[openib-general] configuring ipoib

[Kanevsky, Arkady]

that works.
Thanks Steve.

Arkady Kanevsky                       email: arkady at netapp.com
Network Appliance                     phone: 781-768-5395
375 Totten Pond Rd.                  Fax: 781-895-1195
Waltham, MA 02451-2010          central phone: 781-768-5300
 


> -----Original Message-----
> From: Steve Wise [mailto:swise at opengridcomputing.com] 
> Sent: Friday, October 21, 2005 2:31 PM
> To: Kanevsky, Arkady; Grant Grundler
> Cc: openib-general at openib.org
> Subject: Re: [openib-general] configuring ipoib
> 
> 
> Normally, in linux, you specify IP aliases thusly:
> 
> ifconfig <inferface>:<aliasnum> <ipaddr>
> 
> So to add a 2nd address to eth0, do this:
> 
> ifconfig eth0:1 1.2.3.4
> 
> And a 3rd like this:
> 
> ifconfig eth0:2 5.6.7.8
> 
> etc...
> 
> I would assume IPoIB interfaces behave the same way...
> 
> by the way, the <aliasnum> can be anything string.
> 
> 
> ----- Original Message ----- 
> From: "Kanevsky, Arkady" <Arkady.Kanevsky at netapp.com>
> To: "Grant Grundler" <iod00d at hp.com>
> Cc: <openib-general at openib.org>
> Sent: Friday, October 21, 2005 1:21 PM
> Subject: RE: [openib-general] configuring ipoib
> 
> 
> Thanks guys.
> Please, excuse my terminology.
> No I can route a single IP address to an IB port.
> But how do I route 2 (or more) IP addresses to the same IB port?
> 
> If I specify the same ib# it just changes an associated IP 
> address for the port. If I specify next ib# it returns an 
> error since that ib# does not have a port behind it.
> 
> Arkady Kanevsky                       email: arkady at netapp.com
> Network Appliance                     phone: 781-768-5395
> 375 Totten Pond Rd.                  Fax: 781-895-1195
> Waltham, MA 02451-2010          central phone: 781-768-5300
> 
> 
> 
> > -----Original Message-----
> > From: Grant Grundler [mailto:iod00d at hp.com]
> > Sent: Friday, October 21, 2005 11:58 AM
> > To: Kanevsky, Arkady
> > Cc: openib-general at openib.org
> > Subject: Re: [openib-general] configuring ipoib
> >
> >
> > On Fri, Oct 21, 2005 at 11:02:37AM -0400, Kanevsky, Arkady wrote:
> > > How do you configure ipoib?
> > > I used "ifconfig  ib0 ip_address" which works fine.
> > > But if I have several ports on an HCA how do I specify which port 
> > > ip_address should be associated with?
> >
> > Nit: For linux, Christoph Hellwig (and others) have 
> explained that the 
> > ip address is associated with the host, NOT any card. The 
> route to the 
> > subnet is associated with the card.
> >
> > > Ditto if you have multiple cards.
> >
> > iowa:/usr/src/linux-2.6.13# lspci -vt -d 15b3:
> > -+-[c0]---01.0-[c1]----00.0  Mellanox Technologies MT23108 
> InfiniHost
> >  +-[40]---01.0-[41]----00.0  Mellanox Technologies MT23108 
> InfiniHost
> >  \-[00]-
> > iowa:/usr/src/linux-2.6.13# ifconfig -a | fgrep ib
> > ib0       Link encap:UNSPEC  HWaddr
> > 00-00-04-04-FE-80-00-00-00-00-00-00-00-00-00-00
> > ib1       Link encap:UNSPEC  HWaddr
> > 00-00-04-05-FE-80-00-00-00-00-00-00-00-00-00-00
> > ib2       Link encap:UNSPEC  HWaddr
> > 00-00-04-04-FE-80-00-00-00-00-00-00-00-00-00-00
> > ib3       Link encap:UNSPEC  HWaddr
> > 00-00-04-05-FE-80-00-00-00-00-00-00-00-00-00-00
> >
> >
> > hth,
> > grant
> >
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