IS-IS reference

Dave Cooper dcooper at
Mon Sep 13 23:31:13 UTC 1999

Randy Bush wrote:
> > 1. Use IBGP and redistribute connected/static and when you can, aggregate
> >    those statics/connecteds at each router.
> > 2. Use IGP (IS-IS level-2 or OSPF area0) for the backbone links and
> >    IBGP, Any-RP loopbacks. Don't add instability to your 
> >    IGP when you have IBGP that can take care of it much more efficiently. 
> >    As long as IGP can reach/see each router's loopback, IBGP will
> >    work great for connecteds/statics (just make sure you don't announce
> >    these specifics to your peers).
> > 3. Don't use static routing for backbone links.... i am not sure how that
> >    even came up. Remember this is a NSP of some sorts.
> vadim's english was not so bad it needed reinterpreting

not reinterpreting... just enhancing.:)

> > 4. Do multicasting, just make sure you get clueful on it.  Its not rocket
> >    science... and with PIM sparse/dense, its much easier than the DVMRP
> >    days.  (and make sure you get on a good IOS release and stay off the
> >    buggy releases)
> that's anything since the lost stanford backup tapes?  and msdp worked
> almost as well on that release as it does now.

msdp/mbgp has its own definition of "good IOS release"... but it works.

> randy

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