Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Configuration Manual

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Changing the Administrative State of VC Subranges
VC subranges have an administrative state that enables you to remove dynamic ATM
1483 subinterfaces on various subranges that belong to a single VC range. This
functionality is important because subrange removal requires that no dynamic ATM
1483 subinterfaces exist for any circuit on that subrange. The removal operation
fails if any such interfaces exist.
By default, the administrative state of a VC subrange is up. When you change the
administrative state to down by using the
atm bulk-config shutdown command,
the router deletes all dynamic ATM 1483 subinterfaces on the affected subranges.
You can use the
show atm subinterface command or the show atm vc command
to monitor the progress of the removal of all dynamic ATM 1483 subinterfaces for
the specified subrange.
No additional dynamic ATM 1483 subinterfaces can be created for the subrange until
you restore the administrative state to up by using the
no atm bulk-config shutdown
command.
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
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 (2, 2, 201, 250) to down. The router
removes all dynamic interface columns built on any of the circuits in this subrange.
No additional dynamic ATM 1483 subinterfaces can be created until you change the
administrative state to up.
host1(config-if)# atm bulk-config test shutdown vc-range 2 2 201 250
The following command changes the administrative state of this same VC subrange
to up.
host1(config-if)# no atm bulk-config test shutdown vc-range 2 2 201 250
You can change the administrative state of all subranges in a VC range at the same
time by issuing the command without specifying any subranges. The following
command shuts down all four subranges belonging to the named VC range, test,
regardless of their current state.
host1(config-if)# atm bulk-config test shutdown
The time required for the router to complete an administrative state change depends
on the number of VC subranges configured.
atm bulk-config
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Configuring ATM 1483 Dynamic Subinterfaces
JUNOSe 11.1.x Link Layer Configuration Guide