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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 14.0 Copyright © 2002 – 2016 CertExams.com 4 . Final Exam 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 15.3 14. Appendix 14.2 14.4 14.13.1 14. Icons used in the Manual Version 2.

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

and provides access for over 250 users. Catalyst 4000 Series switch Juniper Access Layer Switches 1.com 6 .definition. provides a 10/100/1000Mbps access to a maximum of 96 users and a maximum of 36 Gigabit Ethernet ports for servers. provides switched 10Mbps to the desktop/10BaseT hubs in small/medium campus networks. and security. provides 10/100Mbps switched access to a maximum of 50 users.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. • 5000/5500. • 4000. iii. Inter-VLAN routing. supports 100/1000Mbps Ethernet switching. 3. Cisco Access Layer Switches The following Cisco catalyst switches come under the access layer • 1900/2800. Version 2. WAN blocks and / or any other blocks that may be present. • 2900. Core Layer : The primary function of a Core Layer is to switch traffic as fast as possible and provide connectivity between switch blocks. and gigabit speeds for servers.0 Copyright © 2002 – 2016 CertExams. EX2200: Juniper Networks EX2200 Ethernet switches provide connectivity for low-density environments. Switched Network Model 3.

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

EX3200 switches with a DC power supply installed do not provide PoE. a strong switch that utilizes an external router processor. The following Cisco catalyst switches come under the distribution layer • 5000/5500. EX3200: The EX3200 line of Ethernet switches offers a simple. All models provide ports that have 10/100/1000Base-T Gigabit Ethernet connectors and optional 1-gigabit small form-factor pluggable (SFP) transceivers. provides 384 10/100 Ethernet connections. • 6000.0 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. and 192 100FX FastEthernet connections and 130 Gigabit Ethernet ports. or 10-gigabit small form-factor pluggable (XFP) transceivers for use with fiber connections. 2926G Switch Juniper Distribution Layer Switches 1. 10-gigabit small form-factor pluggable (SFP+) transceivers. Version 2. supports a considerable number of connections and the Route Switch Module (RSM) processor module. 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. cost-effective solution for low-density branch and regional offices.support.com 8 .

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

Juniper Core Layer Switches 1.8540 Switch 8500. Internet Protocol (IP). Application-Specific Integrated Circuits (ASICs) is used to provide multiple-layer protocol support. IP multicast.0 Copyright © 2002 – 2016 CertExams. This includes bridging. Typically. 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. provides high performance switching for the Core layer. 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.com 10 . Asynchronous Transfer Mode (ATM) switching. The FB and BF in the model number indicate the direction of airflow of the chassis: FB—Front-to-back airflow Version 2. EX4500: EX4500 switches provide connectivity for high-density 10-Gigabit Ethernet data center topof-rack and aggregation deployments.

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

• Up to 48 of the access ports can be used for SFP+ transceivers or SFP+ direct attach copper cables. and up to 36 of the ports as 1-Gigabit Ethernet interfaces. Version 2. 4 40-Gbps uplink ports in the switch use quad. as well as SFP+ direct attach copper cables.com 12 . 4-Gbps. • Up to 36 of the access ports can be used for SFP transceivers. or 8-Gbps Fibre Channel (FC) interfaces. you can choose to configure up to 12 of the ports as 2-Gbps. or 8-Gbps Fibre Channel SFP+ transceivers can be used in ports 0 through 5 and ports 42 through 47. 2-Gbps. Gigabit Ethernet SFP transceivers can be used in ports 6 – 41.0 Copyright © 2002 – 2016 CertExams. Optionally. 4-Gbps. 10-Gigabit Ethernet SFP+ transceivers and SFP+ direct attach copper cables can be used in any access port.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. 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. 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. small form-factor pluggable plus (QSFP+) transceivers. also known as Twinax cables.

