OSPF multi-level hierarchy: Necessary at all?

Alex P. Rudnev alex at Relcom.EU.net
Thu May 27 18:43:09 UTC 1999

> I guess the answer is pretty much not. The amount of interior
> routing information in a properly designed backbone is quite
> small even if there is no two-layer abstraction.  (Now, the
> _exterior_ information is aplenty, but OSPF is useless for it
> anyway).
> If someone proposed simplifying and cleaning up OSPF i'd be
> quite for it.  Building a protocol allowing to get rid of
> iBGP hack would also help :)
Yep, it's the main headache for ISP, just as a lack of control ober EBGP 
(I can't control incoming traffic except tricky AS-PREPENT and _working 
for one ISP only_ COMMUNITIES).

Through if someone build distributed (withouth one AS and one back-bone) 
model of OSPF - may be, it's interesting. 

> --vadim

Aleksei Roudnev, Network Operations Center, Relcom, Moscow
(+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 230-41-41, N 13729 (pager)
(+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax)

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