R3303-HP 6600/HSR6600 Routers High Availability Configuration Guide

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configured to terminate packets from many VLANs, there will be many VRRP advertisements to be
transmitted through the subinterfaces, and the performance of the router will be seriously affected.
To solve this problem, you can configure a VRRP control VLAN to allow the master to send VRRP
advertisements only within the control VLAN when the subinterfaces configured with VLAN termination
are disabled from transmitting broadcast or multicast packets.
VRRP control VLAN includes the following categories:
• Specifying a single VLAN tag:
For subinterfaces configured with ambiguous Dot1q termination, this type of control VLAN should
be specified.
• Specifying both inner and outer VLAN tags:
For subinterfaces configured with ambiguous QinQ termination, this type of control VLAN should
be specified.
You need to specify a control VLAN only for a Layer 3 Ethernet subinterface and Layer 3 aggregation
subinterface configured with ambiguous VLAN termination.
When VRRP operates in load balancing mode, you cannot specify the VRRP control VLAN.
If you specified the VRRP control VLAN, to update MAC address entries on devices in the VLAN
terminated ambiguously after an active/standby switchover, use the arp send-gratuitous-arp command
to enable the routers in the VRRP group to periodically send gratuitous ARP packets. For more information
about the arp send-gratuitous-arp command, see Layer 3—IP Services Command Reference.
For more information about VLAN termination, see Layer 2—LAN Switching Configuration Guide.
To specify the VRRP control VLAN:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
• Enter Layer 3 Ethernet
subinterface view:
interface interface-type
interface-number.subnumb
er
• Enter Layer 3 aggregation
subinterface view:
interface
route-aggregation
interface-number.subnumb
er
Use either command.
3. Specify a VRRP control VLAN.
• Specify a VRRP control
VLAN for the subinterface
configured with ambiguous
Dot1q termination:
vrrp dot1q vid vlan-id
• Specify a VRRP control
VLAN for the subinterface
configured with ambiguous
QinQ termination:
vrrp dot1q vid vlan-id
secondary-dot1q
secondary-vlan-id
Use either command.
By default, no VRRP control VLAN is
specified for the subinterface
configured with VLAN termination.
That is, the master sends VRRP
advertisements within all VLANs whose
VLAN packets are configured to be
terminated by the subinterface.