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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 26 Configuring Fallback Bridging
Configuring Fallback Bridging
Configuring Fallback Bridging
This section describes how to configure fallback bridging on your switch. It contains this configuration
information:
•
Default Fallback Bridging Configuration, page 26-3
•
Creating a Bridge Group, page 26-4
•
Preventing the Forwarding of Dynamically Learned Stations, page 26-5
•
Configuring the Bridge Table Aging Time, page 26-6
•
Filtering Frames by a Specific MAC Address, page 26-6
•
Adjusting Spanning-Tree Parameters, page 26-7
Default Fallback Bridging Configuration
Table 26-1
shows the default fallback bridging configuration.
Table 26-1 Default Fallback Bridging Configuration
Feature
Default Setting
Bridge groups
None are defined or assigned to an interface. No
VLAN-bridge STP is defined.
Switch forwards frames for stations that it has
dynamically learned
Enabled.
Bridge table aging time for dynamic entries
300 seconds.
MAC-layer frame filtering
Disabled.
Spanning tree parameters:
•
Switch priority
•
Interface priority
•
Interface path cost
•
Hello BPDU interval
•
Forward-delay interval
•
Maximum idle interval
•
32768.
•
128.
•
10 Mbps: 100.
100 Mbps: 19.
1000 Mbps: 4.
•
2 seconds.
•
20 seconds.
•
30 seconds.