0 Copyright © 2002 – 2016 CertExams.4 Summary 1. Cisco Core/Distribution Layer Switches 1. Cisco Catalyst 3550 Series Switches 9. Cisco Catalyst 3560-E Series Switch 3. Juniper Access Layer Switches 1. Juniper Core Layer Switches 1. Cisco Catalyst 2960 Series Switches 12.EX4500 2.com 13 . Cisco Catalyst 2955 Series Switches 13. For example: A distribution layer switch can be used in core layer and viceverse if it meets the customer’s networking requirement Version 2.EX8200 3. Juniper Distribution Layer Switches 1. Cisco Catalyst 3750 Series Switches 3. Cisco Catalyst 2940 Series Switches 15. EX2500 4. Cisco Catalyst 3560-E Series Switches 7.QFX3500 Note: Access.3. distribution and access layer may be used inter changeably as per requirement. Cisco Catalyst 3750-E Series Switches 4. Cisco Nexus 7000 Series Switches 3.EX3200 2. Cisco Catalyst 6500 Series Switches 2. Cisco Catalyst 4500E Series Switches 4. Distribution and Core layers are defined for convenience in design and implementation of computer networks. Cisco Catalyst 2950 Series Switches 14.EX4200 5. However the devices in core. Cisco Catalyst 3750-X Series Switches 5. EX2200 2. Cisco Access Layer Switches 1. Cisco Catalyst 2975 Series Switches 10. Cisco Catalyst 3560-X Series Switches 8. Cisco Catalyst 2350 Series Switches 2. Cisco Catalyst 3560 Series Switches 6. Cisco Catalyst 2960-S Series Switches 11. Cisco Catalyst 4500 E Series Switches 2.

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. Switch Device Features Cisco Switch Device Features Cisco 2950 switch (CISCO CATALYST 2950 24 PORT SWITCH WS-C2950-24 10/100) 1. Fig 1 Fig 2 Version 2.4.com 14 . Please note that the 2950 series switches come in different flavors and vary greatly in the number and type of ports available.0 Copyright © 2002 – 2016 CertExams.

or 100BASE-TX-compatible devices. servers. such as high-speed workstations. routers. Refer Fig 2 above for reference Version 2. These ports only operate at 100 Mbps in full-duplex mode. 100BASE-FX Ports The 100BASE-FX Ports use 50/125. 2. or 100 Mbps. 10 Mbps. servers.5/125-micron multimode fiber-optic cabling. hubs. LED INDICATORS: LEDs (Light Emitting Diodes) can be used to monitor switch activity and performance.Fig 3 Explanation: The switch front panel contains Ports. servers.com 15 . The 10/100 ports can be explicitly set to operate in any combination of half duplex. hubs. The ports can connect to10BASE-T-compatible devices. and other switches. such as workstations and hubs. and other switches. PORTS: 1. Changing the port mode changes the information provided by each port status LED. LEDs and the Mode button. 10/100/1000 Ports The 10/100/1000 ports on Catalyst 2950T-24 switches use RJ-45 connectors and twisted-pair cabling. routers. such as high-speed workstations.0 Copyright © 2002 – 2016 CertExams. and other switches or 1000BASE-T-compatible devices. full duplex. such as high-speed workstations. 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. such as workstations and hubs or 100BASE-TX-compatible devices. 10/100 Ports These use RJ-45 Connectors and twisted-pair cabling and they can be connected to 10BASE-Tcompatible devices. routers. hubs.or 62.

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.1.0 Description Copyright © 2002 – 2016 CertExams. System LED : Specifies whether the system is receiving power and is functioning correctly. Port mode LED: Indicates the current state of the mode button. 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. Flashing amber The internal power supply in a switch has failed. 100. DUPLX Port duplex mode Half duplex or Full duplex. LED Mode Port Mode STAT Port status This is the default mode. Color Status Off RPS is off or is not installed. SPEED Port speed Port operating speed: 10 or 100 Mbps for 10/100 ports and 10. and the RPS is providing power to the switch 3. or 1000 Mbps for 10/100/1000 ports Version 2.com 16 . Solid green RPS is connected and ready to provide back-up power.

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

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. There are two Catalyst 1900 switches. These ports can connect to 10BaseTcompatible devices. the 1912. and the 1924 with 24 10BaseT switched ports and two Fast Ethernet switched ports. and four RMON groups.You can manage switches by using an SNMP-compatible management station running platforms such as HP OpenView and SunNet Manager. or 5 cabling. Cisco has created a Command-Line Interface (CLI) for the 1900 series of switches. · Switched 100-Mbps Ports The switches can have any of the following high-speed ports (depends on model): Version 2.1D bridge MIB.com 18 . The figure above shows a 24-port 1900 switch with 2 Fast Ethernet ports. 4. refer to the documentation that came with your SNMP application. The switch supports a comprehensive set of MIB extensions and MIB II. · 10BaseT ports The 10BaseT network ports use standard RJ-45 connectors. with 12 10BaseT switched ports and two Fast Ethernet switched ports. such as individual workstations and hubs. the distance between the switch and the attached device can be up to 100 meters. Using this type of cabling. the IEEE 802. The Cisco Catalyst 1900 switch is useful for small workgroups needing switched 10-Mbps ports. Cisco 1912 – 12 port switch The Cisco Catalyst 1900 series of switches offer an economical option for Ethernet networks. For more information. with Category 3.

