Portfast bpdu-guard vs bpdu-guard

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Apr 13th, 2007
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What is the difference between these two commands?

set spantree bpdu-guard mod/port {enable | disable | default}


set spantree portfast bpdu-guard mod/port {enable | disable | default}

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Francois Tallet Fri, 04/13/2007 - 10:37
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None as far as I know (I'm not catos expert though). Bpduguard was initially based on portfast. It was subsequently modified to be *not* dependent on portfast (at least for its port configuration). I guess the portfast version should be deprecated.

Regards,

Francois

Vishwa.Mishra@u... Wed, 04/18/2007 - 16:31
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Well as far as i know,if the portfast is applied on the access port and you connect a switch ,there is scope for loop to exists since the port direcly goes into forwarding state,if we apply bpdu guard along with the portfast ,the port will go into err-disable as soon as it will receive a BPDU.

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