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spanning tree

one stp topology is running if i will connect one more switch with it. Either it will affect our communication or not?

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New Member

Hi mukeshjindal, The two key

Hi ,

 

The two key points that spring to mind is where is the root bridge?

If the switch you are adding is an edge / access device, make sure it has the default bridge priority of 32768.

As long as your root bridge has a lower priority (0 preferably) the rest of your network will not reconverge when you add the new switch.

 

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This discussion has been

This discussion has been reposted from Cisco User Groups to the LAN, Switching and Routing community.

New Member

mukeshjindal, Jason is

mukeshjindal,

 

Jason is correct you want to manually set a root bridge so as to not have issues when adding new switches down the road. 

On another note you might want to also look into "spanning-tree rootguard" or "spanning-tree guard root".  This will disable ports (put them back into learning state) who would become the root bridge due to their BPDU advertisement. 

http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/10588-74.html

 

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