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Changing the Administrative State of VLAN Subranges

VLAN subranges have an administrative state that enables you to remove dynamic VLAN subinterfaces on various subranges that belong to a single VLAN range. This functionality is important because subrange removal requires that no dynamic VLAN subinterfaces exist for any circuit on that subrange. The removal operation fails if any such interfaces exist.

By default, the administrative state of a VLAN subrange is up. When you change the administrative state to down by using the vlan bulk-config shutdown command, the router deletes all dynamic VLAN subinterfaces on the affected subranges. You can use the show vlan subinterface command to monitor the progress of the removal of all dynamic VLAN subinterfaces for the specified subrange.

No additional dynamic VLAN subinterfaces can be created for the subrange until you restore the administrative state to up by using the no vlan bulk-config shutdown command.

The following example specifies the original VLAN subranges.



host1(config-if)#vlan bulk-config test svlan-range
101 150 1 1 

 svlan-range
201 250 2 2 svlan-range 501 550 5 5 svlan-range 301 350 3 3

You cannot specify a partial subrange; the specified subrange must exactly match a subrange that has already been configured. The following command changes the administrative state of the second subrange (S-VLAN IDs 201–250 and VLAN ID 2) to down. The router removes all dynamic interface columns built on any of the VLAN IDs or S-VLAN IDs in this subrange. No additional dynamic VLAN subinterfaces can be created until you change the administrative state to up.



host1(config-if)#vlan bulk-config test shutdown
svlan-range 201 250 2 2

The following command changes the administrative state of this same VLAN subrange to up.



host1(config-if)#no vlan bulk-config test
shutdown svlan-range 201 250 2 2

You can also change the administrative state of VLAN subranges that are based on agent-circuit-identifier information. For example, assume that the following command is issued to configure a VLAN subrange based on agent-circuit-identifier information:



host1(config-if)#vlan bulk-config myNewBulkConfig
svlan-range 50 100  agent-circuit-identifier

The following command changes the administrative state of this same VLAN subrange to down:



host1(config-if)#vlan bulk-config myNewBulkConfig
shutdown svlan-range 50 100  agent-circuit-identifier

You can change the administrative state of all subranges in a bulk-configured VLAN range at the same time by issuing the command without specifying any subranges. When you shut down a named bulk configuration, all VLAN ranges belonging to that bulk configuration, including those based on double-tagged S-VLANs or agent-circuit-identifier information, are disabled.

The following command shuts down all four subranges belonging to the named VLAN range, test, regardless of their current state.



host1(config-if)#vlan bulk-config test shutdown

The time required for the router to complete an administrative state change depends on the number of VLAN subranges configured.

vlan bulk-config

Use to create a bulk-configured VLAN range on a static VLAN major interface for use by a dynamic VLAN subinterface.
For detailed information about how to use this command, see vlan bulk-config.
Examplehost1(config)#vlan bulk-config test1 svlan-range 200 250 2
Use the no version to remove the specified VLAN range from the VLAN major interface, to remove the specified subranges from the specified VLAN range, or to remove all subranges from the specified VLAN range. The no version also removes any overriding profile assignments for VLAN IDs or S-VLAN IDs within the deleted VLAN range or VLAN subrange.
See vlan bulk-config.

vlan bulk-config modify

Use to expand or shorten the range of the specified VLAN subrange. You can modify only a single specific subrange at a time.
You can expand a subrange if none of the added VLAN IDs or S-VLAN IDs overlap with any other subrange. You can shorten a subrange if none of the dropped VLAN IDs or S-VLAN IDs have existing dynamic VLAN subinterfaces. You can also modify an existing subrange by configuring it to use agent-circuit-identifier information rather than a range of VLAN IDs.
Modifying a subrange so that it completely includes at least one other subrange from within the same VLAN range effectively merges the subranges. Each subrange that is merged with another frees up a subrange for subsequent configuration. The subranges that are merged do not need to be adjacent to each other.
The router retains any overriding profiles assigned to a subrange if the assignment falls within the modified subrange. If the assignment falls outside of the newly modified subrange, the router drops the overriding profile assignment. If two subranges are merged, the router retains overriding profiles that were assigned to the separate subranges and applies the overriding profiles to the newly merged subrange.
Examplehost1(config-if)#vlan bulk-config test modify svlan-range 200 250 1 3
There is no no version.
See vlan bulk-config modify.

vlan bulk-config shutdown

Use to administratively disable (shut down) a specified VLAN subrange or all subranges in a VLAN range. The administrative state of a VLAN subrange is enabled by default.
Disabling the VLAN subrange deletes all dynamic VLAN subinterfaces on the affected subranges. You can use the show vlan subinterface command to monitor the progress of the removal of all dynamic VLAN subinterfaces for the specified subrange.
No dynamic VLAN subinterfaces can subsequently be created for the subrange until you restore the administrative state to enabled by using the no vlan bulk-config shutdown command.
Examplehost1(config-if)#vlan bulk-config test shutdown svlan-range 200 250 1 3
Use the no version to enable the specified VLAN subrange or all subranges in a VLAN range.
See vlan bulk-config shutdown.

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