From: steven.j.nelson@xxxxxx
Date: Sat Mar 30 2002 - 05:05:32 GMT-3
John
What kit are you using, is this on a Cat 6500 using IGMP II and an MSFC
perhaps.
I have seen issues like this with IGMP where MLS is turned on in the cat and
it seriously screws multicasting up.
Cheers
Steve
-----Original Message-----
From: John Neiberger [mailto:neiby@ureach.com]
Sent: 30 March 2002 04:24
To: ccielab@groupstudy.com
Subject: Multicast Pings
Take a look at this. When I ping a multicast address--using a
single packet--I get multiple replies from the same IP
addresses. Why would an end station respond more than once to
a single ping?
R6#ping 224.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2
seconds:
Reply to request 0 from 172.16.86.8, 44 ms
Reply to request 0 from 172.16.100.3, 236 ms
Reply to request 0 from 172.16.135.1, 152 ms
Reply to request 0 from 172.16.100.5, 144 ms
Reply to request 0 from 172.16.135.1, 144 ms
Reply to request 0 from 172.16.100.5, 136 ms
Reply to request 0 from 172.16.100.3, 136 ms
Reply to request 0 from 172.16.86.8, 80 ms
Reply to request 0 from 172.16.86.8, 76 ms
Reply to request 0 from 172.16.135.1, 72 ms
Reply to request 0 from 172.16.100.5, 68 ms
Reply to request 0 from 172.16.86.8, 56 ms
Reply to request 0 from 172.16.100.3, 52 ms
R6#
I've noticed this before but I didn't really think about it
much. Now I'm really wondering why this occurs.
Do any of you know?
Thanks,
John
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:26 GMT-3