From: Petr Lapukhov (petr@internetworkexpert.com)
Date: Mon Jun 26 2006 - 01:44:09 ART
Sami,
the default behavior is to "filter" exceeding traffic. You may also
specify shutdown as over-threshold action, or send a trap,
additionally.
Storm-control is, essentially, a simple form of policing (with special
exceptions):
<DocCD>
Storm control (or traffic suppression) monitors packets passing from an
interface to the switching bus and determines if the packet is unicast,
multicast, or broadcast. The switch counts the number of packets of a
specified type received within the 1-second time interval and compares the
measurement with a predefined suppression-level threshold.
</DocCD>
Also note:
<DocCD>
* *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.
<DocCD>
-- Petr Lapukhov, CCIE #16379 petr@internetworkexpert.comInternetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Outside US: 775-826-4344
2006/6/25, Sami <sy1977@gmail.com>: > > Group, > > What is default behaviour on 3550 let us say we configure > strom-control multicast 50% on a port. Will it be automatically shutdown > after 50% or it will be up but go into blocking state? > > Thanks > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Jul 01 2006 - 07:57:33 ART