LLC is/was frequently usually used with traditional SNA over Ethernet.
SNAP is/was used mostly with Apple EtherTalk.
Regarding whether you "need" to know the frame formats, no, probably not. It's a good thing to know and/or keep handy for troubleshooting with a network analyzer ("Sniffer") and especially if you deal with old networks that may stillbe using legacy applications.
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.