Gunther: I'd recommend 802.1w, as it's industry-standard for rapid spanning tree.
Did you set "admin-pt2pt-mac" on switch-to-switch links? Without that, RSTP/802.1w will act more like regular spanning-tree. interface ethernet 4/1 spanning-tree 802-1w admin-pt2pt-mac You'll need to apply that to both links on both switches. With this in place I see sub-second failover. -Jared -----Original Message----- From: [EMAIL PROTECTED] [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Gunther Stammwitz Sent: Tuesday, June 24, 2008 12:05 PM To: foundry-nsp at puck.nether.net Subject: [f-nsp] Rapid Spanning Tree too slow (like ordinary -not rapid -stp) My config is looking like this: vlan 503 name FRA3-FCS by port tagged ethe 49 to 50 untagged ethe 4 spanning-tree rstp spanning-tree rstp priority 0 I've already tried to use "spanning tree 802-1w" instead of rstp which didn't help. this behavior can be seen on bigirons and netirons using jetcore/M4 and irconcore/M3 as well as on the FI4802-switch on the router and the switch-codetrees. Is anyone else seeing the same problem? How can one fix it? thx, Gunther _______________________________________________ foundry-nsp mailing list foundry-nsp at puck.nether.net http://puck.nether.net/mailman/listinfo/foundry-nsp
