All things related to multicast

[Marshall Eubanks <>]

Hello All;

   Here is what I see about the RAMEN multicast attacks as of today :

0.) The last storm I know we received was at
*Jan 26 08:08:26: %SYS-3-CPUHOG: Task ran for 2700 msec (33/30), process = 
MSDP Process, PC = 60A20AC0.

1.) The msdp rate limits we applied seem to be working reasonably well. This 
means that it
is harder to monitor the storms from here - no CPUHOG messages. (The above 
came through a tunnel,
which wasn't rate limited.)

2.) The Mantra pages

http://www.caida.org/tools/measurement/Mantra/

must filter out the msdp storms, as they show none since last
Monday, and I know there have been some since.

So we no longer have a good handle on the number of these attacks.

3.) MSDP acitivity is down :

Sat Jan 20 12:15:26 EST 2001
    Total entries: 1667
# of AS's with sources : 102

Mon Jan 29 11:22:48 EST 2001
    Total entries: 1428
# of AS's with sources :  79

4.) NLANR accessgrid status seems poorer :

Time: Sun Jan 21 09:36:15 CST 2001
8 out of 42 beacon receivers cannot see our beacon

Time:Mon Jan 29 10:42:16 CST 2001
14 out of 46 beacon receivers cannot see our beacon

So, although I have received NO reports of people taking multicast off the 
air because of the storms,
I strongly suspect that this has indeed happened.
--
                                 Regards
                                 Marshall Eubanks



T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
Phone : 703-293-9624
Fax     : 703-293-9609
e-mail : 

     


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