Does portfast affect spannign tree topology changes
When looking at spanning tree stats on a LAN consisting of Catalyst switches, I see a lot of spanning tree changes when I am positive that the actual tree hasn't changed. Do Catalyst switches see a port going up and down as a spanning tree topology change? can this be remedied by configuring portfast on all user ports as currently the spanning tree stats don't give me much useful info.
Re: Does portfast affect spannign tree topology changes
Yes. Catalyst switches do see a port going up and down as a spanning tree topology change. If the ports connect to a end device, you'll need to enable portfast not only to avoid TCN generation but also to reduce startup connectivity time
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.