IGPs in use

Mon Oct 12 23:07:56 UTC 1998

At 02:55 PM 10/12/98 -0700, Randy Bush wrote:
>most large nsps use is-is, but usually only to carry the routes of the bgp
>speaking interfaces.

it probably depends on what you mean by "large".  If you mean "the 5 largest"
then yes, most use ISIS (but not all).  If you mean the 50 largest, then 
OSPF becomes much more prominent (that is, hardly anyone but the largest
ISPs use ISIS, at least from my discussions with dozens at my previous
and current employer).

							dave