On Tue, 12 Jun 2001, Martin, Christian wrote:
> This bit me a while back. I was trying to build a nice, "scalable",
> multi-area network. The reasoning was that it was world-wide, with some
> slot routers and WAN links. Enterprise networks are always painful in the
> end when trying to engineer isp-like ideas into them...
Our network's not _that_ big, though it does span several states. It's
basically currently a star-like layout with one central point connecting
to the internet and lots of spokes going out to POPs...some of which are
actually chains or trees of POPs. i.e. grossly simplified with lots of
spokes omited:
POPa POPf
| /
POPb---center---POPc---POPd---POPe
/ | \ \
internet POPg
Things are interconnected with a mix of T1's and T3's. Having all our
transit in one place has kept things relatively simple, but we will
eventually be adding transit at multiple points, at which point it's kind
of hard to define a center. We already have private peering at POPs other
than the center. I like OSPF since it's an open standard and supported by
lots of vendors. From what I've heard, it sounds like most of the larger
networks run ISIS rather than OSPF. Is it time to start looking into
switching?
-- ---------------------------------------------------------------------- Jon Lewis *jlewis@lewis.org*| I route System Administrator | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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