Again its not always so simple. The ISDN bearer channel is rightly regarded as a switched layer2 technology. But considering that the ISDN network allows a client to open a connection to any point on a meshed network it could be considered to show layer3 characteristics.
Also LAPD which runs on the D channel is considered to be layer 2 (a modification of LAPB). So what is Q.931 which runs over it? This is a layer 3 protocol in a very real sense. The D-channel also supports X.25 packet data over LAPD so again this could be considered to be both Layer 2 and 3.
But if you look at it from the conventional perspective of IP, then these are all just part of a layer 2 process and are therefore all Data Link layer.
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.