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Re: IS-IS on FRR - Is Anyone Running It?


From: Jeremy Austin <jhaustin () gmail com>
Date: Fri, 3 Apr 2020 06:28:05 -0800

Mark,

I suggest you ask this directly on the FRR slack:

https://frrouting.slack.com/

I’m also interested to know who’s been trying FRR IS-IS in the wild. At
last check your former guess seemed to be correct and it wasn’t under
active development.

Regards
Jeremy Austin

On Thu, Apr 2, 2020 at 11:32 PM Mark Tinka <mark.tinka () seacom mu> wrote:

Hi all.

So I finally decided to start messing around with FRR for a native IS-IS
deployment for some of our FreeBSD-based Anycast services.

I hit an issue that I posted to the FRR list that hasn't progressed beyond
identifying a bug:

2020/03/21 03:12:36 ISIS: isis_send_pdu_bcast: sock_buff size 8192 is less
than output pdu size 9014 on circuit em0
2020/03/21 03:12:36 ISIS: [EC 67108865] ISIS-Adj (1): Send L2 IIH on em0
failed

This is being addressed here:

    https://github.com/FRRouting/frr/pull/6066

But my main question was if there was a command or setting in zebra.conf
and/or isisd.conf that I can use to define the MTU IS-IS should use to set
itself up, rather than being informed by what the interface currently runs
at. I've tried everything that is documented as well as stuff that isn't,
but nothing is accepted or recognized.

Either no one runs IS-IS on FRR, or much of the implementation is still
being developed and/or hasn't been tested in the wild, i.e., no traction.

I'm hoping there is someone on this list that has played with IS-IS on FRR
to point me in the right direction.

The setup is FRR 7.3 on FreeBSD-12.1. Thanks.


Mark.

-- 
Jeremy Austin
jhaustin () gmail com

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