H3C Technologies H3C S3600 Series Switches - Manual (Page 620)

4-2
To do… Use the command… Remarks
Enter system view system-view —
Enable the Resilient ARP
function
resilient-arp enable
Required
Enabled by default.
Configure the VLAN interface
through which Resilient
packets are sent
resilient-arp interface
vlan-interface vlan-id
Optional
By default, Resilient ARP
packets are sent through the
interface of VLAN 1
(VLAN-interface 1).
Display information about the
Resilient ARP state display resilient-arp [ unit
unit-id ]
Available in any view
Note that the above configuration specifies the VLAN interface through which Resilient packets are sent,
whereas all the VLAN interfaces can receive Resilient ARP packets.
Resilient ARP Configuration Example
Network requirements
There are four units in an IRF network: unit 1 to unit 4. Unit 1 and unit 3 connect to another switch
(Switch) through link aggregation. If the connection between unit 1 and unit 3 and the connection
between unit 2 and unit 4 break off, there will be two Layer 3 switches with the same configuration in the
network. In this case, problems occur in packets forwarding between the fabric and the Switch. You can
enable the Resilient ARP function for the fabric to avoid the problems. For security concerns, you need
to enable MD5 authentication function. The ports through which unit 3 and unit 4 connect to the Switch
belong to VLAN 2.
Network diagram
Figure 4-1 Network diagram for Resilient ARP
Configuration procedure
# Enable the Resilient ARP function.
system-view
[Sysname] resilient-arp enable
# Configure the Resilient ARP packets to be sent through the VLAN-interface 2.