On Tue, 24 Jun 2008, Gunther Stammwitz wrote: > 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.
One thing I can tell you is that 802-1w is what you need - that is 'real' RSTP. Confusingly, the 'rstp' in the Foundry is one of the earlier drafts for RSTP. See the documentation. You should also specify any non-shared media link (ie, not to a hub) as point-to-point, for example: spanning-tree 802-1w ethe 1/1 admin-pt2pt-mac And that's about as far as my knowledge goes :) But it works in the situations I've deployed it (BigIron, Super-X) like this, with topology change recovery times of 2 to 4 seconds, as expected. I'd be glad to hear any other optimisations people can suggest. Jethro. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jethro R Binks Computing Officer, IT Services University Of Strathclyde, Glasgow, UK
