From: Annu (annu_roopa@xxxxxxxxx)
Date: Sat Jan 05 2002 - 01:47:16 GMT-3
Gurus,
While we are discussing so much of IS-IS,I have some
doubts. My scenario is as follows. Very close to
Doyles case on Page 652 except with different IP
addresses.Ver 12 on routers.
R6 (L1)
|
(L1/2)R11 R12 (L1/2)
| ethernet |
|--------------------|
|
L2 router
Q1. When I see neighbors on R11 and R12 and R6 they
show me as below.I have known IS type L1/L2 or both.
What is this type "IS" which I see below.What is wrong
or what am I missing ?
R11/R12 are L1/L2. R6 has been configured as L1
explicitly.
r6#show clns is-neighbors
System Id Interface State Type Priority Circuit Id
Format
r12 Se0 Up IS 0 00 Phase V
r12#show clns is-neighbors
System Id Interface State Type Priority
Circuit Id Format
r6 Se0 Up IS 0 00
Phase V
r11 Et0 Up L1L2 64/64
r12.01 Phase V
r11#show clns is-neighbors
System Id Interface State Type Priority
Circuit Id Format
r12 Et0 Up L1L2 64/64 r12.01 Phase v
Q2. R6 automatically sees R12 as default gateway even
though no "default info orgin" has been configured
On R12. Is this expected and ok ? I have some L2
routers connected to R12/R11 on Ethernet which has
been avoided for simplicity.
Q3.Most of the examples show area addres in IS-IS as
49.0001 or 47.0001 .What if this is 01 or 02 etc.Bcoz
i see that area addres is 1 byte in the normal
address.Which format are the books using ?
=====
Thanks in advance for ur time and replies.
Annu.
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