[afnog] ospf and is-is

Randy Bush randy at psg.com
Wed Sep 24 11:40:17 UTC 2008


>> is-is is used by very few isps.  just the old stable ones.
> I not trying to influence your choice OSPF is great I been using it for
> many years

you seem to have misread my message.  when you get to be my age, old and
stable are good things.

this old dog's view is more like

  o when we built the earlier networks, is-is worked simply and well,
    dave katz was (and still is!) a rigorous and very clean implementor.

  o ospf was new and buggy.  so simply not a choice.  it was not usable
    until into the '90s.

  o as the internet grew, the ietf embellished ospf in the way that the
    ietf does things.  more complexity, flakier, ...

  o is-is is not editable by the ietf.  so it stayed simpler and more
    stable.

  o then there are features, e.g. hard to attack is-is at the ip layer.
    your previous message was good detail of today's state of play.

  o and then the old dogs went to new startups and spread our lazy way
    of doing things.

i hope all my competitors use ospf. :)

randy




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