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Re: Close but not yet there on I2 multicasts


Chronological Thread 
  • From: Amel Caldwell <>
  • To: Marshall Eubanks <>
  • Cc: TECH <>, <>, TECH <>, <>, Greg Shepherd <>, Matthew Davy <>, Hans Kuhn <>
  • Subject: Re: Close but not yet there on I2 multicasts
  • Date: Mon, 6 May 2002 07:33:50 -0700 (Pacific Daylight Time)
Just after I sent this, the mtraces would not work at all, now they are again:

uwbr2>mtrace 206.196.182.101 233.64.133.200
Type escape sequence to abort.
Mtrace from 206.196.182.101 to 198.107.150.52 via group 233.64.133.200
>From source (?) to destination (uwbr2-GE0-0.cac.washington.edu)
Querying full reverse path...
0 uwbr2-GE0-0.cac.washington.edu (198.107.150.52)
-1 uwbr2-GE0-0.cac.washington.edu (198.107.150.52) [AS 101] PIM/MBGP Reached
RP/Cor
e [206.196.176.0/21]
-2 hnsp1-wes-ge-0-0-0-0.pnw-gigapop.net (198.107.150.11) [AS 101] PIM
[206.196.182
.0/25]
uwbr2>mtrace 206.196.182.101 233.64.133.200
Type escape sequence to abort.
Mtrace from 206.196.182.101 to 198.107.150.52 via group 233.64.133.200
>From source (?) to destination (uwbr2-GE0-0.cac.washington.edu)
Querying full reverse path...
0 uwbr2-GE0-0.cac.washington.edu (198.107.150.52)
-1 uwbr2-GE0-0.cac.washington.edu (198.107.150.52) [AS 101] PIM/MBGP Reached
RP/Cor
e [206.196.176.0/21]
-2 hnsp1-wes-ge-0-0-0-0.pnw-gigapop.net (198.107.150.11) [AS 101] PIM
[206.196.182
.0/25]
uwbr2>sh ip msdp sa 233.64.133.200
MSDP Source-Active Cache - 2007 entries
(142.92.39.78, 233.64.133.200), RP 142.92.9.1, MBGP/AS 818, 00:19:05/00:05:57
(206.196.182.101, 233.64.133.200), RP 206.196.177.247, MBGP/AS 10886,
05:10:18/00:05
:57
uwbr2>sh ip mbgp 206.196.182.101
MBGP routing table entry for 206.196.176.0/21, version 2537
Paths: (1 available, best #1)
Advertised to non peer-group peers:
198.107.150.53 198.107.150.54
101 11537 10886
198.107.150.11 from 198.107.150.11 (198.107.151.11)
Origin IGP, localpref 3700, weight 100, valid, external, best
uwbr2>sh ip mbgp 206.196.182.101
MBGP routing table entry for 206.196.176.0/21, version 2537
Paths: (1 available, best #1)
Advertised to non peer-group peers:
198.107.150.53 198.107.150.54
101 11537 10886
198.107.150.11 from 198.107.150.11 (198.107.151.11)
Origin IGP, localpref 3700, weight 100, valid, external, best
uwbr2>mtrace 206.196.182.101 233.64.133.200
Type escape sequence to abort.
Mtrace from 206.196.182.101 to 198.107.150.52 via group 233.64.133.200
>From source (?) to destination (uwbr2-GE0-0.cac.washington.edu)
Querying full reverse path...
0 uwbr2-GE0-0.cac.washington.edu (198.107.150.52)
-1 uwbr2-GE0-0.cac.washington.edu (198.107.150.52) [AS 101] PIM/MBGP Reached
RP/Cor
e [206.196.176.0/21]
-2 hnsp1-wes-ge-0-0-0-0.pnw-gigapop.net (198.107.150.11) [AS 101] PIM
[206.196.176
.0/21]
-3 abilene-pnw.pnw-gigapop.net (198.48.91.78) [AS 101] PIM/MBGP Reached
RP/Core [20
6.196.176.0/21]
-4 dnvr-sttl.abilene.ucaid.edu (198.32.8.50) [AS 11537] PIM/MBGP Reached
RP/Core [2
06.196.176.0/21]
-5 kscy-dnvr.abilene.ucaid.edu (198.32.8.14) [AS 11537] PIM/MBGP Reached
RP/Core [2
06.196.176.0/21]
-6 ipls-kscy.abilene.ucaid.edu (198.32.8.6) [AS 11537] PIM/MBGP Reached
RP/Core [20
6.196.176.0/21]
-7 clev-ipls.abilene.ucaid.edu (198.32.8.26) [AS 11537] PIM/MBGP Reached
RP/Core [2
06.196.176.0/21]
-8 nycm-clev.abilene.ucaid.edu (198.32.8.30) [AS 11537] PIM/MBGP Reached
RP/Core [2
06.196.176.0/21]
-9 wash-nycm.abilene.ucaid.edu (198.32.8.45) [AS 11537] PIM/MBGP Reached
RP/Core [2
06.196.176.0/21]
-10 wash-abilene-oc48.maxgigapop.net (206.196.177.1) [AS 10886] PIM Reached
RP/Core
[206.196.176.0/21]


On Mon, 6 May 2002, Amel Caldwell wrote:

>I am not getting a stream at U Washington. Here's some stats from our border
>router:
>
>Amel
>
>(One interesting thing is the two mtraces; first one gives up sayig route
>must
>have changed; second one looks identical and works).