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

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 2.2. above the uplink ports.0 Copyright © 2002 – 2016 CertExams. 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.com 20 .

3.0 Copyright © 2002 – 2016 CertExams.com 21 . 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.

carrier-class element management system (EMS) for managing the Cisco Catalyst 6500 and 6000.5. Another important feature of JUNOS is that the software is platform independent (within Juniper hardware systems. (Earlier switches ran CatOS. The equivalent IOS commands to the above given SET commands are Ex: shutdown duplex speed spanning-tree portfast switchport mode trunk 3. 2970 and 2950 switches. The software is modular and standards based. 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.) IOS is a package of routing. Version 2. internetworking and telecommunications functions tightly integrated with a multitasking operating system.0 Copyright © 2002 – 2016 CertExams. All configurations in CatOS were done via Set command sequence. With real-time inventory discovery capabilities. CatOS (Catalyst OS) also known as Set based IOS is operating system that was used on some cisco switches earlier. The Cisco Catalyst Switch Manager is a graphical user interface (GUI)-based. 4000 and 4500. Switch Operating Systems Operating system for Cisco switches 1. Operating system for Juniper switches The operating system software that powers the Juniper routers is called JUNOS. thus delivering the same scalability and security across several hardware platforms. This Cisco EMS provides a range of GUI features designed to increase network operations productivity. 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. not to be confused with other vendor hardware). Cisco IOS (originally Internetwork Operating System) is the software used on the vast majority of Cisco Systems routers and current Cisco network switches. switching. 3550.com 22 . Ex: set port disable set port duplex set port speed set spantree portfast set trunk 2. this EMS ensures quicker deployment of Cisco networking equipment and provides comprehensive element service assurance to more quickly solve network problems.

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

the generic configuration prompt is user@host#. Remember to activate the configuration by using the command "commit" on the router. Statement Hierarchy: We use the above configuration mode commands to create a statement hierarchy. we can change the prompt by using appropriate command. and then configure the JUNOS software. Ofcourse. we can configure by creating a text (ASCII) file that contains the statement hierarchy. 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. Ex: user@host#set hello-interval 14 Version 2. Configuration Mode: We use the Configuration mode for configuring the JUNOS software by creating a hierarchy of configuration statements.0 Copyright © 2002 – 2016 CertExams.com 24 .2. As shown in the above example. 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. The term "statement hierarchy" is used to define the sequence of commands used for configuring a particular feature (or features) of the router.

7.1 : Lab Exercise 1 : Introduction to Switch Description: A basic exercise to get familiar with the different commands related to switch . and use the following commands. Version 2.This command requires privileged EXEC mode access. 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. Switch IOS Fundamental Exercises Note: Please refer to the below network diagram for the switch exercises given in the next section. Show interfaces: Displays statistics and status information of all the interfaces on the switch.com 25 .

Show running-config displays the running configuration SW1>enable SW1#show version SW1#show interfaces SW1#show running-config Back 7.Instructions: 1. Enter into privileged mode 2. Show interfaces command displays the interfaces of the switch 4. Connect to switch and you should see the user mode prompt 2.0 Copyright © 2002 – 2016 CertExams. Enter into global Configuration Mode 3. Note that the banner is set in a single command line here. Set hostname as cisco SW1>enable SW1#configure terminal Version 2.2 : 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. Set banner to: "Welcome to local host". Instructions: 1. Enter into global Configuration Mode 3. Instructions: 1. Enter into privileged mode 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. Show version command displays the IOS version of the switch 3. Starting and ending character of the banner should be "Z" (Do not use quotes) 4.3 : Lab Exercise 3 : Setting Host Name Description: This basic exercise illustrates the steps required to set a hostname to a switch.com 26 .

