[20433] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: IGPs in use

daemon@ATHENA.MIT.EDU (Tony Li)
Tue Oct 13 01:07:16 1998

To: randy@psg.com (Randy Bush)
cc: nanog@merit.edu
From: Tony Li <tli@juniper.net>
Date: 12 Oct 1998 21:51:47 -0700
In-Reply-To: randy@psg.com's message of 13 Oct 98 01:28:08 GMT


randy@psg.com (Randy Bush) writes:

> neither scale well.


From a theoretical perspective, they both scale exactly the same.  To wit:
a two level hierarchy, with SPF within each level.  Given ideal conditions,
one could reasonably build a 160,000 router network with either protocol
today without too much difficulty (400 nodes per area).

From a practical perspective, the implementation differences and topology
issues dominate their practical applicability.

Both can and will be extended, both for scalability and for features.  The
only question is how the extensions get defined.

Tony

Ob. config:

protocols {
    isis {
	interface all;
    }
}

home help back first fref pref prev next nref lref last post