[j-nsp] fragmentation in GRE tunnel

[Ruslan A. Magomedov]

Hi Dan

So using an AS PIC packets will be reassembled at the end of a
tunnel and there are no problems with MPLS traffic also?

Thank you for your reply

Best regards
Ruslan

Thu, 3 May 2007 21:09:51 -0700
"Dan Rautio" <drautio at juniper.net> wrote:

> Hi Ruslan,
> 
> M-series tunnel pic there is no way to do what you want.  You can use
> the 'clear don't fragment' option on the m-series although it requires
> an AS pic.
> 
> - Dan
> 
> > -----Original Message-----
> > From: juniper-nsp-bounces at puck.nether.net 
> > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> > Ruslan A. Magomedov
> > Sent: Thursday, May 03, 2007 10:11 AM
> > To: Juniper Request Help List
> > Subject: [j-nsp] fragmentation in GRE tunnel
> > 
> > 
> > Hello
> > 
> > Could anybody help me with resolving this problem. Is it possible
> > to transmit packets, then tunnel MTU is greather than MTU of egress
> > interface, in other words using only GRE fragmentation (not ip
> > fragmentation). I have tried it on Juniper M-series with tunnel PICs
> > and have got no result. It looks like router does not reassemble
> > GRE packets, but it's doing fragmentation on egress 
> > interface. Is there
> > any acceptable solution to transmit large packets with out using
> > ordinary IP fragmentation. The final aim is transmitting of 
> > MPLS traffic
> > over GRE tunnel without limitations due to MTU value of 
> > transit network
> > 
> > Best regards
> > Ruslan
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> >