- Purple, 4500 points or more
Can someone tell me what the real purpose is for an Etherchannel?
If I have 2 L2 switches with 3 ports bundled in an etherchannel, that allows for more bandwidth between switches, but if I have a 2950 that only has 100mb ports, then I don't really gain anything right?
Are they strictly for redundancy or are they load balancers too?
Ahh okay. You can run etherchannel to a end device such as a server and depending on load-balancing algorithms supported you could get increased bandwidth. But the server would need to be able to aggregate it's individual NIC's into an etherchannel as well.
Note confusingly most other hardware vendors i have come across call aN aggregation of ports a trunk link rather than an etherchannel. So when a Unix admin talks about a trunk they mean an etherchannel and not a link that can carry multiple vlans.
Generally though you are correct in that etherchannel is more commonly used between switches.