RE: traffic suppression - storm control 3560

From: Aaron <aaron1_at_gvtc.com>
Date: Thu, 2 Feb 2012 12:04:10 -0500

Thanks Michael/Paul, wow Mike, just back from passing the lab and already
giving back to the community ! die hard

Does bcast suppression affect mcast?

Does mcast suppression affect bcast?

If I did BOTH mcast and bcast traff suppression (aka storm control) on the
same interface, would I want to treat this in any special way? There is a 1
in the least significant bit of the most significant byte in a bcast
(fffff...) frame too.

Aaron

-----Original Message-----
From: Paul Negron [mailto:negron.paul_at_gmail.com]
Sent: Thursday, February 02, 2012 9:06 AM
To: Michael Kiefer; Aaron
Cc: Cisco certification
Subject: Re: traffic suppression - storm control 3560

I think Aaron understands that point very well.

 I think what he was asking was ....."Does the feature affect both types of
traffic in the same way"?

Is that correct Aaron?

Paul

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
> From: Michael Kiefer <mjkiefer_at_gmail.com>
> Reply-To: Michael Kiefer <mjkiefer_at_gmail.com>
> Date: Thu, 2 Feb 2012 08:56:56 -0500
> To: Aaron <aaron1_at_gvtc.com>
> Cc: Cisco certification <ccielab_at_groupstudy.com>
> Subject: Re: traffic suppression - storm control 3560
(I meant to say it has a 1 as the least significant bit of the most
significant byte.)
> 
> A multicast is a broadcast, but a broadcast is not a multicast.
> 
> Remember that the storm control features are layer 2 based.
> 
> Broadcast is FF:FF:FF:FF:FF:FF
> Mulicast starts with 01: for IPv4
> 
> http://en.wikipedia.org/wiki/Multicast_address
> 
> HTH,
> 
> Michael Kiefer
> 
> CCIE#34420 (R&S)
> 
> 
> 
> 
> 
> 
> 
> On Thu, Feb 2, 2012 at 8:39 AM, Aaron <aaron1_at_gvtc.com> wrote:
> 
>> Does bcast and mcast storm control have anything to do with each other or
>> are they treated completely separate?  Just wondering if there is any
>> subtleties or inter-relationships that bcast and mcast have with one
>> another
>> in 3560 storm control/traffic suppression.
>> 
>> 
>> 
>> Aaron
>> 
>> switch(config-if)#storm-control ?
>> 
>>  action     Action to take for storm-control
>> 
>>  broadcast  Broadcast address storm control
>> 
>>  multicast  Multicast address storm control
>> 
>>  unicast    Unicast address storm control
>> 
>> 
>> Blogs and organic groups at http://www.ccie.net
>> 
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
> 
> 
> Blogs and organic groups at http://www.ccie.net
> 
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
Received on Thu Feb 02 2012 - 12:04:10 ART

This archive was generated by hypermail 2.2.0 : Thu Mar 01 2012 - 11:46:56 ART