02-24-2008 12:54 PM - edited 03-05-2019 09:20 PM
Hi !
I'm trying to understand RSPT and I had setup a small network lab with 4 Catalyst access switches. I provide a small schema of my lab setup. I wrote on the schema where I was expected and see root port, designated and alternated port.
But when I disconnect a topology change I see the topology converge very quickly. When I reconnect previously disconnected cables the spanning tree algorithm does not reconverge correctly and each tine I see 1 port place in error disable stateâ¦. I should each time reenable port manually to make spanning tree return to his original topology.
At the first time I was setup each connection with etherchannel configuration, because I was have some problems to my topology reconvergence after returning to originale state, I decide to connect one one cable in each etherchannel (avoiding problem with etherchannel it-self ) but same thing appendâ¦
Can someone help me ??
I'm a French people excuse my English !
02-24-2008 03:08 PM
you will probably have to post the configs . The err-disable part is probably a etherchannel problem where both sides of the channel do not have equal settings so the switch puts it in a err-disable state.
02-25-2008 05:45 PM
here I attached the output of the following command :
sh run
sh cdp nei detail
sh int status
sh vers
Like I had tell in previous post only one ethernet cable on each etherchannel (make the etherchannel a virtual link contain only one physical connection) I was would like to removed etherchannel issues from my problems
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