com 27 . 7. 7. 7. 7. 7.8 : Lab Exercise 8 : Copy Running Configuration to Startup Configuration Not Available in Demo Version.11 : Lab Exercise 11 : Basic Switch Interface Configuration Not Available in Demo Version.SW1(config)#hostname cisco Cisco(config)# Back 7.9 : Lab Exercise 9 : Setting Port Speed and Mode on a Switch Not Available in Demo Version.7 : Lab Exercise 7 : Enable Fast Ethernet Interface on a 2950 switch Not Available in Demo Version. 7. 7.6 : Lab Exercise 6 : Switch 2950: Setting Privileged Password Not Available in Demo Version.10 : Lab Exercise 10 : Initial Switch configuration Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams. Version 2.5 : Lab Exercise 5 : Switch 2950 VTY password assignment Not Available in Demo Version.4 : Lab Exercise 4 : Switch 2950 Console Password Assignment Not Available in Demo Version.

Press enter to get the switch prompt 2. and exit Description: A basic exercise. Enter into privileged mode 2.1 : Lab Exercise 1 : Entering User EXEC prompt on a Switch. privileged mode.14 : Objective Test 1 : Answer the following Questions Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams.1 Lab exercises using Cisco Switches 8. type the command ? used to view all the commands in user mode 3. 7.com 28 . Basic Exercises 8. Get back to the user mode SW1> SW1>enable SW1#disable SW1> Back 8. that shows how to enter into privileged EXEC prompt from user mode prompt. and exit from the same. Instructions: 1. CLI and basic commands.12 : Lab Exercise 12 : Configuring Port-Security on a Switchport Not Available in Demo Version. 8.2 : Lab Exercise 2 : Introduction to Basic User Interface Description: This exercise helps to get familiar with the user mode.1.1. 7.7. In the user mode. Instructions: 1. Enter into privileged mode Version 2.13 : Lab Exercise 13 : Catalyst 2950 Switch Configuration Not Available in Demo Version.

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. Show history command displays all the past commands still present in switch memory 5.0 Copyright © 2002 – 2016 CertExams.1. ip. type the command ? to view all the commands in privileged mode 5. vlan. macaddress-table. The currently active configuration script running on the switch is referred to as the running-config in the switch’s CLI 8. vtp etc 6.com Back 29 . interfaces. The command show ? displays all the show commands like show banner. flash memory is a special kind of memory that contains the operating system image file(s) on the switch 4. Enter into privileged mode 2. Instructions: 1.4. Show vlan and show vtp status displays the vlan and vtp information respectively. Show flash. Press space bar to view more information 8.3 : 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 ip interface brief command displays information about each interface 6. Show mac-address-table command displays mac-address-table on the switch 7. 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. In the privileged mode. 3.The command show running-config displays the running configuration 7. Show running-config displays the active configuration in memory.

3. copy running-config startup-config command can be interpreted and used in short form as “copy run start” command. show running-config command can be interpreted and used in short form as “show run” command. Note: We can also use UP ARROW and DOWN ARROW keys to get the previously typed command in the simulator.2.2 Lab exercises using Juniper switches Note: Please refer to the below network diagram for the switch exercises given in the next section. show startup-config command can be interpreted and used in short form as “show start” command.com 30 . 2.1.1 : 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 2.4 : Short form commands 1. 8.0 Copyright © 2002 – 2016 CertExams. Back 8.8.

com 31 .the same.2 : Lab Exercise 2 : Setting Hostname Description: Set the switch hostname as junipersw.2. Instructions 1.3 : Lab Exercise 3 : Set interface description Description: In this exercise. Enter into configuration mode 2. description to an interface is set by using set description command. 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. 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. Instructions: 1. Enter into configuration mode 2. Instructions 1.2. Choose SW1 from the network diagram. Choose SW1 from the network diagram and exit. Enter into configuration mode 2. Get back to the operational mode user@SW1>configure [edit] user@SW1#exit user@SW1> Back 8.0 Copyright © 2002 – 2016 CertExams.

