I believe you are talking about etherchannel (802.3ad).
You can only bundle 8 ports together at once (not 48, that would be cool).
You do this using the channel-group as an interface level command :-
switch(config)#interface range gigabitethernet 0/1 - 4
switch(config-if-range)#channel-group 1 mode on
In this example I have selected 4 interfaces and put them into channel-group1 which will create a Port-channel interface where all future config is applied. I will now have a 4 gig Port-channel that will share the load using an algorithm (which is configurable on on per device level) see the link below :-
What Adam said is correct about Ethercahennel, however don't be confused about the bandwidth. With Etherchannel it doesn't work like you have a single 4 Gb link. While it is true that you have a total of 4 Gb you actually have 4 1 Gb links. Basically if you try to transfer something through the EtherChannel from a single host you will see a mazimum transfer rate of 1 Gb, not 4Gb. Etherchannel does provide redundancey and increased available bandwidth.
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...
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...