Re: Storm control in 3550 and 3560 switches

Hi Lejoe,

  Thank you very much for confirming

Regards
Anantha Subramanian Natarajan

On Sun, Sep 13, 2009 at 10:25 PM, Lejoe <styran_at_gmail.com> wrote:

> Hi,
>
> It's different for 3560, the documentation states only multicast traffic
> is blocked for storm control multicast method.
>
> When the storm control threshold for multicast traffic is reached, all
> multicast traffic except control traffic, such as bridge protocol data unit
> (BDPU) and Cisco Discovery Protocol (CDP) frames, are blocked. However, the
> switch does not differentiate between routing updates, such as OSPF, and
> regular multicast data traffic, so both types of traffic are blocked.
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swtrafc.html
>
> Lejoe
>
> On Mon, Sep 14, 2009 at 10:01 AM, Anantha Subramanian Natarajan <
> anantha.natarajan_at_gravitant.com> wrote:
>
>> Hi All,
>>
>> My understanding on ,Multicast storm control on 3550 switch is as below
>>
>> "When the rate of multicast frames increased more than the specified
>> rate
>> on the Multicast storm-control configuration,it will block all multicast
>> frames exceeded and also even all unicast/broadcast traffic is dropped
>> until
>> the multicast rate on the port is decreased than the threshold
>> defined.Exceptions would be BPDU's and CDP frames".
>>
>> Is my above understanding right ?.If so ,my questions is
>>
>> Does the above statement is also true for 3560 switches.For some reason.I
>> couldn't find a reference on the 3560 config guide,unless I missed it.
>>
>> Thank you for the assistance.
>>
>> Regards
>> Anantha Subramanian Natarajan
>>
>>
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Received on Sun Sep 13 2009 - 23:34:49 ART