Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

802.1d spanning tree vs rapid spanning tree

Hi all, im thinking of moving to rstp in one of my new networks, firstly, can anyone tell me the major differences between the 2? and do I need to configure anything when implementing rstp? ie do you still have a root bridge, and if so can you set it manually like normal stp ?

cheers

5 REPLIES
Purple

Re: 802.1d spanning tree vs rapid spanning tree

Yes you still have all the normal spanning tree parameters . The main difference that RSTP will converge when there is a change much faster usually within a couple seconds as opposed to like 45-50 seconds for normal spanning tree .

Re: 802.1d spanning tree vs rapid spanning tree

as mentioned, RSTP is bit faster in terms of timers & convergence. There are no separate listening & learning states so it saves 15 seconds of the time. also in case of recalculations, it doesnt have to wait for the max-age to expire but it would reconverge the entire topology after 2 BPDU's are missed.

New Member

Re: 802.1d spanning tree vs rapid spanning tree

Hi there

so, with rstp, do we still have a root switch?

Re: 802.1d spanning tree vs rapid spanning tree

Root is mandatory is all types of spanning-trees.

New Member

Re: 802.1d spanning tree vs rapid spanning tree

Hi,

Rapid spanning-tree also permits you to configure a secondary root switch in case the primary fails. It also has many features such as bpud guard, root guard, etc to maintain the network's integrity.

1458
Views
0
Helpful
5
Replies
CreatePlease login to create content