You want to find the IOS version your switch is running. 8.5 : Lab Exercise 5 : Basic CLI commands Not Available in Demo Version.com 32 . 8.7 : Lab Exercise 7 : Configuring ether-options on the gigabit ethernet switch interface 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.[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 8.2.2. 8.2.3 Objective Test 2 : Answer the following Questions 1.6 : Lab Exercise 6 : Configure bandwidth on an interface Not Available in Demo Version. 8.2. 8.4 : Lab Exercise 4 : Shutdown an interface Not Available in Demo Version.2. Which command shows this information? a) show protocol b) show interface c) show processes d) show version Version 2.

c) LAN segmentation using VLANs can be done based on job function rather than physical location. Which command would you type at the privileged mode prompt? a) quit b) exit c) disable d) end 4. 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 are typically configured on switch ports. 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 9.0 Copyright © 2002 – 2016 CertExams. 2. b) Security is provided by isolating users corresponding to different VLANs. Users belonging to one VLAN will not receive frames mean for some other VLAN. 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.1 Notes on VLAN and VTP i.2. 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. VLANS 1. You want to get back to user mode.com 33 . You are working in privileged mode (at # prompt). Separate VLANs for voice and data traffic improves the privacy and reliability of voice communication. Exercises on Switch Configuration and VLAN 9. if required. Version 2. However.

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

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

255. By default.0 2950(config-if)#exit 2950(config)#ip default-gateway 172.16. To prevent this from occurring. 8. Exit switch configuration mode SW1>enable SW1#configure terminal SW1(config)#hostname 2950 2950(config)#interface vlan 1 2950(config-if)#ip address 172. set a VTP password on the switches you want to exchange information.10 255.16. Assign default gateway route 172. and any switch that has no VTP domain name can join the VTP domain when trunking is enabled. Back 9.1.2.0.255.16. Also any switch that has the same VTP domain name will join and exchange VTP information.1. This could enable an unwanted switch in your network to manage the VLAN database on each of the switches. a switch forwards the flooded traffic across a link to another switch. Also.1 : Lab Exercise 1 : Basic Switch IP Configuration Description: Configure hostname as 2950.255.0 Copyright © 2002 – 2016 CertExams. only if that switch has ports associated with that VLAN.7. multicast. VTP pruning is a technique that enhances the available network bandwidth by reducing the broadcast.1.16.255.0.2 6.1.2 : Lab Exercise 2 : Configuring 2950 Switch vlan Description: Configure vlan1 on 2950 switch.2 Lab exercises using Cisco switches 9.10.2.0 5. and flooded unicast messages. set the default-gateway to 172. copy running configuration to startup Version 2.16.3 mask 255.10 255. Assign an ip address 172.2 Instructions: 1.255.1. and set the switch ip address to 172.16.16. Set ip default-gateway to 172.2 2950(config)#end Back 9. Enter privileged Exec mode 3.com 36 .1.255. subnet mask 255.255.2. there are no passwords in VTP informational updates. These frames are not forwarded to network devices that don't have ports associated with a given VLAN.255. Enter user Exec mode 2.2.2.16. When VTP pruning is enabled. Assign the hostname “2950” 4. and set the ip address to 192.

9. Enter privileged exec mode 2.255.255.16.2.configuration.0 Copyright © 2002 – 2016 CertExams.5 : Lab Exercise 5 : Creating and Deleting 2950 VLAN's Not Available in Demo Version.2. Assign IP address 172.0 on VLAN1 4.2 5.2.com 37 .2.2.3 255. 9. Enter global configuration mode 3.2.8 : Lab Exercise 8 : Troubleshooting lab with non-matching domains Not Available in Demo Version. Set the default gateway to 172.2.2.16.4 : Lab Exercise 4 : 2950 Trunking Configuration Not Available in Demo Version. Save the configuration to NVRAM SW1>enable SW1#configure terminal SW1(config)#interface vlan 1 SW1(config-if)#ip address 172.0 SW1(config-if)#exit SW1(config)#ip default-gateway 172.7 : Lab Exercise 7 : Configuring VTP with a VTP Client Not Available in Demo Version.3 mask 255.6 : Lab Exercise 6 : Configuring VTP on 2950 Switch Not Available in Demo Version. 9.16. 9.2 SW1(config)#end SW1#copy running-config startup-config Back 9.2.255. 9.2.3 : Lab Exercise 3 : Troubleshooting 2950 Switch Not Available in Demo Version. Instructions: 1.255.16. Version 2.

2.com 38 . 9.2. 9.12 : Lab Exercise 12 : VLANs and Trunking Not Available in Demo Version.14 : Lab Exercise 14 : Connectivity Testing with Ping and Traceroute Not Available in Demo Version.2.9. Version 2. 9.13 : Lab Exercise 13 : Routing between VLANs (Router on a Stick) Not Available in Demo Version. 9.2.0 Copyright © 2002 – 2016 CertExams.10 : Lab Exercise 10 : VLANs Not Available in Demo Version.2.11 : Lab Exercise 11 : VTP (VLAN Trunking Protocol) Not Available in Demo Version.9 : Lab Exercise 9 : Troubleshooting lab with trunk functionality Not Available in Demo Version.2. 9.

