From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Wed Mar 22 2006 - 18:34:07 GMT-3
you must be driving nuts, mate....
----- Original Message -----
From: <ccieim@comcast.net>
To: "Petr Lapukhov" <petrsoft@gmail.com>; "Marcio Ferreira"
<marciotf@gmail.com>
Cc: "Cisco certification" <ccielab@groupstudy.com>
Sent: Wednesday, March 22, 2006 4:55 PM
Subject: Re: STP timers tuning
>I think you guys are breaking NDA on this topic.
>
> -------------- Original message --------------
> From: "Petr Lapukhov" <petrsoft@gmail.com>
>
>> Hi, Marcio.
>>
>> No, i think that won't do it.
>>
>> You see, forward-time is time interval for listening and learning
>> statates - separately.
>>
>> That is, a port remains for seconds in listening state,
>> and another seconds in learning state.
>>
>> A total of 2x forward-time, which is 10 in your case. And we need
>> to get port up & running in just 5 seconds.
>>
>> To the extend of my knowledge, that could be accomplished only
>> with porfast/uplinkfast extensions, or RSTP protocol.
>>
>> HTP
>> Petr
>>
>> 2006/3/22, Marcio Ferreira :
>> >
>> > hi, I was really thinking that the command "spanning-tree vlan XX
>> > forward-time 5" would do it.
>> >
>> > Can someone confirm if it really does? And if not, could please explain
>> > why?
>> >
>> > Thanks
>> >
>> > On 3/22/06, Petr Lapukhov wrote:
>> > >
>> > > Just another thougth..Since classical STP is a little bit slow here.
>> > >
>> > > That 5 seconds interval reminds me of UplinkFast feature :)
>> > >
>> > > i takes about 1 to 5 seconds for alternative uplink to become fully
>> > > operational. Maybe that could answer your question?
>> > >
>> > > HTH
>> > > Petr
>> > >
>> > > 21.03.06, Evgeniy Voloshin NAPISAL(A):
>> > > >
>> > > > Yes,
>> > > >
>> > > > I understand that I must adjusted on root bridge some timers, but I
>> > need
>> > >
>> > > > to see some example, so I write how I can do it - reduce (learning
>> > and
>> > > > listening) interval to 5 sec?
>> > > > Of course I understand, that I can implement rapid STP on my
>> > > > switches,
>> > > > but I also want ot see some example about 5 seconds with simple
>> > > > STP.
>> > > >
>> > > > ---
>> > > > Yev.
>> > > >
>> > > > Evgeniy Voloshin wrote:
>> > > >
>> > > > > Hi Group,
>> > > > >
>> > > > > I have a little questions about STP - how I can reduce (learning
>> > > > > and
>> > > > > listening) interval to 5 sec on some port, where I must to do it?
>> > > > > In
>> > > > > global configuretion or on interface?
>> > > > >
>> > > > > I think that I must to change stp timers:
>> > > > > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>> > > > >
>> > > > > Hello to 1 sec, and Forward to 4 seconds - this is minimal
>> > > > > value...
>> > > > >
>> > > > > Or I must change diameter on root bridge for this Vlan:
>> > > > > spanning-tree vlan XX root primary diameter 2-7
>> > > > > ?
>> > > > >
>> > > > > TIA!
>> > > > > ---
>> > > > > Yev.
>> > > > >
>> > > > >
>> > > _______________________________________________________________________
>> > > > > Subscription information may be found at:
>> > > > > http://www.groupstudy.com/list/CCIELab.html
>> > > > >
>> > > >
>> > > > --
>> > > > s UWAVENIEM,
>> > > > eWGENIJ.
>> > > >
>> > > >
>> > _______________________________________________________________________
>> > > > Subscription information may be found at:
>> > > > http://www.groupstudy.com/list/CCIELab.html
>> > >
>> > > _______________________________________________________________________
>> > > Subscription information may be found at:
>> > > http://www.groupstudy.com/list/CCIELab.html
>> >
>> > _______________________________________________________________________
>> > Subscription information may be found at:
>> > http://www.groupstudy.com/list/CCIELab.html
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Apr 01 2006 - 10:07:39 GMT-3