From: Dimitris Vassilopoulos (Dimitris.Vassilopoulos@eurodyn.com)
Date: Tue Mar 04 2003 - 04:27:56 GMT-3
All,
Suppose that we are told to setup ISIS between two routers. One of them
is the F/R hub
and the other one is a spoke:
R1
/
R2 --- R3
\
R4
R2, R3, R4 run OSPF, so my question is only for R2-R1 which run ISIS.
No subinterfaces allowed on the R1, while R2 should have a subinterface
for R1.
I know that ISIS runs on point-to-point F/R subinterfaces, but how is
R1 going to learn
about other routes if it cannot use point-to-point subinterface for the
connection to R2?
What I did is:
I chose to have point-to-multipoint subinterface on R2 for the
connection to R1 and physical
interface on R1 (multipoint), so adjacencies and routing is possible.
Is this the proper solution?
Any input would be welcomed....
D.
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