R21xx-HP FlexFabric 11900 Layer 3 IP Services Command Reference
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undo ipv6 neighbor stale-aging
Default
The aging timer for ND entries in stale state is 240 minutes.
Views
System view
Predefined user roles
network-admin
Parameters
aging-time: Specifies the aging timer for ND entries in stale state, in the range of 1 to 1440 minutes.
Usage guidelines
ND entries in stale state have an aging timer. If an ND entry in stale state is not refreshed before the timer
expires, it moves to the delay state. If it is still not refreshed in 5 seconds, the ND entry moves to the probe
state, and the device sends an NS message for detection for a maximum of three times. If no response is
received, the device deletes the ND entry.
Examples
# Set the aging timer for ND entries in stale state to 120 minutes.
<Sysname> system-view
[Sysname] ipv6 neighbor stale-aging 120
ipv6 neighbors max-learning-num
Use ipv6 neighbors max-learning-num to set the maximum number of dynamic neighbor entries that an
interface can learn, to prevent the interface from occupying too many neighbor table resources.
Use undo ipv6 neighbors max-learning-num to restore the default.
Syntax
ipv6 neighbors max-learning-num number
undo ipv6 neighbors max-learning-num
Default
An interface can learn a maximum of 8192 dynamic neighbor entries.
Views
Layer 2 interface view, Layer 3 interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
number: Specifies the maximum number of dynamic neighbor entries that an interface can learn, in the
range of 1 to 8192.










