From: Kenneth Wygand (KWygand@customonline.com)
Date: Thu Jul 01 2004 - 10:03:05 GMT-3
k c,
Well let's think about this. Your issue is you want to limit the distribution of multicasts without running the risk of affecting OSPF. Can OSPF neighbors -only- communicate via Multicasts?
Ken
________________________________
From: nobody@groupstudy.com on behalf of k c
Sent: Thu 7/1/2004 5:13 AM
To: Richard Gallagher
Cc: ccielab@groupstudy.com
Subject: Re: Control Multicast Traffic
Then how can I control multicast storm but without affecting the ospf process assuming the following configuration:
R1 --- Cat35 (vlan 4) ---- R2.
f0/1(vlan4) --> R1
f0/2(vlan4) --> R2
f0/3-4(vlan4) --> other routers
Thanks
Richard Gallagher <rgallagh@cisco.com> wrote:
When you reach the limit for multicast, all traffic (broadcast + unicast
too) will be dropped until the mcast traffic falls below the configured
level:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12120ea2/3550scg/swtrafc.htm#wp1174641
When the rate of multicast traffic exceeds a set threshold, all incoming
traffic (broadcast, multicast, and unicast) is dropped until the level
drops below the threshold level. Only spanning-tree packets are
forwarded. When broadcast and unicast thresholds are exceeded, traffic
is blocked for only the type of traffic that exceeded the threshold.
Rich
On Thu, 2004-07-01 at 09:44, k c wrote:
> Hi Group,
>
> In Cat3550, if I use "storm-control multicast level 20" to control multicast storm. When the multicast traffic exceed the threshold, they are dropped so as the ospf packets? Any method to control multicast traffic but not affecting ospf process?
>
> Thanks.
>
>
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