From: Hal Rosenstock <hal-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: Michael Di Domenico
<mdidomenico4-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: non-symmetric MFT
Date: Thu, 18 Jul 2013 17:18:07 -0400 [thread overview]
Message-ID: <51E85B8F.7010109@dev.mellanox.co.il> (raw)
In-Reply-To: <CABOsP2O8s7nrACmWOj5FHCVUemc-XJP2pLyN5Fk_zLRJx6byzg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On 7/18/2013 1:50 PM, Michael Di Domenico wrote:
> i;ve run ibdiagnet -r on my infiniband network, i have a few errors
> showing up with this
>
> Found a non symmetric MFT on MLID:0x0CBB
Is that the real MLID or a typo ? MLIDs start at 0xC000.
> got to node:<guid> through
> port:17 which does not point back to node, etc etc...
>
> what does this mean?
It means that for some MLID on current switch, there is a port mask bit
set to go to a neighbor switch but when looking at same MLID in MFT on
neighbor switch, there isn't a port mask bit set pointing back to this
switch.
> i tried to look at the source but the comment a
> few lines above is not clear english, so i'm not sure what this is
> trying to tell me
>
> my fabric is up,
Does IPoIB have full connectivity ?
> so i'm assuming this is a routing issue,
It could be a multicast routing issue or tool issue.
-- Hal
> but i'm not sure how
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prev parent reply other threads:[~2013-07-18 21:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 17:50 non-symmetric MFT Michael Di Domenico
[not found] ` <CABOsP2O8s7nrACmWOj5FHCVUemc-XJP2pLyN5Fk_zLRJx6byzg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-07-18 21:18 ` Hal Rosenstock [this message]
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