Enabling Arp Fast Update For Mac Address Moves - H3C S7500X Series Configuration Manual

Step
1. Enter system view.
2. Enable MAC address move
notifications and optionally
specify a MAC move
detection interval.
3. (Optional.) Set MAC
address move suppression
parameters.
4. Enter interface view.
5. Enable MAC address move
suppression.
Enabling ARP fast update for MAC address
moves
ARP fast update for MAC address moves allows the device to update an ARP entry immediately after
the outgoing interface for a MAC address changes. This feature ensures data connection without
interruption.
As shown in
When the AP to which the user connects changes, the switch updates the ARP entry for the user
immediately after it detects a MAC address move.
Command
system-view
mac-address notification
mac-move [ interval interval ]
mac-address notification
mac-move suppression
{ interval interval | threshold
threshold }
•
•
mac-address notification
mac-move suppression
Figure 4, a mobile user laptop accesses the network by connecting to AP 1 or AP 2.
Enter Layer 2 Ethernet
interface view:
interface interface-type
interface-number
Enter Layer 2 aggregate
interface view:
interface
bridge-aggregation
interface-number
12
Remarks
N/A
By default, MAC address move
notifications are disabled.
If you do not specify a detection
interval, the default setting of 1
minute is used.
After you execute this command, the
system sends only log messages to
the information center module. If the
device is also configured with the
snmp-agent trap enable
mac-address command, the
system also sends SNMP
notifications to the SNMP module.
By default, the suppression interval
is 30 seconds, and the suppression
threshold is 3.
N/A
By default, MAC address move
suppression is disabled.