Trunking changes the formatting of the packets. The ports need to be in agreement as to which format is being used to transmit data on the trunk or no data will be passed. If there is different trunking encapsulation on the two ends of the link they will not able to communicate. A similar situation will occur if one of the ports is configured in trunking mode, unconditionally, and the other one as in access mode, unconditionally. When managing a switch, the Management Domain is always VLAN 1. The Network Administrator's workstation must have access to a port in the VLAN 1 Management Domain. All ports. | Cisco SrsTEMS Lab Trunking with ISL Switch Designation Switch Name Enable Enable VTY VLAN 1 IP Subnet Secret and Console Address Mask Password Passwords VLAN Names Switch Port and Numbers Assignments Switch 1 Switch A class cisco VLAN 1 Native VLAN 10 Accounting VLAN 20 Marketing VLAN 30 Engineering faO 2 - 0 3 faO 4 - 0 6 faO 7 - 0 9 fa0 10-0 12 Switch 2 Switch B class cisco VLAN 1 Native VLAN 10 Accounting VLAN 20 Marketing VLAN 30 Engineering faO 2 - 0 3 faO 4 - 0 6 faO 7 - 0 9 faO 1O - 0 12 Straight-through cable ------------ Serial cable 7 Console Rollover .Crossover cable - Objective Create a basic switch configuration and verify it. Create multiple VLANs name them and assign multiple member ports to them. Create an ISL trunk line between the two switches to allow communication between paired VLANs. Test the VLANs functionality by moving a workstation from one VLAN to another. Background Preparation Note The use of Catalyst 2950 switches is not appropriate for this lab as they only support trunking. Trunking changes the formatting of the packets. The ports need to be in agreement as to which format is being used to transmit data on the trunk or no data will be passed. If there is different trunking encapsulation on the two ends of the link they will not able to communicate. A similar situation will occur if one of the ports is configured in trunking mode unconditionally and the other one as in access mode unconditionally. When managing a switch the Management Domain is always VLAN 1. The Network Administrator s workstation must have access to a port in the VLAN 1 Management Domain. All ports are assigned 1 - 8 CCNA 3 Switching Basics and Intermediate Routing v - Lab Copyright 2003 Cisco Systems Inc. to VLAN 1 by default. This lab will also help demonstrate how VLANs can be used to separate traffic and reduce broadcast domains. Cable a network similar to the one in the diagram. The .
