Tài liệu Troubleshooting VTP (Troubleshooting LAN Switches) docx

1-5 Semester 8 Internetwork Troubleshooting v1.0 - Lab 5.1.3 Copyright  2001, Cisco Systems, Inc.

Lab 5.1.3 Troubleshooting VTP (Troubleshooting LAN Switches)

Fa 2/3 Fa 0/12

Fa 0/1

Trunk 802.1q

Crossover Connection

ALSwitch

2900XL-Ent

4006 L3

VLAN 10 Client

Objective

VLAN Trunk Protocol (VTP) reduces administration in switched networks.

When you configure a new VLAN on one VTP server, the VLAN is distributed

through all switches in the domain. This reduces the need of configuring the

same VLAN everywhere. VTP is a Cisco-proprietary protocol that is available

on most of the Cisco Catalyst Family products. In this lab you will troubleshoot

some basic VLAN trunking problems with VTP (VLAN Trunking Protocol).

Scenario

This is not part of the International Travel Agency network.

As the Enterprise Network Administrator, you have a large switched network

that is all in the same VTP domain. Your network administrator added a new

2900XL-Enterprise switch to the network. The first connected client to the new

switch is from the Accounting Department (VLAN 10). He indicates immediately

that he is not able to reach any network resources. The administrator indicated

that he did issue the command “switchport access vlan 10” on FastEthernet

port 0/1, which is the port the Accounting member is connected to, and also

verified that both the links (FastEthernet 0/1 and FastEthernet 0/12) indicate a

green connection light on the 2900. FastEthernet 0/12 is designated as the up￾link trunking port.

Lab Tasks

Cable the lab as shown in the diagram.

Clear the DLRouter configuration using the following commands:

Router#erase start

Erasing the nvram filesystem will remove all files! Continue? [confirm]y[OK]

Erase of nvram: complete

Router#reload

Proceed with reload? [confirm]y

Clear the DLSwitch configuration using the following commands: