[AG-TECH] FYI and request for beacon runners

Robert Olson olson at mcs.anl.gov
Wed May 30 07:08:57 CDT 2001

 From the multicast world. Hm. Perhaps the beacon should have a 
contact-address field kept with it, since a valid email address may not map 
to the beacon host..

>Date: Tue, 29 May 2001 17:37:10 -0700 (PDT)
>From: almeroth at cs.ucsb.edu (Kevin C. Almeroth)
>To: wg-multicast at internet2.edu
>Subject: fwd
>Sender: owner-wg-multicast at internet2.edu
> >>To: wg-multicast at internet2.edu
> >>Subject: Beacons, in-addr.arpa and forward-DNS
> >>From: Havard Eidnes <he at nordu.net>
> >>Hi,
> >>
> >>I started looking a bit closer at the accessgrid beacon multicast
> >>reachability status, with a view towards finding out what is causing
> >>some of the reachability problems my beacon is experiencing.
> >>
> >>I noticed that the accessgrid beacon status page now hsa 5 beacons
> >>which apparently do not have an in-addr.arpa DNS registration, which
> >>looks a little lame.
> >>
> >>Furthermore, I found at least two beacons that I have connectivity
> >>problems with (nephilim.sprintlink.net and vogt.sprintlink.net)
> >>where there does not exist a name-to-IP-address mapping for these
> >>names.  Needless to say, this creates somewhat of a problem when it
> >>comes to debugging the connectivity problems from my end of things.
> >>
> >>Furthermore, it appears that the user/host combinations are similar
> >>to e-mail addresses -- I assumed that is the intent.  I'll however
> >>bet that attempts at sending e-mail to the beacon identifiers would
> >>generate quite a number of bounces, something which again makes
> >>debugging more difficult than it otherwise can be.
> >>
> >>
> >>I'll therefore appeal to those of you who run beacons on the
> >>accessgrid group to at least make sure that reverse *and* forward
> >>mappings for the beacon IP addresses are consistent with reality,
> >>and that such mappings exist.
> >>
> >>I'm not sure about whether it should be possible to send e-mail to
> >>the beacon identifiers (for what it's worth, it is possible to send
> >>e-mail to my beacon identifier).
> >>
> >>Secondly, I would like to get in touch with the administrator of the
> >>sprintlink.net participant beacons, to get the IP addresses of the
> >>participating beacons, and so that we can (off-line) look into what
> >>is causing our connectivity problems; pointers or replies
> >>appreciated.
> >>
> >>Best regards,
> >>
> >>- Håvard
> >>
> >>
> >>

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