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Web OS 10.0 Application Guide
By reducing complexity to a single subnet and not requiring routing (L3), hot-standby can be
used. The key to hot-standby is that the interswitch link (the link between switches), does NOT
participate in STP, so there are no loops in the topology (see
be enabled, and the switch will have failover times similar to what would be the case with VRRP.
Configuration Procedure
Configuration takes place after configuring SLB and VRRP with STP enabled:
1.
From the SLB menu, enable a hot-standby link on the Layer 4 ports; then enable inter-
switch link on the crosslink.
>> Main# /cfg/slb/port 1
>> SLB Port 1# server ena
>> SLB Port 1# hotstan ena
>> SLB Port 1# ../port 3
>> SLB Port 3# intersw ena
>> SLB Port 3# ../port 7
>> SLB Port 7# client ena
>> SLB Port 7# hotstan ena
2.
From the VRRP menu, enable VRRP group mode; then enable hot-standby.
>> Main# /cfg/vrrp/on
>> VRRP# hotstan ena
>> VRRP# group ena
3.
Sync the VRRP, SLB, and filter settings to the other switch (same ports).
>> Main# /oper/slb/sync
N
OTE
4.
Turn off STP after verifying that the network is stable.
>> Main# /cfg/stp 1/off
>> Spanning Tree Group 1# save
>> Main# /boot/reset
N
OTE
n
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Chapter 11: High Availability
–
Switches peering with each other must have an equal number of ports.
–
You must reboot the switch for the hot-standby configuration to take effect.
Figure
11-10). STP does not need to
(Select port 1)
(Enable the server)
(Enable hot standby)
(Select port 3)
(Enable inter-switch processing)
(Select port 7)
(Enable the client)
(Enable hot standby)
(Enable VRRP)
(Enable hot standby)
(Enable VR group)
(Disable STP group)
(Enable hot standby)
(Reset the switch)
212777-A, February 2002
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