[HECnet] ROOSTA routing problem

[Steve Davidson]

SG1: is down!   Licenses expired.   Sorry...   I'm working on it.

Update to follow!

-Steve 

-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of Johnny Billquist
Sent: Monday, December 26, 2011 9:50 AM
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] ROOSTA routing problem

On 2011-12-26 15.41, Bob Armstrong wrote:
I can't talk to SG1 from MIM either, and thus nothing beyond it.

    SG1 appears to be down (at least my connection to it isn't working,
either).

It sounds like we can declare SG1 down then, yes. :-)

And SG1 is currently acting as the next hop for a whole bunch of
areas, as
seen from area 1.

    Like what?   Most of these nodes should have redundant paths (that's
good,
remember :-) so it sounds like MIM's routing table is stale.

It don't really work that way always, unfortunately.

As far as MIM is concerned, SG1 is still up, no matter how defunct it 
is. It is still broadcasting routing information, and is still therefore

considered in the route selection, and it wins for a bunch of areas.
If SG1 would just go away, another path would be chosen, yes, but SG1 
has not gone away. It is just broken in some way making it appear to be 
ok from a routing point of view.

    Somebody really should make a diagram of the HECnet topology...

Yes, please! It would be very nice.

	Johnny