Huawei Quidway S3700 Series Configuration Manual page 331

Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
Context
Do as follows on each switch of a backup group:
Perform the following step as required to configure VRRP for IPv4 or VRRP for IPv6.
Procedure
l
Issue 01 (2011-10-26)
For VRRP for IPv4, run the following commands:
1. Run:
system-view
The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
3. Run:
vrrp vrid virtual-router-id virtual-ip virtual-address
A backup group is created and its virtual IP address is specified.
NOTE
l On the S3700, VRRP functions can be configured only on VLANIF interfaces.
l The virtual IP address must be in the same network segment as the IP address of the
VLANIF interface.
l Virtual IP addresses of backup groups must be different.
l Both ends of the same backup group must be configured with the same virtual router IDs.
l Virtual router IDs on different interfaces can be the same.
When you assign the first virtual IP address to a VRRP backup group, the system
creates this backup group. Then, when you assign another virtual IP address to the
backup group, the system adds this address into the virtual IP address list of this backup
group.
For users who require equivalent VRRP reliability, a backup group can be configured
with multiple virtual IP addresses. Different addresses serve different user groups.
This is easy to manage and can prevent users' default gateway addresses from varying
with the VRRP configuration. A maximum number of 16 virtual IP addresses can be
configured for a backup group.
For a VRRP backup working in load balancing mode, you need to repeat the procedure
to configure multiple backup groups on an interface. At least two backup groups are
required on an interface. Backup groups are identified by VRIDs and their virtual IP
addresses cannot be identical.
NOTE
You can configure up to 24 VRRP groups on each interface of the S3700. To configure 24
VRRP groups on an interface, you need to set the CPCAR of VRRP packets to 256 kbps.
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7 VRRP and VRRP6 Configuration
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