>
>uwbr2>sh ip msdp sa 233.64.133.200
>MSDP Source-Active Cache - 2044 entries
>(128.182.61.124, 233.64.133.200), RP 128.182.13.13, MBGP/AS 1206,
>00:18:28/00:01:45
>(142.92.39.78, 233.64.133.200), RP 142.92.9.1, MBGP/AS 818, 00:07:07/00:05:33
>(206.196.182.101, 233.64.133.200), RP 206.196.177.247, MBGP/AS 10886,
>04:58:20/00:05
>:33
>uwbr2>sh ip mbgp 206.196.182.101
>MBGP routing table entry for 206.196.176.0/21, version 2537
>Paths: (1 available, best #1)
> Advertised to non peer-group peers:
> 198.107.150.53 198.107.150.54
> 101 11537 10886
> 198.107.150.11 from 198.107.150.11 (198.107.151.11)
> Origin IGP, localpref 3700, weight 100, valid, external, best
>uwbr2>mtrace 206.196.182.101 233.64.133.200
>Type escape sequence to abort.
>Mtrace from 206.196.182.101 to 198.107.150.52 via group 233.64.133.200
>From source (?) to destination (uwbr2-GE0-0.cac.washington.edu)
>Querying full reverse path... * switching to hop-by-hop:
> 0 uwbr2-GE0-0.cac.washington.edu (198.107.150.52)
>-1 uwbr2-GE0-0.cac.washington.edu (198.107.150.52) [AS 101] PIM/MBGP Reached
>RP/Cor
>e [206.196.176.0/21]
>-2 hnsp1-wes-ge-0-0-0-0.pnw-gigapop.net (198.107.150.11) [AS 101] PIM
>[206.196.176
>.0/21]
>-3 abilene-pnw.pnw-gigapop.net (198.48.91.78) [AS 101] PIM/MBGP Reached
>RP/Core [20
>6.196.176.0/21]
>-4 dnvr-sttl.abilene.ucaid.edu (198.32.8.50) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-5 kscy-dnvr.abilene.ucaid.edu (198.32.8.14) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-6 ipls-kscy.abilene.ucaid.edu (198.32.8.6) [AS 11537] PIM/MBGP Reached
>RP/Core [20
>6.196.176.0/21]
>-7 clev-ipls.abilene.ucaid.edu (198.32.8.26) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-8 nycm-clev.abilene.ucaid.edu (198.32.8.30) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-9 wash-nycm.abilene.ucaid.edu (198.32.8.45) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-10 wash-abilene-oc48.maxgigapop.net (206.196.177.1) [AS 10886] PIM Reached
>RP/Core
>[206.196.176.0/21]
>-11 Route must have changed...try again
>
>uwbr2>mtrace 206.196.182.101 233.64.133.200
>Type escape sequence to abort.
>Mtrace from 206.196.182.101 to 198.107.150.52 via group 233.64.133.200
>From source (?) to destination (uwbr2-GE0-0.cac.washington.edu)
>Querying full reverse path...
