[AG-TECH] USM/MSU Multicast Setup

Bill Nickless nickless at mcs.anl.gov
Thu May 17 16:08:19 CDT 2001

At 02:24 PM 5/17/2001 -0500, David Sliman wrote:
>Bill, I have the beacon running on a Linux box at Stennis Space Center,
>crow.ssc.usm.edu and on my Win98 laptop, dsliman.otters.usm.edu.  They 
>both show up
>on the web pages.  I'm currently working on the main campus.  When I bring 
>up the
>BeaconViewer on my PC, I get "Server reply error."  I am going to recheck my
>settings on our Cisco router to see if I put in anything wrong.  Do you or 
>else have any suggestions.

Hi David,

Don't try the beacon viewer; the number of sources exceeds its capacity.

Go to http://beaconserver.accessgrid.org:9999

Or, to see a subset, go to


and pick the sources you're interested in seeing.

Now, with respect to multicast service to usm.edu.  At this point it looks 
like BGP NLRI=Multicast is not yet properly configured between you and 
Abilene.  Here's what the Indianapolis Abilene Core node sees on the 
peering with you:

>BGP neighbor is, remote AS 16430, external link
>  Description: Center for Higher Learning (Mississippi via DREN), 
> davidsliman at usm.edu, 601-266-4004
>  Index 2, Offset 0, Mask 0x4
>   connector peer-group member
>   Inbound soft reconfiguration allowed
>   NEXT_HOP is always this router
>   Community attribute sent to this neighbor
>   BGP version 4, remote router ID
>   BGP state = Established, table version = 286721, up for 22:34:01
>   Last read 00:00:02, last send 00:00:09
>   Hold time 180, keepalive interval 60 seconds
>   Neighbor NLRI negotiation:
>     Configured for unicast and multicast routes
>     Peer did not negotiate nlri
>     Exchanging unicast routes only

There does not appear to be an MSDP peering between you and Abilene.
There does not appear to be a PIM-SM adjacency between you and Abilene.

I would recommend looking at


for examples of how you need to configure your Abilene peering router to 
turn on multicast out of your network, including Multiprotocol BGP, MSDP, 
and PIM-Sparse Mode.

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

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