[ofa-general] infiniband bonding/merging/aggregation with SDPand/or VERBS

Thu Mar 8 08:54:38 PST 2007

Can the bonding driver load balance IPoIB traffic across multiple
interfaces at the same time?

Scott Weitzenkamp
SQA and Release Manager
Server Virtualization Business Unit
Cisco Systems

> -----Original Message-----
> From: general-bounces at lists.openfabrics.org 
> [mailto:general-bounces at lists.openfabrics.org] On Behalf Of Moni Shoua
> Sent: Thursday, March 08, 2007 12:44 AM
> To: SEGERS Koen
> Cc: general at lists.openfabrics.org
> Subject: Re: [ofa-general] infiniband 
> bonding/merging/aggregation with SDPand/or VERBS
> 
> SEGERS Koen wrote:
> Hi, 
> My answers below refer only to the ib-bonding package that 
> comes with OFED-1.2
> > 
> > Hi all!
> > 
> > We are trying to bond two ports on 1 HCA so that we are 
> able aggregate
> > the throughput. We are also interested in bonding ports of 
> different HCA's.
> ib-bonding currently supports High Availability but not link 
> aggregation.
> > 
> > Is this possible with the OFED driver? If so, can you give 
> the command?
> > We know TopSpin has support for this feature. Sadly, Topspin has no
> > driver that runs on our system (SLES 10).
> > 
> > We currently installed OFED-1.2 of 20070306 and the stable OFED-1.1
> > driver, but we can't figure out how this bonding is started 
> in either
> > versions. It is important that we offload the bonding. We 
> don't want to
> > use the standard linux bonding. That is why we think that 
> bonding over
> > different HCA's is not going to work. Is this assumption correct?
> ib-bonding is based on standard Linux bonding with some 
> required changes to make it work with IPoIB.
> > 
> > Is bonding possible when running SDP? And VERBS?
> ib-bonding only works with IPoIB.
> > 
> > Greetings
> > 
> > Koen
> > 
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> > 
> > 
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