DAST: Multicast Beacon - NA's and RRs on central server report - aronson --at-- nlm.nih.gov
>Date: Fri, 18 Nov 2005 16:16:03 -0600
>To: aronson@nlm.nih.gov
>Subject: DAST: Multicast Beacon - NA's and RRs on central server report -
aronson --at-- nlm.nih.gov
>
>
>Contacting DAST re: Request for information about Multicast Beacon
>From: Jules Aronson <aronson --at-- nlm.nih.gov>
>
>Subject: NA's and RRs on central server report
>
>Question/Comment:
>We are running two beacons, jules-new-sun.nlm.nih.gov and
lhclxsm2.nlm.nih.gov. In both cases the columns assocated with these
beacons are NA's. The local file, frac_loss.html show entries in the
respective columns, so other participants are seeing our beacon and sending
RTCP packets with that information. (or so I think).
>We checked the multicast flow and find that we are sending multicast
packets in the group 233.4.200.18 out of our Internet2 router and the local
PIM RP and the one at our GIGapop (MAX) has corresponding entries for the
sources of our beacons. Thus we are sure that the multicast packets are
being broadcast from our beacons.
>
>We are running version 1.3 of the beacon software.
>
>My question are:
>
>1. Why do we and some others have NA columns on the central server?
>2. Why do some beacons have very low RR's?
>3. Why does our own beacons have differnent RR's, say one at 500 and the
other at 1200?
>
>
>
>
--
Mitch Kutzko | mitch@dast.nlanr.net | mitch@ncsa.uiuc.edu | 217-333-1199
Project: http://dast.nlanr.net | Personal: http://hobbes.ncsa.uiuc.edu