FW: Multicast traffic Argonne -> PSC

[Michael E. Papka]

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>Date: Thu, 16 Jan 2003 10:47:11 -0600
>To: Abilene Network Operations Center <noc at abilene.iu.edu>
>From: Bill Nickless <nickless at mcs.anl.gov>
>Subject: Multicast traffic Argonne -> PSC
>Cc: mcast-support at accessgrid.org, ken Goodwin <goodwin at psc.edu>,
>         cunningham at psc.edu, AG-ADMIN at PSC.EDU, 
>"CPWSCA::BROWN"@vms.psc.edu
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>
>Problem statement:
>
>Source: 140.221.34.33 active at about 120 packets/second
>Group:  233.2.171.205
>Traffic is not making it from Argonne to PSC.
>
>Based on poking around on the proxy, I believe the path through Abilene
>for traffic from Argonne/MREN to PSC looks like this:
>
>PSC is connected to Abilene WASHng     so-1/3/0.0
>
>WASHng RPF for 140.221.34.33 is BGP to so-0/0/0.0, BACKBONE: OC-192 to 
>NYCMng
>
>NYCMng link to WASHng is               so-0/2/0.0, BACKBONE: OC192 to
WASHng
>NYCMng RPF for 140.221.34.33 is BGP to so-0/0/0.0, BACKBONE - OC-192 to 
>CHINng
>
>CHINng link to NYCMng is               so-0/2/0.0, BACKBONE: OC-192 to
NYCMng
>CHINng RPF for 140.221.34.33 is BGP to ge-1/0/0.0, MREN
>
>At the moment, NYCMng does have state for our source, with correct
>upstream (so-0/0/0.0 towards CHINng) and downstream (so-0/2/0.0 towards 
>WASHng) interfaces:
>
>show pim join 233.2.171.205/32 extensive
>
>[snip]
>
>Group: 233.2.171.205
>     Source: 140.221.34.33
>     Flags: sparse
>     Upstream interface: so-0/0/0.0
>     Upstream State: Local RP, Join to Source
>     Keepalive timeout: 170
>     Downstream Neighbors:
>         Interface: so-0/2/0.0
>             198.32.8.85 State: Join   Flags: S    Timeout: 207
>
>CHINng also has state for our source, but does NOT have the appropriate
>downstream neighbor interface towards NYCMng (so-0/2/0.0).  (It does have 
>the appropriate downstream neighbor interface towards IPLSng (so-0/0/0.0) 
>but that doesn't help NYCMng get traffic to WASHng and PSC).
>
>show pim join 233.2.171.205/32 extensive
>
>[snip]
>
>Group: 233.2.171.205
>     Source: 140.221.34.33
>     Flags: sparse
>     Upstream interface: ge-1/0/0.0
>     Upstream State: Local RP, Join to Source
>     Keepalive timeout: 205
>     Downstream Neighbors:
>         Interface: so-0/0/0.0
>             198.32.8.77 State: Join   Flags: S    Timeout: 209
>
>
>I wonder why the Join from NYCMng isn't being acted upon by CHINng?
>
>
>===
>Bill Nickless    http://www.mcs.anl.gov/people/nickless      +1 630 252
7390
>PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7
nickless at mcs.anl.gov
>







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mary Fritsch
Futures Laboratory
Math & Computer Science Division
Argonne National Laboratory
9700 South Cass Avenue
Bldg 221 / Room A151
Argonne, IL 60439 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Tel: 630.252.5297             Email: fritsch at mcs.anl.gov
Fax: 630.252.6333            URL:   www.mcs.anl.gov/~fritsch/
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~