[HECnet] Multinet circuit costs

[Johnny Billquist]

Ok. So we do have a problem. Time to figure out what it is, then. I can most definitely say that multiple paths is not the problem. However, there could be some other problem with some machine/setup/paths/whatever that is more local to you Hans.

If it works talking to MIM, and you have the bridge running, then it becomes a question of which machines you have problems talking to, and we can check at both ends what the next hop is and reason if that is reasonable and correct.

	Johnny

On 2012-01-05 16.40, hvlems at zonnet.nl wrote:
Again, apologies for topposting: my cellphone is somewhat rude...

PST is UTC-8 (unless Bob lives in the Philippines, then it's UTC+8 :).

Yes I have problems wihile copying files from Legato and Star69 to Ozon.
Ozon is the area router for area 44 and uses the bridge software.
I can't access the Hecnet map but Legato has multiple paths and IIRC so does Star.
Ozon has no problem copying files from MIM or MUSIPC and both are connected with single paths (IIRC again).
Reading Bob's analysis I still think that multiple paths may lead to errors. Granted that circuit cost may fix this but right now it is, for me at least, not clear.
The area information in the output of show network/old on Ozon shows all areas and about 40% is more than 1 hop away and seen as reachable thru Legato.
Hans
-----Original Message-----
From: "Bob Armstrong"<bob at jfcl.com>
Sender: owner-hecnet at Update.UU.SE
Date: Thu, 5 Jan 2012 07:14:50
To:<hecnet at Update.UU.SE>
Reply-To: hecnet at Update.UU.SESubject: RE: [HECnet] Multinet circuit costs

Why? What is the percieved problem?

    I don't know about area 44, but I was talking to Hans on New Years Eve
about a problem where he could not copy files, while logged in to OZON, from
LEGATO (i.e. a "pull" transaction).   According to Hans, it fails with "acp
file or directory lookup failed".   If I did the same thing from my end (a
"push") it would start copying and actually create an empty file on OZON,
but then time out after a very long time with

	-RMS-F-SYS, QIO system service request failed
  	-SYSTEM-F-LINKABORT, network partner aborted logical link

Last I heard Hans was going to check the NETSERVER/FAL logs on his side for
any error messages, but that was New Years Eve and he was otherwise occupied
:-)

    I see this morning that Hans has actually created a file "TARGET.TXT" on
LEGATO (dated 6PM PST on 12/31 even - what time is that in the
Netherlands??) so maybe he's solved the problem.   If he did he didn't tell
me what he did.

    Hans also mentioned to me that he was having similar problems with the
node STAR69 and CANADA.   I think all this came up when Hans was trying to
write his HECnet crawler script to gather INFO.TXT files...

    I don't think this is related to the Multinet/Bridge configuration, but I
can't guarantee it.   One hidden "gotcha" in DECnet is that the circuit costs
are determined locally, so the routings don't have to be symmetrical (i.e.
the route from A->B might not be the same as the route from B->A).

    If somebody (Johnny??) wants to try to figure it out, be my guest -
GUEST/GUEST.   I'm a little busy at the moment and don't really have time to
look at it.

Bob