ADTRAN AOS Version R10.1.0 Command Reference Manual page 2774

Command Reference Guide
ipv6 nd purge-timer <value>
Use the ipv6 nd purge-timer command to specify the maximum amount of time an unused Internet
Protocol version 6 (IPv6) neighbor entry remains in the neighbor cache. This command applies to
interfaces in either host or router mode. Use the no form of this command to return the purging interval to
the default value.
Syntax Description
<value>
Default Values
By default, idle (STALE) neighbor cache entries are cleared after 1440 minutes (24 hours).
Command History
Release 18.1
Functional Notes
This command applies to interfaces in either router or host mode. A neighbor entry is typically purged
when neighbor unreachability detection (NUD) is invoked and the neighbor is determined to no longer be
reachable. However, NUD is not performed on idle (STALE) neighbor entries, so this command provides a
method for purging unused entries after a specified amount of time.
Usage Examples
The following example specifies that idle neighbor entries in the neighbor cache are removed after
800 minutes:
(config)#interface vlan 1
(config-vlan 1)#ipv6 nd purge-timer 800
60000CRG0-35E
Specifies the neighbor cache entry storage time in minutes. Valid range is
10 to 1440 minutes.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
VLAN Interface Command Set
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