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List:       linux-390
Subject:    Re: Arp cache in a VSWITCH ??
From:       Agblad Tore <Tore.Agblad () volvo ! com>
Date:       2012-11-15 9:51:13
Message-ID: 3B06E821D903C745A1F24B965076A0D2018C4F5EFD () SEGOTC5150-CCR ! vcn ! ds ! volvo ! net
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Just for your information about our problem with TCPIP traffic suddenly
stopping, and working again after a reboot or network restart or failing over to
the backup OSA ports.

We are pretty sure it's the use of Layer 3 that is causing the problem.
After changing eth0 config and changing to a vswitch using layer 2, problem goes \
away. So we have added a new setup of vswitches using layer 2, and changes the \
servers when we need to or can now, one by one.

________________________________________________ 
Tore Agblad 
System programmer, Volvo IT certified IT Architect
Volvo Information Technology 
IMO Mainframe Databases & zOpen Gothenburg
Dept.  DE56430
SE-405 08, Gothenburg  Sweden 
Telephone: +46-31-3233569 
E-mail: Tore.Agblad@volvo.com 
http://www.volvo.com/volvoit/global/en-gb/ 

-----Original Message-----
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mark Post
Sent: den 1 november 2012 01:01
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Arp cache in a VSWITCH ??

> > > On 10/31/2012 at 10:23 AM, Agblad Tore <Tore.Agblad@volvo.com> wrote: 
 
> -----Original Message-----
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Marcy 
> Cortes
> Sent: den 31 oktober 2012 14:43
> To: LINUX-390@VM.MARIST.EDU
> Subject: Re: Arp cache in a VSWITCH ??
> 
> Can you ping the load balacer from the server?  

> no

Then I think you've got a whole different problem than a stale arp cache somewhere.  \
Unless you can ping your default gateway, in which case it's something else entirely.


Mark Post

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