[j-nsp] Juniper MX240 to Alcatel SAS-M epipe

Eduardo Barrios Eduardo.Barrios at LCRA.ORG
Wed Aug 7 10:22:26 EDT 2013

It's a mixture of Alcatel and Juniper, we always use the lowest MTU 2102 (this is the MAX MTU on a 7705). Our M10s do 9192.  Even though we might have a primary path that was discovered @ 9192 we still have to take into account detours and secondary paths that might be 2102.


-----Original Message-----
From: Mark Tinka [mailto:mark.tinka at seacom.mu] 
Sent: Wednesday, August 07, 2013 9:14 AM
To: juniper-nsp at puck.nether.net
Cc: Eduardo Barrios; Tomasz Mikołajek
Subject: Re: [j-nsp] Juniper MX240 to Alcatel SAS-M epipe

On Wednesday, August 07, 2013 04:01:46 PM Eduardo Barrios

> We have a couple of VPLS instances b/t a Juniper M10i and
> an Alcatel7705. The difference seems to be 14.
> Unfortunately Alcatel does not have an
> "ignore-mtu-mismatch" switch.

Not sure what ALU do, but if it's anything like IOS, it'll
be a 14-byte difference from Junos.

If you own the backhaul (or have some measure of control
over it), just run 9,000 bytes or more and be done with it.


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