04-10-2011 04:38 PM
I have P4300 (AT016A) with 2x nodes. Wanting to setup bonded NICs on each node using ALB (Adaptive Load Balancing). Wondering: do I need to setup Spanning Tree and Flow Control on the switch, or is this not required with ALB? I was a bit unsure in the documentation I read.
04-11-2011 06:13 AM
Don't forget to set the flow control on each individual NIC before creating the bond as it's a huge pain having to break the bond, set the individual NIC IPs back, enable flow control, and recreate the bond again.
04-11-2011 06:17 AM
As mentioned, STP is not required for ALB.
04-11-2011 04:55 PM
04-17-2011 04:06 PM
It introduces a initial delay in communication.
Hence leave Spanning Tree OFF.
Flow Control is Recommended to be ON
Smooths out traffic between Nodes/Hosts, Good for Performance too.
Perform the above on the Switch and the turn ON Flow Control on the individual Nics on the Nodes and then create a BOND.
Flow Control should be turned on the Host side as well.
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04-17-2011 04:34 PM
Is there any problem if I leave Flow Control OFF? I spoke to Cisco support (we have Cisco-Linksys switches), and they said they generally don't use Flow Control.
Also, I'm thinking of installing multiple switches for failover redundancy, in case a switch dies. But in this case STP will be necessary. Should that be fine, or is there a better alternative for implementing multiple switches? I was thinking of having the P4300 bonds setup so that each port was on a different switch, and both switches had a link to second site (with two switches there also).
04-19-2011 10:25 AM
It is not required for ALB and I've used it without in the past with no issues. You definately need to setup ALB though.