> 0 uwbr2-GE0-0.cac.washington.edu (198.107.150.52)
>-1 uwbr2-GE0-0.cac.washington.edu (198.107.150.52) [AS 101] PIM/MBGP Reached
>RP/Cor
>e [206.196.176.0/21]
>-2 hnsp1-wes-ge-0-0-0-0.pnw-gigapop.net (198.107.150.11) [AS 101] PIM
>[206.196.176
>.0/21]
>-3 abilene-pnw.pnw-gigapop.net (198.48.91.78) [AS 101] PIM/MBGP Reached
>RP/Core [20
>6.196.176.0/21]
>-4 dnvr-sttl.abilene.ucaid.edu (198.32.8.50) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-5 kscy-dnvr.abilene.ucaid.edu (198.32.8.14) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-6 ipls-kscy.abilene.ucaid.edu (198.32.8.6) [AS 11537] PIM/MBGP Reached
>RP/Core [20
>6.196.176.0/21]
>-7 clev-ipls.abilene.ucaid.edu (198.32.8.26) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-8 nycm-clev.abilene.ucaid.edu (198.32.8.30) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-9 wash-nycm.abilene.ucaid.edu (198.32.8.45) [AS 11537] PIM/MBGP Reached
>RP/Core [2
>06.196.176.0/21]
>-10 wash-abilene-oc48.maxgigapop.net (206.196.177.1) [AS 10886] PIM Reached
>RP/Core
>[206.196.182.101/32]
>uwbr2>
>uwbr2>sh ip mroute 233.64.133.200 count
>IP Multicast Statistics
>392 routes using 210388 bytes of memory
>45 groups, 7.71 average sources per group
>Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
>Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
>
>Group: 233.64.133.200, Source count: 3, Group pkt count: 672
> RP-tree: Forwarding: 10/0/95/0, Other: 2/0/0
> Source: 128.208.20.219/32, Forwarding: 482/1/71/0, Other: 1/0/0
> Source: 142.92.39.78/32, Forwarding: 180/1/66/0, Other: 1/0/0
> Source: 206.196.182.101/32, Forwarding: 0/0/0/0, Other: 0/0/0
>
>
>On Mon, 6 May 2002, Marshall Eubanks wrote:
>
>>On Mon, 06 May 2002 07:56:44 -0400
>> "Marshall Eubanks"
>> <>
>> wrote:
>>> Dear Jerry;
>>>
>>> Thanks for all of your help setting up the multicasts last night. I
>>> feel that we are close but not yet there on sending these out. At least,
>>> we can receive these from our offices.
>>>
>>> We have a test loop up. I would appreciate people with I2 multicast
>>> connectivity trying to join the stream and sending reception reports.
>>>
>>> http://www.multicasttech.com/internet2/
>>
>>Someone out there is getting this - we have had RR's from U Washington and a
>>host of MSDP SA's from Canarie
>>
>>multicasttech-1>show ip msdp sa | include 233.64.133.209
>>(142.92.1.1, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818, 00:09:58/00:04:38
>>(142.92.10.5, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818, 00:09:58/00:04:38
>>(142.92.10.9, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818, 00:09:58/00:04:38
>>(142.92.10.18, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818,
>>00:09:02/00:05:34
>>(142.92.10.57, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818,
>>00:09:58/00:04:38
>>(142.92.10.69, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818,
>>00:09:58/00:04:38
>>(142.92.10.89, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818,
>>00:09:58/00:04:38
>>(142.92.132.1, 233.64.133.209), RP 142.92.9.1, MBGP/AS 818,
>>00:09:58/00:04:38
>>(205.189.32.217, 233.64.133.209), RP 205.189.32.248, MBGP/AS 6509,
>>00:09:58/00:03:38
>>(206.196.182.102, 233.64.133.209), RP 206.196.177.247, MBGP/AS 10886,
>>10:36:43/00:01:39
>>
>>Still no stream for us, though.
>>
>>Marshall
>>
>>>
>>> Here are the symptoms.
>>>
>>> 1.) From 63.105.122.8 I _cannot_ see the multicasts.
