Technical data

124 Brocade ServerIron ADX Advanced Server Load Balancing Guide
53-1003441-01
High availability designs with TCS
2
Layer 3 Symmetric Active-Active HA with TCS
Figure 31 illustrates a Symmetric Active-Active HA configuration with TCS, using VRRPE.
NOTE
To allow failover and session synchronization in a Symmetric Active-Active HA configuration to work
properly, there must be a Layer 2 connection between the two ServerIron ADX devices. This
connection is required so that Layer 2 broadcasts, including ARP to the VIP from the ServerIron ADX
with lower symmetric priority, can be exchanged between the two ServerIron ADX devices. In
configurations with multiple VLANs, the Layer 2 link must be on the sub-net where the VIPs are
configured.
FIGURE 31 Symmetric Active-Active HA configuration with TCS and VRRPE
Commands for router NI1
The following commands configure router NI1 in Figure 31.
NOTE
The route-only command is omitted on this NetIron configuration to allow Layer 2 connectivity
between the two ServerIron ADX devices on the VIP's sub-net.
NOTE
This example shows commands that are valid on the ServerIron ADX device only when it is running
the Layer 3 router image.
NetIron(config)#vlan 1 name DEFAULT-VLAN by port
NetIron(config-vlan-1)#router-interface ve 1
NetIron(config-vlan-1)#exit