In my opinion if all that you are running are BGP
whether it be IBGP or EBGP then there is no need for
synchronisation so add no synchronisation in
otherwise if you are running another igp example ospf
etc. then in order to speed up process of convergence
between igp and bgp I would add in no synchronisation
regards,
suaveguru
--- Ahmed Aden <[EMAIL PROTECTED]> wrote:
>
> Thanks for the clarification. So with 'no
> synchronization' set, every
> peer who RECEIVES that route doesn't have to verify
> if there is an igp
> route to
> it, but the originator still checks before
> advertising it?
>
>
> On Wed, 14 Feb 2001, Brian Dennis wrote:
>
> > Sychonization only comes into play when a BGP
> route is learned from an iBGP
> > peer. If you are the origniator of the route you
> must have an IGP route.
> > Disabling synchonization won't affect the
> originator of the route.
> >
> > Brian Dennis
> > CCIE #2210 (R&S)(ISP/Dial)
> > CCSI #98640
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Ahmed Aden
> > Sent: Wednesday, February 14, 2001 8:36 AM
> > To: Rodgers Moore
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: bgp questions
> >
> >
> >
> > Correct me if I'm wrong, but the only situation
> that bgp cares about IGP's
> > synchronization
> > is when bgp is explicitly configured to announce
> networks (i.e network
> > x.x.x.x mask x.x.x.x) and it would have to check
> the igp to see if there
> > is a valid route to that network. This can be
> overridden by 'no
> > synchronization'. However, the default behavior
> is that bgp announces
> > active (I'm not sure what activate means) routes
> (routes which are
> > reachable via an IGP's routing table) to all
> configured bgp peers
> > irrespective of whether
> > they are an ibgp or ebgp peer. For this reason, I
> would select A. It's
> > still very poorly worded, assuming 'activate' is
> not a typo.
> >
> > hope this helps
> >
> >
> > On Wed, 14 Feb 2001, Rodgers Moore wrote:
> >
> > > Yuck, really bad question. No frame of
> reference, no nothin. What is a
> > > activate route anyway? Active route?
> > >
> > > I think the key to answering this question is
> the question: when would BGP
> > > not report an active route? When BGP and the
> IGP are not in sync, then an
> > > active route would not be reported.
> > >
> > > I say "D" is the most likely suspect, although I
> would change BGP to EBGP.
> > >
> > > Rodgers Moore
> > >
> > > ""Howard C. Berkowitz"" <[EMAIL PROTECTED]> wrote in
> message
> > > news:p05001900b6aff192dfe7@[63.216.127.98]...
> > > > >I would choose D , correct me if I am wrong
> > > > >--- David Tran <[EMAIL PROTECTED]>
> wrote:
> > > > >> I have this question on my cisco prep exam
> > > > >> fill-in-the-blank. Please =
> > > > >> help.
> > > > >>
> > > > >> A BGP router reports all activate routes
> based from
> > > > >> BGP ______. This is =
> > > > >> the default policy action for BGP routers.
> > > > >>
> > > > >> A. to all BGP peers
> > > > >> B. to all IBGP peers
> > > > >> C. to all EBGP peers
> > > > >> D. and the IGP's configured on the router
> to all BGP
> > > > >> peers
> > > > >>
> > > > >> I select choice a. Is it correct?
> > > > >>
> > > > >> David Tran
> > > > > > [EMAIL PROTECTED]
> > > > > >
> > > >
> > > >
> > > > It's a poorly written question. If I was
> forced to pick, but I don't
> > > > understand the first sentence.
> > > >
> > > > _________________________________
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