On Thu, Jul 06, 2006 at 09:02:47PM -0500, Jacob Yocom-Piatt wrote:
| i've started doing some background reading on how BGP works and am adrift in
a
| sea of acronyms. i'm confident that i'll learn how to swim, but there are a
few
| questions that i'd like answers to before i make the time investment to
learn
| more. boolean answers are acceptable, more information wouldn't hurt
though.
|
| (1) i have 2 blocks of 8 static IPs at my disposal, one at home and one at
work,
| and both connections are 3Mb/512Kb ADSL via PPPoE. the upstream traffic at
work
| is beginning to saturate the connection and i would like to share some of
the
| load with the home connection. would BGP allow me to multihome a site
across
| both connections to split the load?
|
| would i need an AS number if this would work?
Generally, BGP is used to serve a set of IP addresses over multiple
links two one location. You have two different sets of IP addresses
and two links to two different locations, this smells like trouble.
| (2) are there any particular online docs that are recommended reading for
BGP?
The RFC (I think it's 1771) is very good, check it out.
| what about books?
Try O'Reilly's book by Iljitsch van Beijnum, BGP (ISBN: 0596002548).
| (3) the home gateway machine is a PII-350 w/ 64MB ram. is this too slow for
| doing what i have asked about in (1)?
Seems to be a bit low on RAM, but for just two /29's it would suffice.
At a pervious company we used to setup BGP over private AS'es to
customers who wanted a failover internet connection. If you don't get
a full feed, but just part of the IP space your provider has allocated
to you, this works very well indeed. You give them your /29's, they
give you a /0. Your machine would be very capable of handling such BGP
sessions and the traffic 2 DSL lines can generate. The good thing is
that you don't need your own (public) ASN and that your /29's will not
be filtered by just about every ISP on the planet. The downside is
that you have to get your IP space from one ISP and this ISP has to
cooperate in your little BGP scheme. This is usually not very easy
with your average consumer ISP.
In your situation, you may be better off using multiple A records in
DNS, one to your office location and the other to your home location.
Note that this does not gracefully failover when one of the two DSL
connections fail for whatever reason. Maybe you can do very evil stuff
with tunneling and bridging and carp and bgp, but that's too
disgusting for me to think about ;)
Cheers,
Paul 'WEiRD' de Weerd
--
>++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+
+++++++++++>-]<.>++[<------------>-]<+.--------------.[-]
http://www.weirdnet.nl/
[demime 1.01d removed an attachment of type application/pgp-signature]
