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Modifying VC Subranges

You can shorten or expand a subrange by modifying the subrange values of a VC range. You can expand a subrange if none of the circuits added overlap with any other subrange. You can shorten a subrange if none of the circuits dropped have existing dynamic ATM 1483 subinterfaces.

You can modify only a single specific subrange at a time. The following example specifies the original VC subranges.



host1(config-if)#atm bulk-config test vc-range
1 1 101 150 vc-range 2 2 201 250  vc-range
5 5 501 550 vc-range 3 3 301 350

The following command modifies the second subrange from (2, 2, 201, 250) to
(2, 3, 210, 230).



host1(config-if)#atm bulk-config test modify
vc-range 2 3 210 230

The router retains any overriding profiles assigned to a subrange after you modify the subrange if the override assignment still falls within the modified subrange. If the assignment falls outside of the newly modified subrange, the router drops the overriding profile assignment.

You cannot modify a subrange at the same time you are adding or removing a subrange. If the new modified values for a subrange partially overlap with another subrange, the operation fails and the router displays an error message.

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