H3C Technologies H3C S5560 Series Switches - Manual (Page 48)

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Step Command Remarks
5. Enter interface view.
• Enter Layer 2 Ethernet interface view:
interface interface-type
interface-number
• Enter Layer 2 aggregate interface
view:
interface bridge-aggregation
interface-number
N/A
6. Enable MAC address
move suppression. mac-address notification mac-move
suppression
By default, MAC address move
suppression is disabled.
7. Return to system view. quit N/A
8. Enable ARP fast update
for MAC address moves. mac-address mac-move fast-update
This task is required when you
enable MAC address move
suppression.
By default, ARP fast update for
MAC address moves is
disabled.
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
Figure 5 , a mobile user Laptop accesses the network by connecting to AP 1 or AP 2. 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.
Figure 5 ARP fast update application scenario
To enable ARP fast update for MAC address moves:
Step Command Remarks
1. Enter system view. system-view N/A