From: Rajib Khan (rajib56666@yahoo.com)
Date: Sun Sep 25 2005 - 09:24:18 GMT-3
But we cannot configure strom control on the router either we can use "rate-limit" or "ip multicast rate-limit" to control multicast trafffic.
Now I am not sure how ip multicast rate-limit in or out command works.
I think If a member connected to R3 ethernet interface and wants to join a multicast group then
"rate-limit in" should be used
Ip multicast rate-limit in group-list 5 5000
and for "out" any traffic going to member located on R3 ethernet interface
Ip multicast rate-limit out group-list 5 5000
Please correct me if I am wrong.
Thanks
Raj
"Schulz, Dave" <DSchulz@dpsciences.com> wrote:
Thanks, Simon. That is great information!
Dave
-----Original Message-----
From: simon hart
To: Schulz, Dave; Nawaz, Ajaz ; nobody@groupstudy.com; Rajib Khan ;
ccielab@groupstudy.com
Sent: 9/25/2005 3:27 AM
Subject: RE: multicast rate-limit
Dave that's as maybe, but please refer to the Doc Cd on this matter:-
Note If a
multicast storm control suppression level is exceeded on a switch, all
traffic (multicast, unicast, and broadcast) is blocked until the
multicast traffic rate drops below the threshold. Only spanning-tree
packets are passed. If the broadcast or the unicast storm control
suppression level is exceeded, only that type of traffic is blocked
until the rate drops below the threshold.
Command Reference link
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550c
r/cli2.htm#wp3431922
cr/cli2.htm#wp3431922>
Configuration Guide link
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550s
cg/swtrafc.htm#wp1237812
scg/swtrafc.htm#wp1237812>
By using
Storm-control Unicast you will limit unicast
Storm-control broadcast you will limit broadcast
Storm-control multicast, and you will limit the lot (based upon Mcast
threshold)
This is a really important point that can you really trip you up
Simon
-----Original Message-----
From: Schulz, Dave [mailto:DSchulz@dpsciences.com]
Sent: 25 September 2005 02:33
To: simon hart ; Nawaz, Ajaz ; nobody@groupstudy.com; Rajib Khan ;
ccielab@groupstudy.com
Subject: RE: multicast rate-limit
There are separate options under the storm control for either unicast,
broadcast or multicast.
-----Original Message-----
From: simon hart
To: Schulz, Dave; Nawaz, Ajaz ; nobody@groupstudy.com; Rajib Khan ;
ccielab@groupstudy.com
Sent: 9/24/2005 6:39 PM
Subject: RE: multicast rate-limit
Point to note with storm control Multicast. When the threshold for
Mcast is
exceeded then all Unicast, broadcast and Mcast is blocked. Depending on
the
question, then storm-control multicast may not be a good option
Simon
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com
]On Behalf Of
Schulz, Dave
Sent: 24 September 2005 20:54
To: Nawaz, Ajaz ; nobody@groupstudy.com; Rajib Khan ;
ccielab@groupstudy.com
Subject: RE: multicast rate-limit
You also may want to keep the storm-control command in your backpocket,
when
needed to limit traffic types on your switch ports. Just an additional
thought.
Dave
-----Original Message-----
From: nobody@groupstudy.com
To: Rajib Khan; ccielab@groupstudy.com
Sent: 9/24/2005 2:40 PM
Subject: RE: multicast rate-limit
I think you are looking for this...
t>
Hth
Ajaz Nawaz
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com
] On Behalf Of
Rajib Khan
Sent: 24 September 2005 18:06
To: ccielab@groupstudy.com
Subject: multicast rate-limit
Hi Group,
Does any one know any good link for "ip multicast rate-limit". I just
want
to see some configuration example.
Thanks in advance
Raj
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