Vswitch virtual serial port configuration VLAN Trunk

Role of the switch serial port (Trunk:

The following two encapsulation types can be used for relay over Ethernet through the serial port of the switch:

-IEEE 802.1Q

-ISL (Inter Switch Link, Cisco private)

Procedure

Step 1: Add a VLAN to the vswitch

Switch1 # vlan database

Switch1 (vlan) # vlan 2

Switch1 (vlan) # vlan 3

Switch1 (vlan) # exit

Step 2: add the interface to the corresponding VLAN

Swital # config terminal

Switch1 (config) # interface fastEthernet 0/1

Switch1 (config-if-range) # switchport access vlan 2

Switch1 (config) # interface fastEthernet 0/2

Switch1 (config-if-range) # switchport access vlan 3

Step 3: configure the port for interconnection between vswitches as a serial port (Trunk)

Switch1 (config) # interface f0/15

Switch1 (config-if-range) # switchport mode trunk

Other commands

Remove VLAN:

Switch (config-if) # switchport trunk allowed vlan removevlan-list

Add VLAN:

Switch (config-if) # switchport trunk allowed vlan add vlan-list

View port status:

Switch # show interface f0/15 switchport

Check the list of allowed VLANs on the relay Port:

Switch # show interface-id switchport

View VLAN information:

Switch # show vlan brief

View Configuration:

Switch # show running-config