R3303-HP 6600/HSR6600 Routers High Availability Configuration Guide

159
Ste
p
Command Remarks
3. Enable ARP entry backup for
the specified IPv4 VRRP
group.
vrrp vrid virtual-router-id
backup-arp
By default, ARP entry backup is
disabled.
Configuring VRRP packet attributes
Configuration prerequisites
Before you configure the relevant attributes of VRRP packets, create a VRRP group and configure a virtual
IP address for it.
Configuration guidelines
• You might configure different authentication modes and authentication keys for the VRRP groups on
an interface. However, the members of the same VRRP group must use the same authentication
mode and authentication key.
• Excessive traffic might cause a backup to trigger a change of its status because the backup does not
receive any VRRP advertisements for a specified period of time. To solve this problem, increase the
time interval to send VRRP advertisements.
• Configuring different intervals for sending VRRP advertisements on the routers in a VRRP group
might cause a backup to trigger a change of its status. This is because the backup does not receive
any VRRP advertisements for a specified period of time. To solve this problem, configure the same
interval for sending VRRP advertisements on each router in the VRRP group.
• After you specify an interface as the source interface for sending VRRP packets, this interface,
instead of the interface where the VRRP group resides, sends and receives VRRP packets. If you
specify the interface where the VRRP group resides as the source interface for sending VRRP packets,
the configuration does not take effect.
Configuration procedure
To configure VRRP packet attributes:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter the specified interface
view.
interface interface-type
interface-number
N/A
3. Configure the authentication
mode and authentication key
when the VRRP groups send
and receive VRRP packets.
vrrp vrid virtual-router-id
authentication-mode { md5 |
simple } [ cipher ] key
Optional.
Authentication is not performed by
default.
4. Configure the time interval for
the master in the VRRP group
to send VRRP advertisements.
vrrp vrid virtual-router-id timer
advertise adver-interval
Optional.
1 second by default.
5. Specify the source interface
for sending VRRP packets.
vrrp vrid virtual-router-id
source-interface interface-type
interface-number
Optional.
Not specified by default.