[c-nsp] L2TP tunnel for BGP peering

[Robert E.Seastrom]

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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>> >>
>> >
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