EtherChannel allows you to bundle physical links into one logical link.
As example you can create a 200Mpbs pipe out of 2 100Mbps links. PAgP
is the protocol that negotiates this channel. PAgP is by default active
on all ports that are EtherChannel capable. PAgP uses the first 15 to 20
seconds after link initialization to try to negotiate an EtherChannel.
If you don't intend to use EtherChannel you can safely disable PAgP.
Greetings
Reinhold
On Tue, 12 Jun 2001, Larry Ogun-Banjo wrote:
> Many thanks for everyones contribution on this issue. I forgot to mention
that
> Spanning tree is not enabled. No tbeing too familiar with switches, I'm
not sure
> on the effect of PAgP.
>
>
> Reinhold Fischer on 06/12/2001 06:09:51 PM
>
> To: Larry Ogun-Banjo/EN/Kpn-Orange@kpn-orange
> cc: [EMAIL PROTECTED]
> Subject: Re: fao: Catalyst Gurus [7:8177]
>
> Larry,
>
> two things that can cause the delay:
>
> STP - Spanning Tree Protocol
>
> Solution: 'set spantree portfast enable'
> (Use it only on end-station ports)
>
> PAgP - Port Aggregation Protocol
>
> Solution: 'set port channel off'
> (PAgP is enabled by default on EtherChannel capable links)
>
> HTH
>
> Reinhold
>
> On Tue, 12 Jun 2001, Larry Ogun-Banjo wrote:
>
> > We have just installed some new catalyst switches 650x and 69xx. I have
> > noticed
> > that whenever I connected with a fluke to test connectivity on the
ports, it
> > takes approximately 20 secs to get its first contact with another
device. I'm
> > aware the switch port needs to learn the mac address etc but I would not
have
> > thought it would take so long. Are there any commands that would speedup
the
> > network discovery or is this normal behaviour on a new port?
> > Pardon this trivial question but it would help.
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