[j-nsp] MTU question.. n00b

[Scott Morris]

That's because ISIS pads the hellos (or CAN pad them) to the MTU size.

Scott 

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Alex Rubenstein
Sent: Monday, November 28, 2005 9:15 AM
To: Niels Bakker
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] MTU question.. n00b


Call me crazy, (realising this is not Juniperish), I believe EIGRP keeps
track of "minimum MTU in path".

And, sometimes ISIS won't come up in case of MTU mismatch.



On Mon, 28 Nov 2005, Niels Bakker wrote:

> * junipertech at gmail.com (josh) [Sun 27 Nov 2005, 13:30 CET]:
>> i am wondering does changing the MTU affect routing protocol metric 
>> or its not part of the metric calculation ?
>
> Not in any IGP that I'm aware of.
>
> Be careful when changing it, though, OSPF won't form adjacencies in 
> the case of an MTU mismatch between peers.
>
>
> 	-- Niels.
>
>

--
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben Net Access
Corporation, 800-NET-ME-36, http://www.nac.net

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