Assigning A Layer 2 Lan Interface To A Vlan; Configuring The Internal Vlan Allocation Policy - Cisco 7604 Configuration Manual

Configuring VLANs

Assigning a Layer 2 LAN Interface to a VLAN

A VLAN created in a management domain remains unused until you assign one or more LAN ports to
the VLAN.
Note Make sure you assign LAN ports to a VLAN of the appropriate type. Assign Ethernet ports to
Ethernet-type VLANs.
To assign one or more LAN ports to a VLAN, complete the procedures in the
Interfaces for Layer 2 Switching" section on page

Configuring the Internal VLAN Allocation Policy

For more information about VLAN allocation, see the
The internal VLAN allocation policy is applied only following a reload.
Note
To configure the internal VLAN allocation policy, perform this task:
Command
Step 1
Router(config)# vlan internal allocation policy
{ascending | descending}
Router(config)# no vlan internal allocation
policy
Step 2
Router(config)# end
Step 3
Router# reload
When you configure the internal VLAN allocation policy, note the following information:
•
•
This example shows how to configure descending as the internal VLAN allocation policy:
Router# configure terminal
Router(config)# vlan internal allocation policy descending
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
14-12
Enter the ascending keyword to allocate internal VLANs from 1006 and up.
Enter the descending keyword to allocate internal VLAN from 4094 and down.
10-6.
"VLAN Ranges" section on page
Purpose
Configures the internal VLAN allocation policy.
Returns to the default (ascending).
Exits configuration mode.
Applies the new internal VLAN allocation policy.
You do not need to enter the reload command
Caution
immediately. Enter the reload command
during a planned maintenance window.
Chapter 14 Configuring VLANs
"Configuring LAN
14-2.
OL-4266-08