Cisco Catalyst 3750-X User Manual

50-10
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 50 Configuring Fallback Bridging
Monitoring and Maintaining Fallback Bridging
To re-enable spanning tree on the port, use the no bridge-group bridge-group spanning-disabled
interface configuration command.
This example shows how to disable spanning tree on a port in bridge group 10:
Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# bridge group 1
0 spanning-disabled
Monitoring and Maintaining Fallback Bridging
To display the bridge-group MAC address table on a stack member, start a session from the stack master
to the stack member by using the session stack-member-number global configuration command. Enter
the show bridge [bridge-group] [interface-id | mac-address | verbose] privileged EXEC command at the
stack member prompt.
For information about the fields in these displays, see the C
isco IOS Bridging and IBM Networking
Command Reference, Volume 1 of 2, Release 12.2.
Step 5
show running-config Verify your entry.
Step 6
copy running-config startup-config (Optional) Save your entry in the configuration file.
Command Purpose
Ta ble 50-2 Commands for Monitoring and Maintaining Fallback Bridging
Command Purpose
clear bridge bri
dge-group Removes any learned entries from the forwarding database.
show bridge [brid
ge-group] group Displays details about the bridge group.
show bridge [brid
ge-group] [interface-id |
mac-address | verbose]
Displays MAC addresses learned in the bridge group.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing