All things related to multicast

["Curtis, Bruce" <>]

On Apr 18, 2013, at 12:32 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.


 traceroute cspan.i2-multicast.northwestern.edu
traceroute to cspan.i2-multicast.northwestern.edu (129.105.223.8), 64 hops 
max, 52 byte packets
 1  a095.not-a-bridge.ndsu.nodak.edu (134.129.95.100)  11.252 ms  1.324 ms  
0.532 ms
 2  ndgate.nodak.edu (134.129.107.1)  0.434 ms  0.578 ms  0.281 ms
 3  northernlights.i2.ndsu.nodak.edu (134.129.49.22)  5.824 ms  5.083 ms  
5.049 ms
 4  infotech-gr-01-te-2-1.northernlights.gigapop.net (146.57.252.129)  6.627 
ms  5.093 ms  5.084 ms
 5  nwu-umn.northernlights.gigapop.net (146.57.253.33)  19.846 ms  15.661 ms  
16.560 ms
 6  750nlsd-3-te9-3.northwestern.edu (129.105.247.230)  16.070 ms  16.035 ms  
16.108 ms
 7  2020rdg-3-vln-696.northwestern.edu (129.105.253.155)  16.493 ms  17.933 
ms  16.289 ms
 8  lev-mdf-3-vln-4041.northwestern.edu (129.105.247.7)  16.424 ms  16.368 ms 
 16.428 ms
 9  lev-mdf-3-vln-4041.northwestern.edu (129.105.247.7)  16.445 ms !X *  
16.561 ms !X





> 
> 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
> 
> 

---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University