Alteon Application Switch Operating System Application Guide
High Availability
538 Document ID: RDWR-ALOS-V2900_AG1302
The key to hot standby is that the interswitch link does not participate in STP, so there are no loops
in the topology (see Hot Standby Configuration, page 537). You have to disable STP globally to use
the VRRR hot standby scenario.
Note: In a host-standby configuration, Radware recommends that you locate the server and the
interswitch link on the same VLAN. This ensures that services are in the UP state for both the master
as well as the backup.
The following procedures refer to Figure 80 - Hot Standby Configuration, page 537
:
• To configure Layer 2 and Layer 3 parameters on Alteon 1, page 538
• To configure virtual router redundancy, page 539
• To prepare a configuration script for Alteon 2, page 540
• To synchronize Layer 4 parameters from Alteon 1 to Alteon 2, page 542
To configure Layer 2 and Layer 3 parameters on Alteon 1
This procedure assumes you have already configured SLB parameters.
1. On Alteon 1, configure the external ports into their respective VLANs as shown in Figure 80 -
Hot Standby Configuration, page 537.
2. Trunk the ports you configured for the client VLAN.
>> Main# cfg/port 3/tag ena
(Enable VLAN tagging for Port 3 )
>> Main# /cfg/l2/vlan 172
(VLAN 172 is for th einterswitch link
and for server traffic)
>> VLAN 172# ena
(Enable the VLAN)
>> VLAN 172# name ISL_and_servers
(Name VLAN 172 for the interswitch
link and for server traffic)
>> VLAN 172# add 3
(Add Port 3 to VLAN 172)
>> VLAN 172# add 4
(Add Port 4 to VLAN 172)
>> Main# /cfg/l2/vlan 192
(VLAN 192 is for client traffic)
>> VLAN 192# ena
(Enable the VLAN)
>> VLAN 192# name clients
(Name VLAN 192 for client traffic)
>> VLAN 192# add 15
(Add Port 15 to VLAN 192)
>> VLAN 192# add 16
(Add Port 16 to VLAN 192)
>> Main # /cfg/l2/trunk 1
(Select Trunk Group 1)
>> Trunk group 1# ena
(Enable the Trunk Group)
>> Trunk group 1# add 15 16
(Add the external ports to the
trunk)
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