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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then the MAC addresses are compared. the lesser the path cost. the port with the lowest MAC address will be used the Bridge MAC address. Port ID Port ID is Port Priority and Port number.002E.0026 In the above example. For example. The following table lists the Port Cost value for different port bandwidths. Each port ID is 16 bits long with two parts: a 6-bit priority setting and a 10-bit port number. The switch with the lowest MAC address will be chosen as the root Bridge. PVST is beyond the scope of this article.0 Link Speed Cost Value 10 Gbps 2 Copyright © 2002 – 2016 CertExams. 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. MAC address: 0001. MAC address: 0001. Note that Bridge ID is a combination switch priority (32768 by default) and switch's MAC address. If two bridges have equal priority value. this value can range from 0 to 2^6.depends on the STP protocol being used. Bridge Port Cost and Path Cost: The port cost is inversely proportional to the port bandwidth. Version 2. and the exact criteria for computing the Cost Value given the Link Speed is not known. Port Number: The port number is 10-bit long and can have values 0 to 2^10. Port Priority Every port on a bridge will have a priority value. The default port priority is 32. 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.002E. LAN information will also be taken in to consideration while computing the Bridge ID. The more the bandwidth of a port. While comparing two bridge IDs. the bridge priority is compared first. Example: Switch A: Priority value: 32768. For PVST.com 42 . However.1d standards recommendation. Note: In a multi port bridge. a gigabit port will have less port cost than a 100mbps port. However.0025 Switch B: Priority value: 32768. The table is based on IEEE 802.

If there are two or more paths to reach the Root Bridge (Switch) select the bridge port associated with the lowest accumulated path cost. Example: Version 2. Root Port and its selection: Once the root bridge is elected. The selection of root port is based on the following criteria: i. Example: In the above example.1 Gbps 4 100 Mbps 19 10 Mbps 100 When a packet leaves a port on a bridge. there are two paths from SW3 to reach root bridge. ii. all other switches in the switched network need communicate with the root bridge choosing a single port on itself (known as the root port). If the path cost to reach the root bridge over two or more bridge ports is same. 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. then: Select the neighboring switch with the lowest Switch ID value to reach the Root Bridge (Switch). ii.com 43 . the port cost is added to the path cost. The path cost is the accumulated port costs from a switch to the root switch.

which is the port connecting to SW2 in this case.In the above example. then: Select the port with the lowest Port Priority value. If all the ports are configured with same priority number (32 by default). select the lowest port number on the switch. Example: Version 2. If there are two or more ports on the same bridge with the lowest path cost. if you have multiple paths to reach the Root Bridge (Switch) via same neighbor switch.com 44 .0 Copyright © 2002 – 2016 CertExams. iii. 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.

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

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

There can be only one Root Port (marked as RP) on a Switch. Designated ports are selected based on the lowest path cost to the root bridge for a given segment. A Root Port can never be a Designated port. Since the root bridge will have a path cost of "0. the following criteria applies in the selection of a Designated Port on the given LAN segment:: i. the other end of the segment is designated as NDP (Non .com 47 . if not a Root Port (RP).iv.Designated Port). In a LAN segment. How a DP is selected? Once the Designated Bridge is elected on a LAN segment.0 Copyright © 2002 – 2016 CertExams. There can be only one Root Port (marked as RP) on a Switch." any ports on the Root switch that are directly connected to the LAN segments will become designated ports. but a Switch can have multiple Designated ports (marked as DP). 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 A layer 2 switched network consists of one or more LAN segments. one for each LAN segment. Each of these LAN segments need to access the Root Bridge. the port used to reach the Root port (RP) is called Designated port (DP). They block network traffic from taking that path so it can only access that segment through the designated port. Once the designated port for a network segment has been chosen. but a Switch can have multiple Designated ports (marked as DP). NDP. Example: Version 2.

