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Need some clarification on STP
Guys,
Can you please spend some time to answer my doubts?
Thanks for your time,
Mac
———- Forwarded message ———- From: mac ccie Date: Apr 26, 2008 11:09 PM Subject: Need some clarification on STP To: ccielab@groupstudy.com
Hi GS mates,
Can you please clarify few doubts regarding Spanning tree protocol which I had developed while doing some practice labs?
consider SW1 as primary root for vlan X and SW2 as secondary for vlan X.
1: What is the preferred way of changing spanning tree timers? Using spanning tree vlan X forward command or spanning-tree vlan X root primary diameter. 2: If SW1 is the root for vlan X then to expedite convergence on other switches in network (in case of port failure) should I change forward delay only on ROOT(and | or secondary root switch).
My conclusion of the above question is If technically we should change it only on root switch but if there is root failure next root switch also should have forward delay command configured. am i correct here?
3: if I need to configure covergence time on a switch to be 12 seconds what is the logic behind changing hello and max age? In other words should I consider changing hello and max age timer also. or simply say spanning vlan X forward-delay 12 serves the purpose.
Thanks,
Mac
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