter into the global configuration mode on the switch. Enables fast uplink fail over on an access layer switch when dual uplinks are connected.

the bridge priority is changed to 49. Version 2. 11. Back 11.5 : Lab Exercise 4 : Enabling PVST+ on a switch Not Available in Demo Version.2. 11.3 Objective Test 5 : Answer the following questions Not Available in Demo Version.1.is not allowed on root bridge switch. 11.0 Copyright © 2002 – 2016 CertExams.152 so that this switch will not be selected as root.4 : Lab Exercise 3 : Enabling and disabling Portfast feature on a switch Not Available in Demo Version.2 Lab exercises using Juniper switches 11. 11.3 : Lab Exercise 2 : Enabling and disabling Backbonefast feature on a switch Not Available in Demo Version. 11.1 : Lab Exercise 1 : Enabling VSTP on all VLANs Not Available in Demo Version.com 56 .1.2 :Lab Exercise 2 : Enabling VSTP on a VLAN using a single VLAN-ID / VLAN-Name Not Available in Demo Version.2.6 : Lab Exercise 5 : Implementing Per-VLAN Spanning Tree on a switch network Not Available in Demo Version.1. When UplinkFast is configured. 11.1.

com 57 . Enter into PoE hierarchy mode on SW2 that has PoE enabled ports.6 for EX3200 and EX4200 switches and 0. Maximum power syntax is “Set interface (all | interface-name) maximum-power <watts>”. Version 2. 2. Maximum-Power: Set the maximum amount of power that the switch can supply to the PoE port.4 for EX3200 and EX4200 switches and 30. Range to be set is 0. user@SW2>configure [edit] user@SW2#edit poe [edit poe] user@SW2#set guard-band 12 [edit poe] user@SW2#set interface ge-0/0/0 maximum-power 18.0 for EX2200 switches and Default is: 15. Back 12. Instructions 1.0 Copyright © 2002 – 2016 CertExams.0 through 18. Lab Exercises on PoE (using Juniper switches) 12.1 : Lab Exercise 1 : Configuring guard-band and maximum power on PoE enabled interface Description: This exercise demonstrates the commands required to configure parameters like guard-band and max power on a PoE enabled interface. Range to be set is 0 through 19 where default value is 0 3.2 : Lab Exercise 2 : Configuring power management mode on PoE enabled interface Not Available in Demo Version.0 through 30. Verify using show poe interface command that display status of all PoE ports on the switch.12.6 [edit poe] user@SW2#exit [edit] user@SW2#commit [edit] user@SW2#show user@SW2#exit user@SW2>show poe interface Note: Guard-band: Reserve a specified amount of power out of the PoE power budget in case of a spike in PoE consumption.0 for EX2200 switches 4. Guard-band syntax is “Set guard-band <watts>”.

It will be useful to practice these commands. d Explanation : Show version command displays the current version of the Cisco IOS.12.1 : Answer keys for Objective Test 1 Not Available in Demo Version. this command displays the following important information: . 14.How long the switch has been up (length of time since boot-up).0 Copyright © 2002 – 2016 CertExams. same as using "Right Arrow". In addition.4 : Lab Exercise 4 : Setting power priority on all PoE enabled interfaces Not Available in Demo Version. or tftp etc. 13.com 58 . same as using "Left Arrow". Final Exam: Answer the following Questions Not Available in Demo Version.From where the system was loaded from ( booted via flash.) .2 Answer Keys for Objective Test 2 1.) . Appendix 14.How the system was started (power on etc. <ctrl> B : Move backward one character. Version 2.3 : Lab Exercise 3 : Disabling a PoE interface Not Available in Demo Version. . c and d Explanation : The following are some important commands that can be used to edit and review command history buffer. 2. 14. <ctrl> A : Move to the beginning of the command line <ctrl> E : Move to the end of the command line <ctrl> F : Move forward one character.The contents of configuration register. 12.

0 Copyright © 2002 – 2016 CertExams. The following are some frequently used COPY commands: COPY RUNNING-CONFIGURATION STARTUP-CONFIGURATION (alternatively.This is the LOWEST level of access.This mode allows you to have all the privileges of EXEC (user) mode plus commands that enable you to view configuration files. followed by all the characters typed at the last one. 4. <ctrl> N : Repeat Next (more recent) command. change the switch configuration. COPY FLASH TFTP .Copies current IOS from switch flash memory to TFTP server. c Explanation : Switch modes of operation: 1. perform troubleshooting that could potentially disrupt traffic. However. When you are working in the privileged mode (at # prompt). or if your IOS image becomes corrupt. The default prompt for this mode is "Switch#". view the configuration files.com 59 . you can get back to user mode by typing "disable" at the "#" prompt. The prompt in this mode is "Switch>". same as using "Down Arrow". This is used to upgrade the IOS image file to a newer version. <ctrl>R : Creates new command prompt. <esc> B : Moves to beginning of previous word. WRITE MEMORY): This command saves the current configuration to NVRAM.b Explanation : Key word: COPY <source> <destination> This command copies configuration information to specified location. 3.This command merges configuration from NVRAM to RAM.Copies configuration from RAM to NVRAM COPY STARTUP RUNNING . or control the switch in any way. you cannot change the switch configuration. you can use an older version of the command. same as using "Up Arrow". <esc> F : Moves to beginning of next word. we can issue the command using short form: COPY RUNNING STARTUP . Privileged (enable) EXEC mode:.Copies image file from TFTP server to flash. 2. Alternatively.<ctrl> P : Repeat Previous command. COPY TFTP FLASH . User EXEC mode:. Version 2. This allows examination of switch status and do some diagnostics.

com 60 . 14.3 Answer Keys for Objective Test 3 Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams. 15. Workgroup Switch-Layer 2 Device 3. Icons used in the Manual 1. 14. PC/Workstation 4.6 Answer Keys for Final Exam Not Available in Demo Version.14.5 Answer Keys for Objective Test 5 Not Available in Demo Version. Serial-Icon to represent a Layer 1 or 2 cable Version 2. Router-Layer 3 Device 2. 14.4 Answer Keys for Objective Test 4 Not Available in Demo Version.

com is neither affiliated with nor endorsed by Cisco® Systems. Check Point Software Corp.5. Network Cloud CertExams..0 Copyright © 2002 – 2016 CertExams. Microsoft® Corporation. Inc. All trademarks are trademarks of their respective owners and duly acknowledged. Juniper Systems Inc or any other company. Ethernet-Icon to represent Layer 1 or 2 Ethernet cable 7.com 61 .. CompTIA®. Version 2. Circuit-Switched Serial 6. Inc.. Prosoft®.