01-04-2003 04:13 AM - edited 03-02-2019 03:56 AM
Hi,
How to identify root bridge in catalyst 6509 and how to set backbone catalyst 6509 as a root bridge for the network.
01-04-2003 05:08 AM
Hi,
Spanning-tree is implemented as per vlan spanning tree, for example every vlan has its own root bridge.
To identify the primary root, enter "show spanning-tree vlan x" and check the line beginning with "current root..." it will show you the MAC address of the root. Entering "show mac-address table" will show you the MAC and IP addresses.
To set the primary root in the current switch and for every vlan you will bind:
Enter "spanning-tree vlan
Hope this will help you;
01-04-2003 08:17 AM
The following page should help
01-05-2003 06:09 PM
I agree with the answer provided by jhalldn. Just a note that if you do "show spantree
1. Designate a root bridge for the entire campus
2. Designate a secondary bridge for the entire campus
3. Setup a time for a major network outage and when the time comes ...
4. Setup primary root bridge to have a value of say 10 for ALL VLANS
5. Similarly setup secondary bridge to have value of say 20 for ALL VLANs
6. Make sure that at steps 4&5, you do NOT move on if you suspected there is an STP problem in your network.
Good luck
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