I'm attempting to setup a failover bridge(4) configuration with RSTP for rapid failover. At this point I'm still tweaking the bridges and switches. We're using a Foundry LS648 for this test, so we don't have Cisco's "unplinkFast" extension at our disposal.
We have two VLANs configured on the switch, each with 802.1w enabled and functioning normally. Plugged into each VLAN is a single client and one interface from each firewall. 10.20.0.2 <-> vlan200 <-> bridge0 <-> vlan300 <-> 10.20.0.3 Regardless of whether I use rstp (default) or stp (+ ifpriority/ifcost) on the bridges, it always takes ~5 minutes to failover. I noticed that with stp enabled on the physical interfaces, the switch would immediately show the correct bridge as the forwarding root. With the default rstp, the switch shows all ports as designated forwarding. I've also tried disabling learning on the internal interfaces and adding static entries for 10.20.0.3, but this has no effect on the recovery time. Any suggestions on getting a rapid failover working? Thanks, -- Jason Dixon DixonGroup Consulting http://www.dixongroup.net/
