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Re: CSPAN and wider multicast question


Chronological Thread 
  • From: "Taylor, Scott J." <>
  • To: Ray Soucy <>
  • Cc: Laura Kristoff <>, wg-multicast <>
  • Subject: Re: CSPAN and wider multicast question
  • Date: Thu, 18 Apr 2013 19:04:22 +0000
  • Accept-language: en-US
  • Authentication-results: sfpop-ironport04.merit.edu; dkim=neutral (message not signed) header.i=none

Hi Ray,

We know they are using Uconn space rather than CEN space. That dates back
when they were behind UConn I believe and we never pushed much to get it
changed. Thanks for the reminder.

-Scott

On Apr 18, 2013, at 14:52, "Ray Soucy"
<>
wrote:

> 1 nox300gw1-vl-736-nox-umaine.nox.org (192.5.89.73) [AS 10578] 4
> msec 4 msec 4 msec
> 2 nox300gw1-peer-nox-internet2-192-5-89-222.nox.org (192.5.89.222)
> [AS 10578] 12 msec 8 msec 8 msec
> 3 ae-1.10.rtr.clev.net.internet2.edu (64.57.28.160) [AS 11537]
> [MPLS: Label 314448 Exp 0] 24 msec 24 msec 20 msec
> 4 ae-7.10.rtr.chic.net.internet2.edu (64.57.28.158) [AS 11537] 36
> msec 36 msec 36 msec
> 5 64.57.28.204 [AS 11537] 36 msec 36 msec 36 msec
> 6 abbt-mdf-6-xe-4-1-0-149.northwestern.edu (199.249.169.5) [AS 103]
> 36 msec 40 msec 36 msec
> 7 750nlsd-3-te9-3.northwestern.edu (129.105.247.230) [AS 103] 36
> msec 36 msec 40 msec
> 8 2020rdg-3-vln-696.northwestern.edu (129.105.253.155) [AS 103] 36
> msec 40 msec 36 msec
> 9 lev-mdf-6-vln-4042.northwestern.edu (129.105.247.9) [AS 103] 36
> msec 36 msec 36 msec
>
>
>
>
> I did check that global mcast is working ... One of the only SAP
> streams that I can get right now is the "Mystic Penguins" stream at:
>
> udp://@233.53.53.10:4484
>
> On a side note they're using an invalid GLOP group. It's being
> sourced from AS22742 and should be using 233.88.214.0
>
> I'm looking at you, UConn!
>
> :,(
>
> Cute penguin though!
>
> On Thu, Apr 18, 2013 at 1:32 PM, Laura Kristoff
> <>
> wrote:
>> Can someone who is not seeing it do a traceroute (or mtrace if possible) to
>> 129.105.223.8? There's at least one person off of NLR that is viewing
>> it... I'm wondering if there's an issue between MREN and us.
>>
>>
>>
>> On 4/18/2013 11:07 AM, Julian Y Koh wrote:
>>>
>>> Greetings all,
>>>
>>> We've gotten a report from Notre Dame that our CSPAN feeds at
>>> <http://www.i2-multicast.northwestern.edu/> are not watchable. They work
>>> for us here on campus, but can anyone provide some external verification
>>> one
>>> way or the other? Thanks in advance!!
>>>
>>> On a wider note, the "Whither multicast" thread from a little bit ago was
>>> interesting, but the specific question I have for the group is: would it
>>> be
>>> a huge hardship if our CSPAN streams went away?
>>
>>
>> --
>> Laura Kristoff
>> ()
>> IT Telecommunications and Network Services
>> 312-503-4094
>
>
>
> --
> Ray Patrick Soucy
> Network Engineer
> University of Maine System
>
> T: 207-561-3526
> F: 207-561-3531
>
> MaineREN, Maine's Research and Education Network
> www.maineren.net



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