RE: RE: MTU Mismatch in OSPF

From: John Gibson (johngibson1541@yahoo.com)
Date: Sat Jun 23 2007 - 22:46:25 ART


It works as you said.

Thank you very much.

John

--- Antonio Soares <amsoares@netcabo.pt> wrote:

> I noticed than even deleting the env and system_env,
> the 3560 maintains the
> settings. Try to configure mtu as 1500, then reload.
> Then delete the env
> files and reload again.
>
> -----Original Message-----
> From: John Gibson [mailto:johngibson1541@yahoo.com]
> Sent: domingo, 24 de Junho de 2007 2:13
> To: Antonio Soares; 'Radioactive Frog'
> Cc: ccielab@groupstudy.com
> Subject: RE: RE: MTU Mismatch in OSPF
>
> My 3560 is SED , not SEE.
>
> Switch#show flash:
>
> Directory of flash:/
>
>
> 1
> 3 drwx 192 Mar 1 1993 00:08:23 +00:00
>
> c3560-advipservicesk9-mz.
> 22-25.SED
>
> 32514048 bytes total (23225856 bytes free)
> Switch#show system mtu
>
> System MTU size is 1504 bytes
> System Jumbo MTU size is 1504 bytes
> Routing MTU size is 1504 bytes
> Switch#
>
> univercd for SED says mtu 1500.
>
> I will upgrade to 12.2(37)
>
> John
>
>
> --- Antonio Soares <amsoares@netcabo.pt> wrote:
>
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> > The 3560 default is 1500:
> >
> > Switch#sh flash
> >
> > Directory of flash:/
> >
> > 2 -rwx 7963038 Mar 1 1993 00:57:27
> +00:00
> > c3560-advipservicesk9-mz.122-25.SEE2.bin
> >
> > 32514048 bytes total (24549888 bytes free) Switch#
> Switch# Switch#sh
> > flash
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> > Directory of flash:/
> >
> > 2 -rwx 7963038 Mar 1 1993 00:57:27
> +00:00
> > c3560-advipservicesk9-mz.122-25.SEE2.bin
> >
> > 32514048 bytes total (24549888 bytes free)
> >
> > Switch#sh system mtu
> >
> > System MTU size is 1500 bytes
> > System Jumbo MTU size is 1500 bytes
> > Routing MTU size is 1500 bytes
> > Switch#
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> >
> > But the way, when you have an OSPF Mtu Mismatch,
> where you do add the
> > "ip ospf mtu-ignore" command ?
> >
> > 1) The device with the lower Mtu.
> > 2) The device with the higher Mtu.
> > 3) Both devices.
> >
> >
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com
> > [mailto:nobody@groupstudy.com] On Behalf Of
> Radioactive Frog
> > Sent: sabado, 23 de Junho de 2007 5:23
> > To: johngibson1541@yahoo.com
> > Cc: ccielab@groupstudy.com
> > Subject: Re: RE: MTU Mismatch in OSPF
> >
> > dats sound strange to me!
> > frog
> >
> >
> > On 6/23/07, johngibson1541@yahoo.com
> > <johngibson1541@yahoo.com> wrote:
> > >
> > > I think 3550's MTU at 1504 is caused by a file
> > flash:env_vars
> > >
> > > If I remove this file, then reload it will
> become
> > 1500.
> > >
> > > My 3560 is a different story. It is 1504 by
> > itself.
> > >
> > > Strangely, univercd keeps talking about 3560 and
> > 3550 default mtu
> > > being 1500. They are just not saying the correct
> > thing.
> > >
> > > 3560 at 12.2(25) , 12.2(35) , and the latest
> > 12.2(37) all make the
> > > same mistake!
> > >
> > >
> >
>



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