I have set up a lab to look at F/R with a partial mesh and sub-interfaces.
I have 3 DTE routers connected to a Frame Switch. One Router named 'middle' has the sub-interfaces configured on it. The other 2 routers named 'Top' & 'Bottom' are just physical interfaces.
I used RIP to route the two networks between Top & Middle and Bottom & Middle respectively. The F/R side has gone well, however, CDP switched itself off on both of the physical interfaces on routers Top & Bottom !!!
Is there a good reason for this ?
To rectify this I have simply enabled cdp on both the serial interfaces.
CDP is disabled by default on (physical) serial interfaces configured for frame-relay encapsulation. That is also the case on multipoint frame-relay interfaces. That is standard IOS behaviour. I think it's due to the fact that these interface types do not inherently support multicast.
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.