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

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

On segment SW1->SW4.. Root Port : RP on each switch is calculated which is the sum of the port costs from each switch to the root switch. port 2 on SW1 has a cost of 0. As such. Example. 2. the path cost from SW2 to root switch is lesser than SW3 to root. Similarly root ports on other switches are selected.e. it should be clear that ports on the Root Bridge will always be Designated Ports for their connected segments. the Designated Port will be port 1 on SW1. 3. port 1 on SW2 becomes the root port. Again. while port 1 on SW2 has a cost of 19. That’s because port 1 on SW1 has a cost of 0. Root Bridge : SW1 is the root bridge because of its lowest MAC-address. lowest path cost will become the root port. 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.0 Copyright © 2002 – 2016 CertExams. while port 1 on SW4 has a cost of 19. thus becoming the decisive factor because the priority is default on all the switches. and they will be in blocking state where frames are neither sent/received. Designated Port : On segment SW1-->SW2. i. 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.com 50 . Any active port that is not a root port or a designated port is a blocked port (BP). Similarly Designated Port is selected on all the other segments of the switch network. the Designated Port will be on SW2. Taking Segment SW2-SW3 as an example. Back Version 2.1. the Designated Port will be port 2 on SW1. Since their port cost is always 0.

2. Instructions: 1. It is possible to disable or enable the Spanning Tree Protocol (STP) when required.com 51 . Version 2. 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. Enter into configuration mode on SW1 2. Also note that the spanning tree commands are made available only on 2950 switch in the simulator. 10. Issue command "spanning-tree vlan <vlan-num> to enable spanning-tree on a specified VLAN 3.2 Lab Exercises using Cisco switches Note: Please refer to the below network for the exercises given in this section.1 : Lab Exercise 1 : Enabling STP Description : This lab exercise demonstrates the necessary commands to enable and disable spanning tree protocol on a switch. Issue no form of the command "spanning-tree vlan <vlan-num> to disable spanning-tree on the VLAN specified.0 Copyright © 2002 – 2016 CertExams.10.

VLAN number 2.2 : Lab Exercise 2 : Configuring Root Switch Description : This lab exercise demonstrates the necessary commands to configure the root switch.6 : Lab Exercise 6 : Verifying STP Not Available in Demo Version.4 : Lab Exercise 4 : Configuring the switch priority of a VLAN Not Available in Demo Version.com 52 . Enter into configuration mode on SW1 2.0 Copyright © 2002 – 2016 CertExams.10.5 : Lab Exercise 5 : Configuring STP Timers Not Available in Demo Version.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. Root bridge priority. Forward Delay) Back 10. Hello Time. 10.3 : Lab Exercise 3 : Configuring Port-Priority Not Available in Demo Version. Instructions: 1.2. 10. Verify the configuration using “show spanning-tree” command. 10.2.2.2. Bridge timers (Max Age. MAC address 3. Version 2. 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.

Use the command “set stp hello-time/forward-time/max-age <value>” to configure the various STP timers on the switch 3. Version 2. ii.com 53 .3. Instructions: 1. Instructions: 1. Forward-Time: Determines how long each of the listening and learning states last before the interface begins forwarding.2 : Lab Exercise 2 : Setting bridge priority on switch Description: This exercise demonstrates the command required to configure switch priority of a VLAN. Issue the command "bridge-priority <priority-value> to configure the switch priority of a VLAN. Verify the configuration using show configuration command.0 Copyright © 2002 – 2016 CertExams.1 : Lab Exercise 1 : Configuring STP Timers Description: This lab exercise demonstrates configuring spanning-tree protocol timers.10.3. 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. Max-Age: Determines the amount of time the switch stores protocol information received on an interface. Enter into configuration mode on SW1 2.3 Lab exercises using Juniper switches 10. iii. Hello-Time: Determines how often the switch broadcasts hello messages to other switches. 10. Enter into configuration mode on SW1 2.

1Q trunking technology rather than ISL.1Q specification and Version 2.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.0 Copyright © 2002 – 2016 CertExams. 10. Per VLAN Spanning Tree Plus (PVST+) provides the same functionality as PVST using 802.3.3 : Lab Exercise 3 : Configuring port priority Not Available in Demo Version. Priority range is 0 to 61440 in increments of 4096. 11. 10.1.4 : Lab Exercise 4 : Verifying STP Not Available in Demo Version.com 54 . Since PVST treats each VLAN as a separate network.1 Lab Exercises using Cisco switches 11. Exercises on Per-VLAN Spanning Tree Protocol and VSTP 11.3. It uses ISL Trunking and allows a VLAN trunk to be forwarding for some VLANs while blocking for other VLANs. 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. PVST+ is an enhancement to the 802.4 : Objective Test 4: Answer the following Questions Not Available in Demo Version.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. default is 32768. Back 10.

