Set Ndp Holdtime; Set Ndp Timer; Display And Debug Ndp - Huawei Quidway S3500 Series Operation Manual

Operation Manual - Integrated Management
Quidway S3500 Series Ethernet Switches

2.2.4 Set NDP Holdtime

The NDP holdtime specifies how long the adjacent node can keep the local node
information. The adjacent device knows the holdtime from the received NDP packet
and will discard the packet when it expires.
Perform the following configuration in System view.
Table 2-3 Set NDP Holdtime
Set NDP Holdtime
Restore the default NDP holdtime.
Note that NDP holdtime is supposed to be longer than the NDP timer (described in the
following section). Otherwise, NDP information table will be unstable.
By default, NDP is hold for up to 180 seconds.

2.2.5 Set NDP Timer

The NDP information of the adjacent nodes shall be updated frequently to guarantee
the timely updating for local information. You can use the following command to decide
how often the NDP information will be updated.
Perform the following configuration in System view.
Table 2-4 Set NDP timer
Set NDP timer
Set the NDP timer back to the default setting
Note that NDP timer is supposed to be shorter than the NDP holdtime (described in the
previous section). Otherwise, NDP information table will be unstable.
By default, NDP is transmitted every 60 seconds.

2.2.6 Display and Debug NDP

After the above configuration, execute display command in any view to display the
running of the NDP configuration, and to verify the effect of the configuration. Execute
reset command in user view to clear the statistics of NDP module. Execute debugging
command in user view to debug the NDP module.
Operation
Operation
Huawei Technologies Proprietary
2-6
Chapter 2 HGMP V2 Configuration
Command
ndp timer aging aging-in-secs
undo ndp timer aging
Command
ndp timer hello seconds
undo ndp timer hello