Cisco Catalyst X4232 Installation And Configuration Note page 55

Option 1: Configuring Interfaces as Trunks (Recommended Option)
This procedure shows you how to enable VLAN trunking on the two internal Gigabit Ethernet
interfaces. Enabling VLAN trunking requires you to configure the internal Gigabit Ethernet interfaces
from the supervisor engine console as well as from the Layer 3 Services module console. When you
enable trunking, you configure a subinterface for each allowed VLAN configured on the Catalyst 4000
Layer 3 Services module trunk.
Perform the following steps to enable VLAN trunking on the interfaces (in this procedure, the
Catalyst 4000 Layer 3 Services module is in slot 2):
Use the set trunk mod_num/port_num command to enable trunking and specify the encapsulation type
Step 1
on the interface from the supervisor engine prompt:
Cat4000> (enable) set vlan 5 2/1
Vlan 5 modified.
Cat4000> (enable) set trunk 2/1 dot1Q 1-5
Port(s) 2/1 trunk mode set to nonegotiate.
Port(s) 2/1 trunk type set to dot1Q.
Cat4000> (enable) set vlan 6 2/2
Vlan 6 modified.
Cat4000> (enable) set trunk 2/2 dot1Q 6-10
Port(s) 2/2 trunk mode set to nonegotiate.
Port(s) 2/2 trunk type set to dot1Q.
Cat4000> (enable)
Use the session mod_num command to access the Layer 3 Services module console prompt:
Step 2
Cat4000> (enable) session 2
Trying Router...
Connected to Router.
Escape character is `^]'.
router>
a.
b.
Use the interface command to configure subinterfaces for each VLAN at the Catalyst 4000 Layer 3
Step 3
Services module console prompt.
78-10164-03
At the EXEC prompt, enter enable mode:
router> enable
router#
At the privileged EXEC prompt, enter global configuration mode:
router# configure terminal
router(config)#
Installation and Configuration Note for the Catalyst 4000 Layer 3 Services Module
Configuring the Module for InterVLAN Routing
55