From: K S (kotiss@hotmail.com)
Date: Fri Aug 24 2007 - 13:28:03 ART
Hi Lim,
Config BPDUs nothing to do with hello time.
try this link http://www.cisco.com/warp/public/473/122.html
Regards,KS
>From: "Toh Soon, Lim" <tohsoon28@gmail.com>
>Reply-To: "Toh Soon, Lim" <tohsoon28@gmail.com>
>To: "Cisco certification" <ccielab@groupstudy.com>
>Subject: Which approach to change spanning-tree hello-time?
>Date: Fri, 24 Aug 2007 22:17:23 +0800
>
>Hi Group,
>
>I have a fundamental question to seek clarification.
>
>If the task requires you to reduce the number of Config BPDUs sent to half
>of the default value, I'd take it to mean increasing the STP hello timer to
>4 seconds.
>
>There's no indication which switch should be the root. I'd leave all bridge
>priority to default 32,768.
>
>How do you approach this task? I can think of two methods as follows:
>
>Method 1
>--------
>Pick any switch and configure the command:
>
>spanning-tree vlan 1-4094 root primary diameter 2 hello-time 4
>
>This has the side-effect of making this switch the root and thus start to
>advertise the new adjusted timers to the other switches.
>
>Method 2
>--------
>Identify the current root and only change the hello timer on it with the
>command:
>
>spanning-tree vlan 1-4094 hello-time 4
>
>Should I even adjust the forward-delay and max-age timers as well?
>
>
>Thank you.
>
>B.Rgds,
>Lim TS
>
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