Huawei NetEngine80E Configuration Manual - Reliability page 134

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Using default routes simplifies user configuration but requires highly reliable performance of
the default gateway. Adding gateways can improve reliability. This method is available only
when hosts are able to select a route to other egress gateways. Hosts on a LAN cannot run a
dynamic routing protocol and cannot select a route among multiple gateways.
Figure 4-6
preceding problem.
Figure 4-6 Schematic diagram for a VRRP backup group
PCA
Gateway:10.1.1.10
IP Address:10.1.1.3/24
PCA
Gateway:10.1.1.10
IP Address:10.1.1.3/24
A VRRP backup group works in master/backup mode. If the master NE80E/40E fails, a backup
NE80E/40E is used to forward data, improving network reliability.
After a VRRP backup group is configured, you can configure priorities for group members,
packet attributes, the interval at which packets are sent, and smooth VRRP switching, and enable
the function that pings the virtual IP address. These configurations can improve the performance
of the VRRP backup group.
Pre-configuration Tasks
Before configuring basic functions of a VRRP IPv4 backup group, complete the following task:
Issue 02 (2014-09-30)
shows a network diagram for a VRRP backup group that is used to address the
10.1.1.2/24
SwitchA
10.1.1.1/24
SwitchA
NOTE
The GigabitEthernet,Ethernet, virtual Ethernet (VE),Eth-Trunk, VLANIF and the GE sub-interface support
VRRP.
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Virtual IP Address
Master
10.1.1.10
Backup
10.1.1.10
Virture Router
4 VRRP Configuration
Network
Network
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