# [OmniOS-discuss] Aggregation Link fails with flow-control enabled

Scott LeFevre slefevre at indy.rr.com
Wed Sep 3 14:05:58 UTC 2014

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    Did you configure LACP on your aggr0 or the switch?
    That's the only way I've been able to get aggregate links to work.
    --
    Scott LeFevre
    317-696-1010

    On Wed, 2014-09-03 at 13:05 +0200, David Seira wrote:
    > I'm testing the OmniOS for our storage system. I have a server with
    > two 10G intel network card using the driver ixgbe.
    >
    >
    >
    > I've done the following steps:
    >
    >
    > - Create an aggregation interface:
    >
    >
    > dladm create-aggr -d ixgbe0 -d ixgbe1 aggr0
    > ipadm create-if aggr0
    > ipadm create-addr -T static -a 1.2.3.4/24 aggr0/v4
    >
    >
    > - Add a flow-control for the aggregation interface:
    >
    >
    > flowadm add-flow -l aggr0 -a local_ip=1.2.3.4 flow_aggr0
    >
    >
    > After this, if I shutdown one of the interfaces in the switch I loose
    > the connectivity with the server. It seems that the aggregation
    > doesn't forward the traffic to the other interface.
    >
    >
    > Having one of the ports in the switch down, and without connectivity
    > with the server because of the above issue; If I remove the flow
    > (through the console, of course), the server goes online immediately.
    >
    >
    > If I add the flow again, the server is innacessible again.
    >
    >
    > It seems an incompatibility with the aggreation interfaces and the
    > flow control.
    >
    >
    > I've tested this bug with the r151006 and r151010 releases with the
    > same result.
    >
    >
    > The hardware where I've tested is:
    >
    >
    > - Dell PowerEdge R720 with an Intel X520 dual port 10G/SFP
    > - Dell PowerEdge C6220 with 10G mezzanine dual port
    >
    >
    > Does anyone know what can be the problem? Has anyone experienced a
    > similar issue?
    >
    >
    > Best regards.
    >
    >
    > --
    >
    >
    >
    >
    > _______________________________________________
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    > OmniOS-discuss at lists.omniti.com
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