[c-nsp] Storm Control on Catalsyt 2950G

matthew zeier mrz at velvet.org
Sun Dec 24 23:24:45 EST 2006


Take a look at "errdisable recovery cause ?" from global config.

Samit Jana wrote:
> Hi all,
> 
> We are running wireless network and every access point is terminated in the 
> Catalyst 2950G ports.
> 
> I am planning to use the storm control feature based on pps on all the port 
> and err-disable the port and send traps sametime, if it detects the storm 
> once the  rising threshold exceeds and re-enable the port if falling 
> threshold meets. However I found that 2950 administratively shutdown the port 
> and never checks for the falling threshold. 
> 
> http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a00800d6a38.html#xtocid1
> 
> "Storm control uses rising and falling thresholds to block and then restore 
> the forwarding of broadcast, unicast, or multicast packets"
> 
> But i don't see the restoration process
> 
> "Select the shutdown keyword to error-disable the port during a storm"
> It doesn't err-disable the port it shutdown the port and manually need to do 
> the no shut.
> 
> Any suggestion? or am i overlooking something else?
> 


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