xen on a 2950 - HELP

[Dan Metcalf]

did you make any adjustments besides running that command?

On Thu, 2006-08-03 at 15:19 -0500, Cameron Moore wrote:
> 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
> > >
> > > 	 
> > >
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> > >
> > >   
> 
> 
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