nanog mailing list archives
Re: OSPF multi-level hierarchy: Necessary at all?
From: Vadim Antonov <avg () kotovnik com>
Date: Thu, 27 May 1999 18:47:18 -0700
Tony Li <tony1 () home net> wrote:
There's a better solution: decrease the number of nodes by replacing clusters with bigger boxes. This has an additional advantage of reducing number of hops (and, consequently, latency variance).
Certainly that helps, but as we move forward you still end up with lots of boxes in the network simply because you're in many different geographic locations.
Well, actually it is not that bad. The biggest number of locations is probably found in AT&T phone network - 250 or so. Sprint is in few dozen. The existing IGPs are quite happy with that kind of complexity, so if you belong to the "one-router-per-POP" school of thought the IGP complexity is a non-issue. --vadim
Current thread:
- Re: OSPF multi-level hierarchy: Necessary at all?, (continued)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex Zinin (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex Zinin (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Vadim Antonov (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 27)
- RE: OSPF multi-level hierarchy: Necessary at all? Jessica Yu (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Vadim Antonov (May 27)
- Re: OSPF multi-level hierarch: side question Steve Meuse (May 28)
- Re: OSPF multi-level hierarch: side question Alex P. Rudnev (May 28)
- Re: OSPF multi-level hierarch: side question Steve Meuse (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Vadim Antonov (May 27)
- Re: OSPF multi-level hierarchy: Necessary at all? Sean Donelan (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex Zinin (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Jessica Yu (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Jessica Yu (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 31)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex P. Rudnev (May 28)
- Re: OSPF multi-level hierarchy: Necessary at all? Alex Zinin (May 27)