Edison have slit excellent point about L2 Security feature, I just added this post because I had some confusion on the past about implementing whether (root guard) or bpdu guard on at interface.
Afaik, root guard , will still allow a switch to receive BPDUs although it wont allow superior hellos, but still its allowed, rather (Bpdu guard) would put the port immediately into err-disable state once its receives BPDUs.
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.