From: Mounir Mohamed (mounir.mohamed@gmail.com)
Date: Fri Aug 24 2007 - 16:31:03 ART
Feel Free to name it what you want :) Yes the important thig to get
everything working :)
On 8/24/07, Gabriel Nunes <gabriel.nunes@gmail.com> wrote:
>
> Well this is what I learned... At this case you mentioned, I would call
> the routers as Ingress router, Core router and Egress router.
>
> But what is important is that the network works... :-)
>
> Gabriel Nunes
> CCIE#17737
>
>
>
> On 8/23/07, Mounir Mohamed <mounir.mohamed@gmail.com> wrote:
> >
> > HI Gabriel,
> >
> > It's not VPN-MPLS terminology ONLY,PE and P is a terminology for any
> > MPLS implementations, So why did u reserve it for only one application
> > (MPLS-VPN) actually if am providing MPLS-ATOM i will call my gears PE and P
> > as soon as they imposing and deposing labels. so the Guy (Mohamed) was
> > talking about MPLS benefits so it's clear that he meaning MPLS applications.
> >
> >
> > Best Regards,
> > Mounir Mohamed
> >
> > On 8/23/07, Gabriel Nunes < gabriel.nunes@gmail.com> wrote:
> >
> > > Hi Mohamed,
> > >
> > > P and PE belongs to VPN MPLS terminology. If you have an ISP backbone
> > > where
> > > you don't have MP-BGP running, you don't have P and PE routers. In
> > > this case
> > > you would have an MPLS core backbone only with probaly a Traffic
> > > Engineering...
> > >
> > > Gabriel Nunes
> > > CCIE#17737
> > >
> > >
> > > On 8/23/07, Mohamed M Moustafa < mmma@gawab.com> wrote:
> > > >
> > > > Hi,
> > > >
> > > > As Brian has stated, only the core routers (P routers) are not
> > > running BGP
> > > > as they only do label switching but the edge routers (PE routers)
> > > still
> > > > need to run BGP, this is always the case of an MPLS backbone
> > > providers,
> > > > but
> > > > all the routers needs to run IGP (most commonly ISIS or OSPF),
> > > before even
> > > > MPLS can operate, and the first benefit of MPLS is that the core
> > > routers
> > > > needs not a full internet routing table as they just do label
> > > switching,
> > > > and then comes all the advanced features of MPLS.
> > > >
> > > > HTH,
> > > > Mohammed Mahmoud.
> > > >
> > > >
> > > > C SAMARTH < samarth_04@hotmail.com> wrote on 23 Aug 2007, 08:08 PM:
> > > > Subject: RE: Question for you ISP guys
> > > > >Has any of the ISP's completely stopped running any BGP in their
> > > core and
> > > > >running only MPLS + IGP there?
> > > > >
> > > > >Best Wishes,
> > > > >SAMARTH
> > > > >CCIE #18535
> > > > >
> > > > >> From: bmcgahan@internetworkexpert.com> To: ggombas@gmail.com ;
> > > > >ccielab@groupstudy.com> Subject: RE: Question for you ISP guys>
> > > Date:
> > > > Thu,
> > > > >23
> > > > >Aug 2007 11:34:39 -0500> > A lot of large providers run IS-IS as
> > > their
> > > > IGP,
> > > > >BGP at the edge,> and then MPLS in the core. Running MPLS not only
> > > > enables
> > > > >advanced services> like traffic engineering and L2/L3 VPNs, it also
> > > > removes
> > > > >the requirement of> transit devices having to carry the full public
> > > BGP
> > > > >table.
> > > > >It works this> way because the MPLS enabled routers don't need to
> > > know
> > > > what
> > > > >the final> destination of a packet is, only what the exit point
> > > is.> >
> > > > >HTH,> >
> > > > >Brian McGahan, CCIE #8593 (R&S/SP/Security)>
> > > > > bmcgahan@internetworkexpert.com >
> > > > >> Internetwork Expert, Inc.> http://www.InternetworkExpert.com
> > > <http://www.internetworkexpert.com/>> Toll
> > > > Free:
> > > > >877-224-8987 x 705> Outside US: 775-826-4344 x 705> 24/7 Support:
> > > > > http://forum.internetworkexpert.com > Live Chat:
> > > > >http://www.internetworkexpert.com/chat/ > > > > -----Original
> > > > Message----->
> > > > >>
> > > > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > > Behalf Of>
> > > > >
> > > > >Gregory Gombas> > Sent: Thursday, August 23, 2007 10:37 AM> > To:
> > > Cisco
> > > > >certification> > Subject: Question for you ISP guys> > > > For
> > > those of
> > > > you
> > > > >with ISP experience, can you tell me what routing> > protocols do
> > > service
> > > > >providers typicall run within their AS?> > > > Do you have every
> > > single
> > > > >router
> > > > >running BGP? I can't imagine> > redistributing 225k+> > routes into
> > > an
> > > > IGP,
> > > > >so
> > > > >how do you pass these routes withing your AS?> > > > If you are
> > > using
> > > > iBGP
> > > > >what are you using to transmit next hop> > information (as iBGP
> > > does not
> > > > >normally update the next hop of the> > external AS)?> > > > Can
> > > someone
> > > > >point
> > > > >me to some documentation showing typical ISP routing> > design?> >
> > > > >
> > > > >Thanks,> > Greg> > > >
> > > >
> > > >_______________________________________________________________________>
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> >
> > --
> > Best Reagrds,
> > Mounir Mohamed
>
>
>
-- Best Reagrds, Mounir Mohamed
This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:13 ART