Re: Portfast in Trunk port

Avaya IP phones :)

On Fri, May 4, 2012 at 4:05 PM, Alexei Monastyrnyi <alexeim73_at_gmail.com> wrote:
> 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 Fri May 04 2012 - 16:23:00 ART