Re: Disable Spanning-tree

From: ron.wilkerson@gmail.com
Date: Mon Dec 22 2008 - 17:58:28 ARST


Portfast bypasses the initial phases of spanning tree, it does not disable it. It bypasses 2 or 3 out of the 5 phases.

-----Original Message-----
From: Lloyd Ardoin <Lloyd@TheWizKid.biz>

Date: Mon, 22 Dec 2008 13:42:41
To: ccielab@groupstudy.com<ccielab@groupstudy.com>
Subject: Disable Spanning-tree

Hi GS,

I was doing a Cisco ASET lab yesterday and came across a switching task that
basically said that hosts were connected to ports fa0/12 - 14 in VLAN 13 and
they wanted you to configure the ports in such a way to have them come up as
quickly as possible without turning off spanning-tree. My solution was to
reduce the timers for VLAN 13 to their minimums but the solution from Cisco
was to use the portfast command. I was under the impression that when you
applied the portfast command to a switchport it disabled spanning-tree for
that port. Is this a mis-understanding on my part?

thanks,
Lloyd

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