Cisco 3560G 48TS Software Configuration Guide - Page 771

Chapter 34 Configuring Fallback Bridging Configuring Fallback Bridging Default Fallback Bridging Configuration Table 34-1 shows the default fallback bridging configuration. Table 34-1 Default Fallback Bridging Configuration Feature Bridge groups Switch forwards frames for stations that it has dynamically learned Spanning tree parameters: • Switch priority • Port priority • Port path cost • Hello BPDU interval • Forward-delay interval • Maximum idle interval Default Setting None are defined or assigned to a port. No VLAN-bridge STP is defined. Enabled. • 32768. • 128. • 10 Mbps: 100. 100 Mbps: 19. 1000 Mbps: 4. • 2 seconds. • 20 seconds. • 30 seconds. Fallback Bridging Configuration Guidelines Up to 32 bridge groups can be configured on the switch. An interface (an SVI or routed port) can be a member of only one bridge group. Use a bridge group for each separately bridged (topologically distinct) network connected to the switch. Creating a Bridge Group To configure fallback bridging for a set of SVIs or routed ports, these interfaces must be assigned to bridge groups. All interfaces in the same group belong to the same bridge domain. Each SVI or routed port can be assigned to only one bridge group. Note The protected port feature is not compatible with fallback bridging. When fallback bridging is enabled, it is possible for packets to be forwarded from one protected port on a switch to another protected port on the same switch if the ports are in different VLANs. 78-16156-01 Catalyst 3560 Switch Software Configuration Guide 34-3