knockdown voltair switch with ARP multicast

knockdown voltair switch with ARP multicast

[Bob Ciotti]

I've been able to duplicate a nasty problem that took
down our system last week. I believe its caused by
IPoIB ARP multicast traffic. The 4036 switch subscribes
to the IPoIB multicast group whether the SM is running
or disabled. When the switch goes belly up, and it can't be
programmed by the SM.

ERR 3113: MAD completed in error (IB_TIMEOUT): SubnSet(SwitchInfo),
attr_mod 0x0, TID 0x22322

smpquery works (nodeinfo/switchinfo) but perfquery fails with
ibwarn: [26748] _do_madrpc: recv failed: Connection timed out

I can log into the switch, but wouldn't know what to look for there.

Voltaire support case number 
 US Case 00018085: Re: NASA Issue [[ ref:00D38IO.5008BPc6T:ref]]

Maybe someone on the voltaire side can help.

I'm working the issue now
Wed Jul 21 00:34:14 PDT 2010



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Re: knockdown voltaire switch with ARP multicast

[Or Gerlitz]

Bob Ciotti wrote:
> Maybe someone on the voltaire side can help.
> I'm working the issue now Wed Jul 21 00:34:14 PDT 2010
Hi Bob,

I understand that some folks from Voltaire are working with you directly.

Or.
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Re: knockdown voltaire switch with ARP multicast

[Bob Ciotti]

Yes. Good progress - most likely idnetify workaround.

On Wed, Jul 21, 2010 at 06:38:10AM -0500, Or Gerlitz wrote:
> Bob Ciotti wrote:
> > Maybe someone on the voltaire side can help.
> > I'm working the issue now Wed Jul 21 00:34:14 PDT 2010
> Hi Bob,
> 
> I understand that some folks from Voltaire are working with you directly.
> 
> Or.
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