Re: Portfast in Trunk port

end host or ASA/IPS trunking interface may require portfast to eliminate
STP timers.

On 5/5/2012 3:37 AM, CCIE KID wrote:
> Hi all
>
> I have a doubt in enabling Portfast in trunk port. My customer config has
> enabled Portfast in trunk port and i have no idea why we should enable it
> on trunk port and hat use it has. Yes Portfast is used for Host connected
> ports and it virtually doesn't go thru the STP port states such listening
> and learning and thereby goes to forwarding directly and also if there is
> any change in port status such as removing the PC or server or any other
> device, TCN BPDUs will not be generated. THis is the function of Portfast.
> So why would u enable Portfast on Trunk ports.
>
> So if the trunk port goes down, TCN BPDU won't be generated for that
> particular trunk port , and so the STP convergence will be affected with
> this ?
> Any thoughts on this ?
>
> Need experts advice on this ? Why do they do purposefully in real time ..
> Any reasons behind it

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Received on Sat May 05 2012 - 09:05:25 ART