The MPLS-OPS Archive

[Dave Stewart <dave_stewart1576@yahoo.co.uk>]

Have come across a problem on a 7206 ethernet once too.

 

There was a case where the encapsulation needed was GRE but the interface just did not support higher MTUs!

jgrewal <j.grewal@in.spectranet.com> wrote:

Jumbo frame setting is possible on Cat-OS only not on 6509 with IOS
loaded....


----- Original Message -----
From: "Lars Higham"
To: "'jgrewal'" ; "'M. ELK'"
; ;
Sent: Tuesday, July 29, 2003 4:57 PM
Subject: RE: [MPLS-OPS]: L2 VPN over MPLS


> You should be able to enable jumbo frames; it says the MSFC can't route
> them, but maybe the MSFC2 can - I don't know -
>
> http://www.cisco.com/en/US/products/hw/switches/ps708/products_command_r
> eference_chapter09186a0080121daa.html#1098630
>
> -----Original Message-----
> From: jgrewal [mailto:j.grewal@in.spectranet.com]
> Sent: Tuesday, July 29, 2003 4:05 PM
> To: M. ELK; lhigham@yahoo.com; carlos@carlos.net; mpls-ops@mplsrc.com
> Subject: Re: [MPLS-OPS]: L2 VPN over MPLS
>
>
> i have tried various mtu size on router interface....but still problem
> persist....these routers are connected through 6509 Switch with
> Sup-Engine....i tried change mtu size on switch interface but thats not
> allowed...is there any other way i could solve this problem......
>
> J.Grewal
>
>
> ----- Original Message -----
> From: "M. ELK"
> To: ; ;
> ;
> Sent: Tuesday, July 29, 2003 3:55 PM
> Subject: RE: [MPLS-OPS]: L2 VPN over MPLS
>
>
> >
> > Lars
> >
> > By 8 or by 12 (the CTRL WORD) ? .
> >
> > Brgds
> >
> > >From: "Lars Higham"
> > >To: "'carlos'" , "'jgrewal'"
> > >,
> > >Subject: RE: [MPLS-OPS]: L2 VPN over MPLS
> > >Date: Tue, 29 Jul 2003 11:54:31 +0530
> > >
> > >Or you could increase the mtu for each ehternet and/or serial link by
>
> > >8 bytes
> > >
> > >-----Original Message-----
> > >From: carlos [mailto:carlos@carlos.net]
> > >Sent: Tuesday, July 29, 2003 10:28 AM
> > >To: jgrewal; mpls-ops@mplsrc.com
> > >Subject: Re: [MPLS-OPS]: L2 VPN over MPLS
> > >
> > >
> > >You need to figure out MTU/MRU between the routers and found out
> > >(sniff
> > >) which router the packet is really getting dropped.
> > >
> > >
> > >Carlos
> > >
> > >----- Original Message -----
> > >From: "jgrewal"
> > >To:
> > >Sent: Monday, July 28, 2003 4:32 AM
> > >Subject: [MPLS-OPS]: L2 VPN over MPLS
> > >
> > >
> > > > Dear All,
> > > >
> > > > I am tring L2VPN over MPLS on two cisco 7206 routers. I have
> > > > configured it right...vc is open at both end...if i connect two
> > > > PCs on
> > >
> > > > each end i could ping also...but i am unable to do ftp and http
> > > > through this vpn....seems like problem with MTU size...but i have
> > > > tried varioue MTU size but result same.....if anyone got solution
> > > > to this...would be gr8 help for me.....
> > > >
> > > >
> > > > Thanks & Regards
> > > >
> > > > J.S.Grewal
> > > >!
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