Hi All, Can anybody confirm if uplinkfast is enabled when you run MST? http://www.cisco.com/en/US/products/hw/switches/ps708/products_configura tion_example09186a00807b075f.shtml "The spanning tree uplinkfast and backbonefast features are PVST+ features, and it is disabled when you enable MST because those features are built within RSTP, and MST relies on RSTP." To me this statement seems rather ambigious - are they saying uplinkfast is disabled with MST or is it built into RPST and therefore MST will have that feature too??? When I enable uplinkfast , it tells me that uplinkfast is inactive in mst and testing shows a lost of data flow for around 20-30sec before traffic switches over to the redundant link??? switch #sh span summ Switch is in mst mode Root bridge for: none EtherChannel misconfig guard is enabled Extended system ID is enabled Portfast Default is disabled PortFast BPDU Guard Default is disabled Portfast BPDU Filter Default is disabled Loopguard Default is enabled UplinkFast is enabled but inactive in mst mode BackboneFast is disabled Pathcost method used is long Name Blocking Listening Learning Forwarding STP Active ---------------------- -------- --------- -------- ---------- ---------- MST00 0 0 0 2 2 MST01 0 0 0 2 2 ---------------------- -------- --------- -------- ---------- ---------- 2 msts 0 0 0 4 4
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