Instructions 1. Note: Please refer to the below network for the exercises given in this section. it is enabled for the entire switch and all VLANs and note that this command Version 2. 3. Enter into the global configuration mode on the switch. 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. 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. Enables fast uplink fail over on an access layer switch when dual uplinks are connected. When uplinkfastis enabled.1. 11.2 : 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. Use the command "Spanning-tree uplinkfast" to enable uplinkfast feature on the switch and verify the same using show command. 2.com 55 .is not supported on non-Cisco devices. Also note that the spanning tree commands are made available only on 2950 switch in the simulator.

2. 11. 11. the bridge priority is changed to 49.1. Back 11.1.com 56 . 11. 11.4 : Lab Exercise 3 : Enabling and disabling Portfast feature on a switch Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams. 11.3 Objective Test 5 : Answer the following questions Not Available in Demo Version.5 : Lab Exercise 4 : Enabling PVST+ on a switch Not Available in Demo Version.2. Version 2. 11.1.is not allowed on root bridge switch.6 : Lab Exercise 5 : Implementing Per-VLAN Spanning Tree on a switch network Not Available in Demo Version.2 Lab exercises using Juniper switches 11.152 so that this switch will not be selected as root. When UplinkFast is configured.3 : Lab Exercise 2 : Enabling and disabling Backbonefast feature on a switch Not Available in Demo Version.2 :Lab Exercise 2 : Enabling VSTP on a VLAN using a single VLAN-ID / VLAN-Name Not Available in Demo Version.1.1 : Lab Exercise 1 : Enabling VSTP on all VLANs Not Available in Demo Version.

Guard-band syntax is “Set guard-band <watts>”.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. Range to be set is 0 through 19 where default value is 0 3.0 for EX2200 switches and Default is: 15.0 through 18.6 for EX3200 and EX4200 switches and 0. Enter into PoE hierarchy mode on SW2 that has PoE enabled ports.0 Copyright © 2002 – 2016 CertExams. Verify using show poe interface command that display status of all PoE ports on the switch. Maximum-Power: Set the maximum amount of power that the switch can supply to the PoE port.0 for EX2200 switches 4.2 : Lab Exercise 2 : Configuring power management mode on PoE enabled interface Not Available in Demo Version. 2. Instructions 1. Range to be set is 0.0 through 30. Lab Exercises on PoE (using Juniper switches) 12. 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. Back 12.4 for EX3200 and EX4200 switches and 30.12. Version 2. Maximum power syntax is “Set interface (all | interface-name) maximum-power <watts>”.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.com 57 .

4 : Lab Exercise 4 : Setting power priority on all PoE enabled interfaces Not Available in Demo Version. 13.12. c and d Explanation : The following are some important commands that can be used to edit and review command history buffer.0 Copyright © 2002 – 2016 CertExams.From where the system was loaded from ( booted via flash. Final Exam: Answer the following Questions Not Available in Demo Version. Appendix 14. It will be useful to practice these commands. <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. <ctrl> B : Move backward one character.com 58 . same as using "Right Arrow". d Explanation : Show version command displays the current version of the Cisco IOS.) . 14. 12.2 Answer Keys for Objective Test 2 1. 14. this command displays the following important information: . or tftp etc. Version 2. .) . 2.3 : Lab Exercise 3 : Disabling a PoE interface Not Available in Demo Version.How the system was started (power on etc.1 : Answer keys for Objective Test 1 Not Available in Demo Version.How long the switch has been up (length of time since boot-up).The contents of configuration register. same as using "Left Arrow". In addition.

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

Workgroup Switch-Layer 2 Device 3. 14. Icons used in the Manual 1. Serial-Icon to represent a Layer 1 or 2 cable Version 2. 14. 14.com 60 .14. Router-Layer 3 Device 2.4 Answer Keys for Objective Test 4 Not Available in Demo Version.0 Copyright © 2002 – 2016 CertExams. 15. PC/Workstation 4.6 Answer Keys for Final Exam Not Available in Demo Version.5 Answer Keys for Objective Test 5 Not Available in Demo Version.3 Answer Keys for Objective Test 3 Not Available in Demo Version.

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