xen on a 2950 - HELP

[Cameron Moore]

I can confirm with Dirk that this work-around does indeed _work_.  I'm now
able to start the default FC5 Xen bridge config on a PE2950 without
killing networking[1].  Thanks John!!

[1] I'm also seeing a problem (before and after the uxdiag trick)
keeping a connection established.  For example, if I ssh to another
host, the connection is dropped by the 2950 after a couple minutes.
I've also tested downloading a large file via ftp and the 2950 can only
get about the first 400-500MB before the connection dies.  If I test the
ssh and ftp stuff at the same time, both connection are interrupted at
about the same time.  Anyone else having this problem?

Dirk mentioned in a private email that toying with IRQs seemed to fix it
for him, but I haven't tested that yet.  BTW, I've got both NICs going
into a Cisco 3750 Gig switch.  Thanks

* dirk.allaert at barclab.com (Dirk Allaert) [2006.08.03 06:01]:
> This has fixed the Xen issue for me (eth0 is still NIC2). You can 
> download the utility from 
> http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R125802&SystemID=PWE_1950&os=DOS&osl=en&deviceid=8641&devlib=0&typecnt=2&vercnt=1&formatcnt=1&libid=5&fileid=166797
> 
> I did not work for me the first time though. I used the command John 
> kindly provided, rebooted, but problem remained. I tried it again, but 
> now issued
> uxdiag -c 1 -mfw 0
> uxdiag -c 2 -mfw 0
> I have no idea if the second command is necessary but it works. I can 
> now use the default Xen setup (single bridge).
> 
> thanks John!
> 
> 
> John_Hull at dell.com wrote:
> > We saw this same problem during our testing with Xen on SLES 10, and
> > determined that it was related to the IPMI management portion of the
> > firmware on the integrated Broadcom NICs. We should have a fix for that
> > later this fall, but the workaround below *should* fix it for you:
> >  
> > *Download the uxdiag utility from support.dell.com, and put it on a
> > bootable DOS floppy
> > *Boot to the floppy. 
> > *To disable management firmware on integrated NIC, run the following
> > command:
> >                a:\uxdiag -c 1 -mfw 0 -t abcd
> >
> >
> >
> > ________________________________
> >
> > 	From: linux-poweredge-bounces at dell.com
> > [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Dan Metcalf
> > 	Sent: Wednesday, August 02, 2006 4:52 PM
> > 	To: linux-poweredge-Lists
> > 	Subject: xen on a 2950 - HELP
> > 	
> > 	
> >
> > 	Can anybody help with a network problem on a 2950? I can't ping
> > the network/gateway when booting into xen on FC5 or SUSE 10.1? I was
> > given this script but it does NOT appear to be running, any help would
> > be appreciated - thank you
> >
> > 	 
> >
> > 	Dan
> >
> > 	 
> >
> > 	 
> >
> > 	=BEGIN
> >
> > 	#!/bin/bash
> >
> > 	# Exit if anything goes wrong.
> >
> > 	set -e
> >
> > 	 
> >
> > 	# First arg is the operation.
> >
> > 	OP=$1
> >
> > 	shift
> >
> > 	 
> >
> > 	script=/etc/xen/scripts/network-bridge
> >
> > 	 
> >
> > 	case ${OP} in
> >
> > 	  start)
> >
> > 	        $script start vifnum=1 bridge=LAN netdev=eth0
> >
> > 	        $script start vifnum=0 bridge=DMZ netdev=eth1
> >
> > 	        brctl delif LAN vif0.1
> >
> > 	        brctl delif DMZ vif0.0
> >
> > 	        brctl addif LAN vif0.0
> >
> > 	        brctl addif DMZ vif0.1
> >
> > 	        ;;
> >
> > 	 
> >
> > 	    stop)
> >
> > 	        $script stop vifnum=0 bridge=LAN netdev=eth0
> >
> > 	        $script stop vifnum=1 bridge=DMZ netdev=eth1
> >
> > 	        ;;
> >
> > 	    status)
> >
> > 	        $script status vifnum=0 bridge=LAN netdev=eth0
> >
> > 	        $script status vifnum=1 bridge=DMZ netdev=eth1
> >
> > 	        ;;
> >
> > 	 
> >
> > 	    *)
> >
> > 	       echo 'Unknown command: ' ${OP}
> >
> > 	       echo 'Valid commands are: start, stop, status'
> >
> > 	       exit 1
> >
> > 	esac
> >
> > 	=END
> >
> > 	 
> >
> > _______________________________________________
> > Linux-PowerEdge mailing list
> > Linux-PowerEdge at dell.com
> > http://lists.us.dell.com/mailman/listinfo/linux-poweredge
> > Please read the FAQ at http://lists.us.dell.com/faq
> >
> >   


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-- 
Cameron Moore
/ Why do we refer to a crazy person as \
\ insane.  Shouldn't we say "outsane?" /