NCSA/ANL multicast
Linda Winkler
winkler at mcs.anl.gov
Thu Jul 1 19:10:19 CDT 1999
I do not see
141.142.220.60 in the group table on bluto.
It would be helpful to know what protocols NCSA is using to peer with the vBNS.
lw
At 03:18 PM 7/1/99 -0500, Robert Olson wrote:
>At 03:01 PM 7/1/99 -0500, you wrote:
>>I don't know why detect was even on that list. I've turned off its
>>multicast SAP listener and now the mtraces look much more sane.
>
>Cool. Traces do look better, but we're still not seeing video from niri. A
>tcpdump shows no traffice at all from niri.
>
>Stuart's getting some odd mtraces, he's going to send them along to ag-tech.
>
>Oddly (perhaps), audio is getting through, with a lot of dropouts. Maybe
>that's the melting router that bill posited, or bandwidth limits in place
>somewhere?
>
>--bob
>
>(dyfrig) % mtrace -t 127 niri.ncsa.uiuc.edu 224.2.177.155 dyfrig
>Mtrace from 141.142.220.60 to 140.221.9.172 via group 224.2.177.155
>Querying full reverse path... * switching to hop-by-hop:
> 0 dyfrig.mcs.anl.gov (140.221.9.172)
> -1 destiny-11.mcs.anl.gov (140.221.11.253) PIM thresh^ 6 [default]
> -2 bluto.ctd.anl.gov (130.202.128.1) Unknown protocol code 8 thresh^ 0
> -3 cs-dng.anchor.anl.gov (192.5.170.130) Unknown protocol code 8
>thresh^ 0 Reached RP/Core
> -4 * * cs-atm0-0-11.ncsa.vbns.net (204.147.129.245) PIM/Static thresh^ 0
> -5 * * charlie-atm0-5.ncsa.uiuc.edu (141.142.11.2) PIM thresh^ 8
> -6 * * pigpen-atm0-10.ncsa.uiuc.edu (141.142.11.149) PIM thresh^ 0
> -7 niri.ncsa.uiuc.edu (141.142.220.60)
>Round trip time 12 ms; total ttl of 10 required.
>
>Waiting to accumulate statistics... Results after 10 seconds:
>
> Source Response Dest Overall Packet Statistics For Traffic
>From
>141.142.220.60 140.221.9.172 Packet 141.142.220.60 To 224.2.177.155
> v __/ rtt 79 ms Rate Lost/Sent = Pct Rate
>141.142.220.120
>141.142.11.149 pigpen-atm0-10.ncsa.uiuc.edu
> v ^ ttl 1 31 pps 0/47 = 0% 4 pps
>141.142.11.150
>141.142.11.2 charlie-atm0-5.ncsa.uiuc.edu
> v ^ ttl 10 4 pps 0/47 = 0% 4 pps
>141.142.11.1
>204.147.129.245 cs-atm0-0-11.ncsa.vbns.net
> v ^ ttl 10 4 pps 0/47 = 0% 4 pps
>204.147.129.246
>192.5.170.130 cs-dng.anchor.anl.gov Reached RP/Core
> v ^ ttl 10 0 pps ?/47 4 pps
>192.5.170.129
>130.202.128.1 bluto.ctd.anl.gov
> v ^ ttl 10 927 pps 0/0 = --% 0 pps
>130.202.128.5
>140.221.11.253 destiny-11.mcs.anl.gov
> v \__ ttl 12 16 pps
>140.221.9.172 140.221.9.172
> Receiver Query Source
>
>(dyfrig) % mtrace -t 127 dyfrig 224.2.177.155 niri.ncsa.uiuc.edu
>Mtrace from 140.221.9.172 to 141.142.220.60 via group 224.2.177.155
>Querying full reverse path...
> 0 niri.ncsa.uiuc.edu (141.142.220.60)
> -1 pigpen-atm0-10.ncsa.uiuc.edu (141.142.11.149) PIM thresh^ 0 [default]
> -2 charlie-atm1-0-7.ncsa.uiuc.edu (141.142.11.150) PIM thresh^ 0
> -3 cs-atm0-0-12.ncsa.vbns.net (141.142.11.1) Unknown protocol code 8
>thresh^ 0
> -4 cs-atm0-0-6.dng.vbns.net (204.147.129.246) PIM/Static thresh^ 0
>Reached RP/Core
> -5 bluto-vbns.ctd.anl.gov (192.5.170.129) PIM thresh^ 32
> -6 destiny.mcs.anl.gov (130.202.128.5) PIM thresh^ 6
> -7 dyfrig.mcs.anl.gov (140.221.9.172)
>Round trip time 79 ms; total ttl of 34 required.
>
>Waiting to accumulate statistics... Results after 10 seconds:
>
> Source Response Dest Overall Packet Statistics For Traffic
>From
>140.221.9.172 224.0.1.32 Packet 140.221.9.172 To 224.2.177.155
> v __/ rtt 50 ms Rate Lost/Sent = Pct Rate
>140.221.11.253
>130.202.128.5 destiny.mcs.anl.gov
> v ^ ttl 7 1461 pps 0/3 = --% 0 pps
>130.202.128.1
>192.5.170.129 bluto-vbns.ctd.anl.gov Reached RP/Core
> v ^ ttl 34 580 pps 0/3 = --% 0 pps
>192.5.170.130
>204.147.129.246 cs-atm0-0-6.dng.vbns.net Reached RP/Core
> v ^ ttl 34 1444 pps 0/3 = --% 0 pps
>204.147.129.245
>141.142.11.1 cs-atm0-0-12.ncsa.vbns.net
> v ^ ttl 34 1156 pps 0/3 = --% 0 pps
>141.142.11.2
>141.142.11.150 charlie-atm1-0-7.ncsa.uiuc.edu
> v ^ ttl 34 1133 pps 1/3 = --% 0 pps
>141.142.11.149 pigpen-atm0-10.ncsa.uiuc.edu
> v \__ ttl 34 24 pps ?/2 0 pps
>141.142.220.60 140.221.9.172
> Receiver Query Source
>
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