FabricPath Interaction with Spanning Tree
FabricPath edge ports support direct Classic Ethernet host connections and connections to the traditional Spanning-Tree switches. By default, FabricPath switches transmit and process STP BPDUs on FabricPath edge ports. However, BPDUs including TCNs are not transmitted on FabricPath core ports and as a result, no BPDUs are forwarded or tunneled through the FabricPath network. Therefore, FabricPath isolates STP domains. The entire FabricPath network appears as a single STP bridge to any connected STP domains. To appear as one STP bridge, all FabricPath switches share a common bridge ID, or BID (C84C.75FA.6000). This BID is statically defined and is not user configurable.
Each FabricPath edge switch must ...
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