>>>
>>> [tme@hendrix
>>> dump]$ rtpdump -F ascii 233.64.133.201/7012
>>> [tme@hendrix
>>> dump]$ rtpdump -F ascii 233.64.133.209/7070
>>> [tme@hendrix
>>> dump]$ rtpdump -F ascii 233.64.133.200/7010
>>>
>>> 2.) I can see
>>> the SA's from the 63.105.122.1 router
>>>
>>> multicasttech-1>show ip msdp sa | include 233.64.133.209
>>> (206.196.182.102, 233.64.133.209), RP 206.196.177.247, MBGP/AS 10886,
>>> 09:04:03/00:05:52
>>> 3.) I can now see the hotel address block in MBGP
>>>
>>>
>>> multicasttech-1>show ip mbgp 206.196.182.102
>>> BGP routing table entry for 206.196.176.0/21, version 1354851
>>> Paths: (3 available, best #3)
>>> Advertised to non peer-group peers:
>>> 63.251.101.52
>>> 145 11537 10886
>>> 166.61.8.89 from 166.61.8.89 (204.147.128.136)
>>> Origin IGP, localpref 100, valid, external
>>> Community: 9503719 713424897 756089782
>>> 1239 11537 10886
>>> 160.81.38.225 from 160.81.38.225 (144.228.242.54)
>>> Origin IGP, metric 73, localpref 100, valid, external
>>> 15076 1239 11537 10886
>>> 216.177.55.5 from 216.177.55.5 (216.177.32.254)
>>> Origin IGP, localpref 100, weight 500, valid, external, best
>>>
>>> 4.) I can mtrace all the way into the MAX gigapop core
>>>
>>> multicasttech-1>
>>> multicasttech-1>mtrace
>>> Source address or name: 206.196.182.102
>>> Destination address or name: 63.105.122.1
>>> Group address or name: 233.64.133.209
>>> Multicast request TTL [64]:
>>> Response address for mtrace:
>>> Type escape sequence to abort.
>>> Mtrace from 206.196.182.102 to 63.105.122.1 via group 233.64.133.209
>>> From source (?) to destination (dmz-mct2.multicasttech.com)
>>> Querying full reverse path...
>>> 0 dmz-mct2.multicasttech.com (63.105.122.1)
>>> -1 dmz-mct2.multicasttech.com (63.105.122.1) PIM/MBGP Reached RP/Core
>>> [206.196.176.0/21]
>>> -2 216.177.55.5 PIM/MBGP Reached RP/Core [206.196.176.0/21]
>>> -3 208.1.115.206 [AS 1239] PIM Prune sent upstream [default]
>>> -4 63.173.24.173 [AS 1239] PIM/MBGP [206.196.176.0/21]
>>> -5 sl-bb20-rly-14-2.sprintlink.net (144.232.19.121) [AS 1239] PIM/MBGP
>>> [206.196.176.0/21]
>>> -6 sl-bb22-sj-5-1.sprintlink.net (144.232.9.125) [AS 1239] PIM/MBGP
>>> [206.196.176.0/21]
>>> -7 sl-bb21-stk-11-0.sprintlink.net (144.232.8.41) [AS 1239] PIM/MBGP
>>> [206.196.176.0/21]
>>> -8 sl-bb22-stk-15-0.sprintlink.net (144.232.4.242) [AS 1239] PIM/MBGP
>>> [206.196.176.0/21]
>>> -9 sl-w1-mae-1-0-0.sprintlink.net (144.232.8.1) [AS 1239] PIM/MBGP
>>> Reached
>>> RP/Core [206.196.176.0/21]
>>> -10 198.9.201.205 [AS 24] PIM/MBGP Reached RP/Core [206.196.176.0/21]
>>> -11 198.32.8.73 [AS 11537] PIM/MBGP Reached RP/Core [206.196.176.0/21]
>>> -12 dnvr-snva.abilene.ucaid.edu (198.32.8.2) [AS 11537] PIM/MBGP Reached
>>> RP/Core
>>> [206.196.176.0/21]
>>> -13 kscy-dnvr.abilene.ucaid.edu (198.32.8.14) [AS 11537] PIM/MBGP Reached
>>> RP/Core [206.196.176.0/21]
>>> -14 ipls-kscy.abilene.ucaid.edu (198.32.8.6) [AS 11537] PIM/MBGP Reached
>>> RP/Core
>>> [206.196.176.0/21]
>>> -15 clev-ipls.abilene.ucaid.edu (198.32.8.26) [AS 11537] PIM/MBGP Reached
>>> RP/Core [206.196.176.0/21]
>>> -16 nycm-clev.abilene.ucaid.edu (198.32.8.30) [AS 11537] PIM/MBGP Reached
>>> RP/Core [206.196.176.0/21]
>>> -17 wash-nycm.abilene.ucaid.edu (198.32.8.45) [AS 11537] PIM/MBGP Reached
>>> RP/Core [206.196.176.0/21]
>>> -18 wash-abilene-oc48.maxgigapop.net (206.196.177.1) [AS 10886] PIM
>>> Reached
>>> RP/Core [206.196.182.102/32]
>>> multicasttech-1>
>>>
>>> 5.) At least last night, we could get multicasts _from_ the meeting site.
>>>
>>> Regards
>>> Marshall
>>>
>>
>>
>
>


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