[c-nsp] L2TP tunnel for BGP peering

[Kanagaraj Krishna]

We were looking at Arbinet(US) to setup our L2TP tunnel BGP session. They have 
a few major players connected to them. For your information we are planning to 
run this tunnel through on our current upstream provider. Any thoughts on 
these? Thanks

Kana

> 
> You still have to get the bits there somehow, which is a major
> component of the price differential between Malaysia and the US.  How
> were you planning to do that?
> 
>                                         ---Rob
> 
> 
> "Kanagaraj Krishna" <kanagaraj at aims.com.my> writes:
> 
> > Hi,
> >
> > The reason why this was brought up by the management, is related to the IP
> > pricing difference between US and Asia. We are based in Malaysia and the
> > pricing charged by international upstream providers (local POP) is very
> > expensive. L2TP is an alternative to connect with them directly in
> US/Europe
> > at a cheaper price minus the cost of having a direct IPLC.
> >
> > Fiancial budget = Management .......  :-)
> >
> > Regards,
> > Kanagaraj Krishna
> >
> > ----- Original Message -----
> > From: "Joe Maimon" <jmaimon at ttec.com>
> > To: "Kanagaraj Krishna" <kanagaraj at aims.com.my>
> > Cc: "Robert E.Seastrom" <rs at seastrom.com>; <cisco-nsp at puck.nether.net>
> > Sent: Monday, June 19, 2006 9:52 AM
> > Subject: Re: [c-nsp] L2TP tunnel for BGP peering
> >
> >
> >> Why would you do L2TP and not GRE?
> >>
> >> If you have enough IP routing to put up a working l2tp tunnel, then you
> >> have enough to do multihop ebgp.
> >>
> >> If your ip routing and your desired BGP peering is running over a
> >> different provider, then a tunnel could be neccessary to avoid routing
> >> loops.
> >>
> >> The only gain you could possibly have with this setup is if Provider A
> >> (the route to provider B) is cheap/fast/reliable to get to B but nowhere
> >> else, and provider B is cheap/fast/reliable to get everywhere else.
> >>
> >> Otherwise, if you are connected to your new provider, tunneling shouldnt
> >> even enter the picture.
> >>
> >> Now as an aside, if you are a network engineer that is getting stumped
> >> by technical crap spewed from management, something is very wrong.
> >>
> >> Either you dont know you business or your management cant mind theirs.
> >>
> >> Kanagaraj Krishna wrote:
> >>
> >> > Its one option suggested by my management for our next upstream
> provider
> > (@
> >> > getting bandwidth).  I need to understand the pros and cons of the
> > running
> >> > BGP on a L2TP tunnel like overhead, link quality etc, before moving any
> >> > further. I found stuff on L2TP but not related to BGP. Hope to get more
> >> > inputs. Thanks.
> >> >
> >> > Regards,
> >> > Kana
> >> >
> >> > ----- Original Message -----
> >> > From: "Robert E.Seastrom" <rs at seastrom.com>
> >> > To: "Kanagaraj Krishna" <kanagaraj at aims.com.my>
> >> > Cc: <cisco-nsp at puck.nether.net>
> >> > Sent: Wednesday, June 14, 2006 7:04 AM
> >> > Subject: Re: [c-nsp] L2TP tunnel for BGP peering
> >> >
> >> >
> >> >
> >> >>Kanagaraj Krishna <kanagaraj at aims.com.my> writes:
> >> >>
> >> >>
> >> >>>Hi,
> >> >>>    Due to cost issues tied to direct IPLC, we are thinking of running
> >> >>
> >> >>you mean international private leased circuits?
> >> >>
> >> >>
> >> >>>BGP sessions with upstream providers through L2TP tunnels. It would be
> >> >>>very helpful,  if anyone in the group share advises on the pros and
> >> >>>cons of this setup. A few other doubts are:
> >> >>
> >> >>this sounds dodgy to me and like a bad plan, but read on...
> >> >>
> >> >>
> >> >>>- We have concerns on the stability of the virtual link like quality
> >> >>>drop etc. Are there any mechanism to improve this as drop of  tunnel
> >> >>>would cause BGP flapping/dampening ?
> >> >>>- What would be the overhead on the bandwidth throughtput?
> >> >>
> >> >>what problem exactly are you trying to solve here?  you have to get
> >> >>bandwidth from somewhere...  is the problem that you can't get frame
> >> >>relay or other appropriate technology via vsat or terrestrial circuit
> >> >>at a reasonable price?
> >> >>
> >> >>                                        ---rob
> >> >>
> >> >>
> >> >>>
> >> >>>We would like to get more input before looking into further. Thanks
> >> >>>
> >> >>>
> >> >>>Regards,
> >> >>>Kanagaraj Krishna
> >> >>>
> >> >>>
> >> >>>_______________________________________________
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> >> >>>https://puck.nether.net/mailman/listinfo/cisco-nsp
> >> >>>archive at http://puck.nether.net/pipermail/cisco-nsp/
> >> >>
> >> >
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> >> >
> >> >
> >>
> >
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> 


-- 
Kanagaraj Krishna
Senior Network Engineer
Network Engineering
Applied Information Management Services Sdn. Bhd.
(AIMS Sdn. Bhd.)
Ground Floor, Menara Aik Hua,
Changkat Raja Chulan,
50200 Kuala Lumpur,Malaysia.

Tel     : +603-20314988 Ext : 395
Mobile  :  012-3266151 
Fax     : +603-20318948
Email   : kanagaraj at aims.com.my