VLAGs with VRRP
Configure VLAG Peer 1
1. Configure VLAG tier ID and enable VLAG globally.
2. Configure appropriate routing.
3. Configure a server‐facing interface.
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VRRP (see "Virtual Router Redundancy Protocol" on page
conjunction with VLAGs and LACP‐capable devices to provide seamless
redundancy.
Figure 20. Active‐Active Configuration using VRRP and VLAGs
Internet
Note: In a multi‐layer environment, configure VRRP separately for each layer. We
recommend that you configure VRRP only on the tier with uplinks. See
"Configuring VLAGs in Multiple Layers" on page
CN 4093(config)# vlag tier-id 10
CN 4093(config)# vlag enable
CN 4093(config)# router ospf
CN 4093(config-router-ospf)# area 1 area-id 0.0.0.1
CN 4093(config-router-ospf)# enable
CN 4093(config-router-ospf)# exit
Although OSPF is used in this example, static routing could also be deployed. For
more information, see "OSPF" on page 467 or "Basic IP Routing" on page
CN 4093(config)# interface ip 3
CN 4093(config-ip-if)# ip address 10.0.1.10 255.255.255.0
CN 4093(config-ip-if)# vlan 100
CN 4093(config-ip-if)# exit
VRRP Master
VLAG Peer 1
Layer 3
VIR: 10.0.1.100
Router
1
2
4
ISL
4
1
2
Layer 3
VRRP Backup
Router
VLAG Peer 2
VIR: 10.0.1.100
Chapter 11: Virtual Link Aggregation Groups
523) can be used in
Server 1
VLAG 1
10.0.1.1
10
11
Server 2
VLAG 2
5
12
10.0.1.2
5
10
11
VLAG 3
Server 3
12
10.0.1.3
Network 10.0.1.0/24
212.
393.
205