Changing Vc Subranges; Adding Vc Subranges - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13 Configuration Manual

JunosE 11.3.x Link Layer Configuration Guide

Changing VC Subranges

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Because the shutdown command removes the dynamic ATM 1483 subinterface from
the router, issuing a subsequent no version of this command has no effect; that is, it
does not restart the disabled subinterface.
See shutdown.
Changing VC subranges within a bulk-configured VC range includes the following tasks:
Adding new VC subranges to an existing VC range
Removing VC subranges from an existing VC range
Modifying a VC subrange by shortening or expanding the subrange values
Merging multiple VC subranges belonging to an existing VC range
Changing the administrative state of VC subranges
The following sections describe how to perform these tasks.

Adding VC Subranges

You can add a new VC subrange to an existing VC range only when the new subrange
does not overlap with any existing subrange. Any overlap causes the addition to fail.
You can add multiple subranges to an existing VC range simultaneously. However, the
entire operation fails if even one of the new subranges overlaps with an existing subrange.
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
To add subranges to this bulk-configured VC range, you can choose either of the following
methods. Each method adds a new subrange (4, 4, 401, 450) to the existing VC range,
test.
Specify one new subrange at a time.
host1(config-if)#atm bulk-config test vc-range 4 4 401 450
Specify the new subrange and all the existing subranges. If you use this method, all
the existing subranges and their order must match exactly, or the operation fails.
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 vc-range 4 4 401 450
The following operation fails because the order of subranges does not match the
existing order.
host1(config-if)#atm bulk-config test vc-range 2 2 201 250 vc-range 1 1 101 150 vc-range
5 5 501 550 vc-range 3 3 301 350 vc-range 4 4 401 450
vc-range 6 6 601 650
You can create a placeholder VC range by specifying a VC range name without specifying
any subrange parameters. This VC range has no circuit reservation, but you can assign a
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