display arp track
Function
The display arp track command displays changes of outbound interfaces in ARP entries learned by a VLANIF interface.
Usage Guidelines
Usage Scenario
If the outbound interfaces change in ARP entries learned by a VLANIF interface, traffic may be interrupted. In this case, run the display arp track command to check changes of outbound interfaces and time of changes.
Precautions
Outbound interfaces in dynamic ARP entries learnt by the VLANIF interface change to other interfaces.
No outbound interface is specified in the static ARP entries. The outbound interface changes to other interfaces.
Dynamic ARP entries or static ARP entries in which no VLAN ID or outbound interface is specified are deleted.
ARP entries change on a non-VLANIF interface.
New ARP entries are learnt.
The VLAN ID and outbound interface are manually specified in static ARP entries.
Example
# Display changes of ARP entries.
<AC6605> display arp track
Operate Flags: M - Modify, D - Delete
--------------------------------------------------------------------------------
Op IP-Address MAC-Address VLAN Old-Port New-Port System-Time
--------------------------------------------------------------------------------
D 192.168.41.254 dcd2-fc9d-0bb0 900 GE0/0/1 11-16 13:27:12+
08:00
D 192.168.40.248 dcd2-fc9d-0bb0 400 GE0/0/1 11-16 13:28:39+
08:00
D 192.168.40.249 dcd2-fc04-b500 400 GE0/0/1 11-16 13:28:47+
08:00
D 192.168.40.250 60de-4476-e360 400 GE0/0/1 11-16 13:48:59+
08:00
D 192.168.40.248 dcd2-fc9d-0bb0 400 GE0/0/1 11-16 13:53:34+
08:00
D 192.168.40.247 dcd2-fc9a-1f00 400 GE0/0/1 11-16 15:32:25+
08:00
D 192.168.40.243 dcd2-fc04-b0a0 400 GE0/0/1 11-16 20:02:46+
08:00
D 192.168.40.200 0000-5e00-0101 400 GE0/0/1 11-19 02:20:05+
08:00
Item |
Description |
|---|---|
Op |
Operation identifier.
|
IP-Address |
IP address in the ARP entry. |
MAC-Address |
MAC address in the ARP entry. |
VLAN |
ID of the VLAN to which the VLANIF interface belongs. |
Old-Port |
Original outbound interface in the ARP entry. |
New-Port |
New outbound interface in the ARP entry. |
System-Time |
System time when the outbound interface changes. |
