From: sohu (xieji@sohu.com)
Date: Thu Jun 26 2003 - 22:32:57 GMT-3
hello
I can not understand the difference between these two options.Once a time, My custmoer ever asked me this question.I can not give him a good answer.Can anyone give more explaination?
Best Regards
xieji
----- Original Message -----
From: "Craig Dorry" <chdorry@yahoo.com>
To: <jfaure@sztele.com>; <ccie2002@tampabay.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, June 26, 2003 9:02 PM
Subject: Re: PagP & non-silent keyword
> I have seen the difference in the forming of the
> portchannels when bundling gig interfaces on the
> cataly 6500 running native IOS. The problem is with
> the keyword silent, the LTL (Local Target Logic)
> doesn't get programmed correctly if there is any delay
> between the first and last gig being added to the
> bundle (or if one gig of a channel bounces). This has
> affected many multicast applications on our network
> causing the gig etherchannel to block the traffic
> instead of forwarding it correctly. Switching to
> desirable non-silent (from what I remember this caused
> the two devices to send packet over the link before
> bundling them) solved that problem with the LTL logic.
>
>
> --- jfaure@sztele.com wrote:
> > But, as you said, if you use mode desirable and
> > don't specify any keyword,
> > silent is assumed. And, if you use the interfaces
> > with this EC config to
> > form a Echannel with other pagp capable device, it
> > works fine too. I have
> > an FasthEtherchannel between two 3550 with this
> > config and it seems to work
> > properly, it doesn't matter if i put "silent" or
> > "non-silent"
> >
> > I don't see the difference.
> >
> > Regards
> >
> >
> >
> > Juan Faure Ferrer
> > email: jfaure@sztele.com
> >
> > Lmnea de Negocio de Telematica y CC
> > Ingeniero de Integracisn de Redes y Sistemas
> >
> ----------------------------------------------------------------------------
> >
> > SOLUZIONA TELECOMUNICACIONES
> > Servicios Profesionales de UNION FENOSA
> > Jerez, 3
> > 28016 MADRID
> > tel 91 579 30 00 fax 91 350 72 83
> >
> ---------------------------------------------------------------------------
> >
> >
> >
> >
> >
> > ccie2002@tampa
> >
> > bay.rr.com Para:
> > jfaure@sztele.com,
> >
> > ccielab@groupstudy.com
> > 24/06/03 16:16 cc:
> >
> > Asunto: Re:
> > PagP & non-silent keyword
> >
> >
> >
> >
> >
> >
> > >Basically you would use non-silent mode when
> > connecting via etherchannel
> > to
> > another switch, or device that understands and uses
> > PAgP. PaGP negotiation
> > takes place.
> >
> > Silent mode would be used for connecting via
> > etherchannel to non PAgP
> > devices
> > such as servers. PaGP is not negotiated
> >
> > By default if you don't specify non-silent with auto
> > or desirable, then
> > silent
> > mode is used.
> >
> >
> > Hi:
> > >
> > > I'm reading the 3550 config guide and the notes
> > about Etherchannel
> > > interfaces. I'm don't see the difference between
> > the keywords
> > "non-silent"
> > > and "silent" for the auto and desirable modes.
> > >
> > > Anyone can explain the purpose of each one?
> > >
> > > Regards
> > >
> > >
> > > Juan Faure Ferrer
> > > email: jfaure@sztele.com
> > >
> > > Lmnea de Negocio de Telematica y CC
> > > Ingeniero de Integracisn de Redes y Sistemas
> > >
> >
> ----------------------------------------------------------------------------
> >
> > >
> > > SOLUZIONA TELECOMUNICACIONES
> > > Servicios Profesionales de UNION FENOSA
> > > Jerez, 3
> > > 28016 MADRID
> > > tel 91 579 30 00 fax 91 350 72 83
> > >
> >
> ---------------------------------------------------------------------------
> > >
> > >
> > >
> >
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