Neighbour Table Overflow on NFS Server

[Navin Boppuri]

Hello again,

I forgot to mention something. I sniffed the ethernet packets on the NFS
Server machine. I see that a request comes in from my custom board to the
NFS to the correct IP of the server. The HW Address of the board shows up
correctly, but the HW Address of the Server in the request shows up an 0.

ARP:
Request from:
211.111.21.41 -->  08:09:87:l0:73:16      // ethernet info of the custom
board
211.111.21.43 -->  00:00:00:00:00:00     // ethernet info of the nfs server

Does this look like some ARP problem? I am not sure about that since my TFTP
request for the zImage works just fine and the arp tables in the server show
up the board info correctly.

Any ideas?

----- Original Message -----
From: "Chris Hallinan" <clh at net1plus.com>
To: <nboppuri at trinetcommunication.com>
Cc: <linuxppc-embedded at lists.linuxppc.org>
Sent: Friday, December 29, 2000 12:46 PM
Subject: RE: Neighbour Table Overflow on NFS Server


>
> Can't say I know exactly what it means (internally to the
> kernel/driver) but we ALWAYS get this message when the
> Ethernet cable is disconnected.  I would suspect physical
> connections: check your cable,hub, etc.  In our experience,
> it seems to indicate that the Ethernet driver is incapable
> of completing transmit operations.
>
> -Chris Hallinan
>
> -----Original Message-----
> From: owner-linuxppc-embedded at lists.linuxppc.org
> [mailto:owner-linuxppc-embedded at lists.linuxppc.org]On Behalf
> Of Mark S. Mathews
> Sent: Friday, December 29, 2000 1:03 AM
> To: Cal Erickson
> Cc: Navin Boppuri; linuxppc-embedded at lists.linuxppc.org
> Subject: Re: Neighbour Table Overflow on NFS Server
>
>
> I may be completely off-base here, but I seem to recall
> getting some of
> these a long time ago.  At the time I think it was cause by
> a lack of a
> loopback device and routes.
>
> -Mark
>
> On Thu, 28 Dec 2000, Cal Erickson wrote:
>
> >
> > Navin,
> >  The message "neighbour table overflow" is the result of
> some
> > changes to the IP stack software in Linux version 2.2.x +.
> This
> > simply means that you are unable to connect to your NFS
> > server.  It may be related to the driver, but it may also
> be
> > related to other issues, such as NFS server not running or
> > incorrectly installed, no physical connectivity to NFS
> server,
> > etc.  Check the configuration of your NFS server and IP
> > network before diving into the driver.
> >
> > Cal Erickson
> >
> > Navin Boppuri wrote:
> >
> > > Hello,
> > >
> > > I have been debugging my custom 823 board. I have an NFS
> Server setup on
> > > which my kernel on the board mounts. I have using this
> server without any
> > > problems for more than a month. All of the sudden, my
> NFS Server complains
> > > of "Neighbour Table overflow" . The NFS Server was not
> modified, nor
> > > restarted. The error also says that the Server returned
> error -5.  Can
> > > someone suggest any remedy for this problem?
> > >
> > > Sincerely,
> > > Navin Boppuri
> > >
> >
> > --
> >
> ============================================================
> ===============
> > Cal Erickson                 MontaVista Software Inc.
> > Linux Consultant             1237 E. Arques Ave.
> > Phone (408) 328-0304         Sunnyvale CA 94085
> > Fax   (408) 328-9204         web http://www.mvista.com
> >
> ============================================================
> ===============
> >
> >
> >
>
>
> Mark S. Mathews
>
> AbsoluteValue Systems      Web:    http://www.linux-wlan.com
> P.O. Box 941149            e-mail: mark at linux-wlan.com
> Maitland, FL 32794-1149    Phone:  407.644.8582
> USA                        Fax:    407.539.1294
>
>
>


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