From: Ken.Farrington@barclayscapital.com
Date: Tue Sep 23 2003 - 04:17:37 GMT-3
Please expand e-mail window to see diagram correctly :)
AREA0 Area3
+----+ +----+ +----+ 3
| R1 |--------------------| R2 |---------------------| R3 | nets Redist
connected subnets
+----+ 10.0.0.0/24 +----+ 11.0.0.0/24 +----+
ABR
ASBR
11.0.1.0/24
11.0.2.0/24
11.0.3.0/24
Guys,
I have the above setup, and if I keep area 3 as a normal area, R3 is an
ASBR (redist con) and R2 is an ABR.
If I make area 3 a stub area I have to use an NSSA correct, as a stub area
does not expect Type 5s.
Please could you confirm this?
Also, If I have area 3 as an NSSA, why does R2 become an ASBR as well as an
ABR? Is it to do
with the fact R2 has to convert a type7 LSA to a type5 LSA and this function
automatically makes
R2 into an ASBR?
If so far is correct? if I inserted a router between R2 and R3 (called
R2a), would this just be a
normal internal area router? as it would pass L7s (I assume) to R2 or would
it become something else?
Please could someone confirm this concept.
Many thx indeed,
Ken
________________________________________________________________
Ken Farrington
Global Networks, Barclays Capital, 5 The North Colonnade, Canary
Wharf, London, E14 4BB
* Tel : 020 7773 3550
* Mob : 07768-866655
* ken.farrington@barcap.com
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