About lacp

[donglee]

I got one problem about lacp.This is the case:
Our core switch is cisco 4506e switch, and recently we got one huawei s5700-28C-EI which uplink to our cisco 4506. We want to enable lacp between them. But there is one problem, my s5700 and 4506e all just leave one 10GE port. I know they cannot support lacp between 10GE and 1GE now. So I want to enable lacp between 1GE optical port and 1GE RJ45 port. May I ?

 

[theonlyski]

You're going to need a fiber to UTP transceiver.

Not knowing the specifics of the other switch, I cannot confirm it, but it should work if they both support LACP (I know the Cisco does)

 

[bendsley]

You should have no issues between an optical and a copper bond for LACP. As long as they operate at the same speed, this should work.

 

[Dreamslacker]

Wouldn't using the 10GE ports along with a 1GE link and some form of STP be better?

The 10GE gives better bandwidth (than 2 x 1GbE LACP) and you can always have the 1GE as failover in a STP configuration.

 

[bendsley]

No. Don't do that. Remember, LACP is round robin as well, and you're going to have alternating speeds between 1gb and 10gb. Are you really going to be able to saturate a 2gb link?

The 10gb link is there for uplinks/trunks/etc. Use that for data between switches.

Either use the one 10gb link or multiple 1gb links in an LACP/channel-bond manner. Don't utilize both in a single bond.