Re: false reporting?
At 11:56 PM 8/25/2004 -0500, you wrote:
> Looking at
> beaconserver.accessgrid.org:9999
> it reports R47 moonbeam.mcs.anl.gov 140.221.34.66
>
> however in the anl.gov border router
> sh ip mroute 233.2.171.1 does not show that source
> but rather
> (140.221.34.9, 233.2.171.1), 00:25:33/00:02:56, flags: FT
> Incoming interface: Vlan340, RPF nbr 0.0.0.0
> Outgoing interface list:
> Vlan341, Forward/Sparse, 00:00:06/00:02:53
> Vlan669, Forward/Sparse, 00:25:12/00:02:51
>
>
> moonbeam is running the old beacon on group 233.2.171.1
>
> Looking at
> http://beacon.dast.nlanr.net/
> it reports no receiver at anl.gov
>
> however in our border router I see
> (140.221.34.1, 233.4.200.23), 02:28:39/00:03:25, flags: TA
> Incoming interface: Vlan669, RPF nbr 130.202.222.73, Partial-SC
> Outgoing interface list:
> Vlan109, Forward/Sparse, 00:29:16/00:03:04
> Vlan800, Forward/Sparse, 02:28:27/00:03:04
>
> ws-video.mcs.anl.gov is running the new beacon on 233.4.200.23
>
> What is going on? Should I have any faith in the beacon reporting?
> lw
Hi, Linda -- If ws-video.mcs.anl.gov were running v0.9.58-6 instead of
v1.0-0, that would account for it -- The Central Beacon Server ignores all
traffic sent to it besides v1.0-0 traffic.
I just ran tcpdump on beacon.dast.nlanr.net (in reality,
morollan.ncsa.uiuc.edu), and I'm seeing no traffic at all for
ws-video.mcs.anl.gov at this point.
------------------------
Thu Aug 26 08:12:51 CDT 2004
[root@morollan root]# tcpdump -s1500 -X host ws-video.mcs.anl.gov
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 1500 bytes
0 packets captured
7 packets received by filter
0 packets dropped by kernel
[root@morollan root]# date
Thu Aug 26 08:14:47 CDT 2004
------------------------
Bob Olson has also complained to me that he's been having trouble seeing
ws-video.mcs.anl.gov and another ANL beacon (something for audio)
intermittently, but we haven't been able to determine anything conclusive
at this point. Sometimes they show up in the main matrix, and sometimes
they don't.
Looking forward to helping you track this down.
Mitch
--
Mitch Kutzko | mitch@dast.nlanr.net | mitch@ncsa.uiuc.edu | 217-333-1199
http://hobbes.ncsa.uiuc.edu/