From: Scott Morris (smorris@ipexpert.com)
Date: Wed Sep 19 2007 - 11:21:47 ART
Max age is the time that the port will go without seeing a BPDU before
bouncing the line (kinda like dead timer in routing protocols). The
blocking time also happens to equal 20 seconds (same as default of max-age)
but the two are not the same thing.
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-ER
VP - Technical Training - IPexpert, Inc.
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Gregory Gombas
Sent: Wednesday, September 19, 2007 9:43 AM
To: alexey
Cc: ccielab@groupstudy.com
Subject: Re: STP and Routing questions
Alexey - are you saying that when a port first starts up, it skips the max
age time and goes straight to forward delay?
I have seen that as well because it normally takes about 30 seconds for a
port to start forwarding after enabling a port.
Can you share a link to this?
Thanks
On 9/19/07, alexey <alexnetc@gmail.com> wrote:
> > 1. What about max age time? The minimum max age is 6 seconds.
> > Minimum forward delay is 4 seconds.
> >
> > So 6+(4*2) = 14 seconds is the minimum, isn't it?
> >
> > Someone please verify these numbers...
>
>
> This is not true. Because the question specifically about port startup
> (BLK
> -> FWD), rather than on the time of convergence network (Max Age +
> -> Forward
> Delay + Forward Delay).
>
>
> > On 9/17/07, hadek.el-ayachi@nsn.com <hadek.el-ayachi@nsn.com> wrote:
> > > Hi Experts,
> > > I have the following questions:
> > > 1- In a non root switch, make the startup time of ports in vlan 15
> > > equal to 12 seconds?
>
>
> All changes timers should be done only at the root switch. Changes
> timers at non-root switches will not lead to any results. Am I right?
>
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