Re: Portfast in Trunk port

From: Carlos G Mendioroz <tron_at_huapi.ba.ar>
Date: Fri, 04 May 2012 14:57:10 -0300

To connect a trunk to a host ? E.g. an ESXi ?

-Carlos

CCIE KID @ 04/05/2012 14:37 -0300 dixit:
> 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
>
>
>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net
Received on Fri May 04 2012 - 14:57:10 ART

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