Re: Spanning tree PAGP question

1) Why is it high time to convert to a L3 routed network
instead between my 
access & core switches?

2) Someone else advised me about changing my root bridge
priority from 100 
to 4096. 100 seems to be working fine. Do i really need the
change?

Thank you


""Joseph Brunner""  wrote in message 
news:200706280254.l5S2sec9018049groupstudy.com...
>> Will STP converge causing a brief disconnect or it
woudln't
>> need to since
>> the other port will still be up?
>
> No this would defeat the purpose of etherchannel...
> it keeps on tickin'... the interface does change
> show spanning-tree interface usually only shows the
lowest one in the
> channel (i.e f0/45&f0/46 channel, the 45 gets
shown), but that will change
> over too to f0/46
>
>
>>It might be a bit risky to make an extra change on a
production network
>>though...
>
> if it aint broke, don't risk your job ;)
>
> I would say advise everyone we LOSE the benefits of
RSTP and should 
> schedule
> a window ASAP to do it. In experience its a second or
to, or nothing.
>
> Spanning-tree is best left alone, once the root bridges
have been properly
> configured with rapid spanning-tree (or mst) and set to
lowest priority 
> per
> the design. I would tweak the port priorities or costs
unless you are
> specifically looking for some functionality you dont
have today, like odd
> vlan's prefer channel xx to get to the core and even
vlans prefer channel 
> xx.
>
> When your network is big enough to worry about
spanning-tree, now-adays 
> its
> high time to convert to a layer 3 routed network
instead.
>
> -Joe




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