You can bundle up to 8 physical ethernet ports to form an etherchannel. The ports can be ethernet, fast ethernet, gigabit ethernet or 10-gigabit ethernet.
Packets get encapsulated so that they can be put on a network that supports a certain technology. A packet that will traverse an ethernet network will be encapsulated in an ethernet protocol packet. A packet that will be placed on a point-to-point link will be encapsulated with either PPP or HDLC. A packet that will traverse a frame-relay network will get encapsulated in a frame relay packet.
There is protocol-specific information in the header of the packet that the network uses to forward the packet, such as source and destination addresses, protocol-type, length, etc. .
You really should read a basic CCNA-type book to understand this because this is something that is very fundamental.
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.