From: ccie2be (ccie2be@nyc.rr.com)
Date: Fri Mar 04 2005 - 20:39:30 GMT-3
Ananth,
I'm not 100% sure about this but I'm fairly certain that the answer depends
on how your isdn service provider configured your circuits.
From Cisco's point of view, I believe the assumption is that both B channels
are configured as a hunt group in which case your b) solution would work.
If you're asking this for your cert prep, you don't really need to spend too
much time working through all the gzillion permutations - it's gets very
complicated, very fast.
If you need to know this to get your circuits working for your job, then you
have to find out from your service provider how the circuits are configured
and what you particular requirements are.
Then, you can look through the isdn support pages and may find the answer
suitable for your situations.
HTH, Tim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
anantha S
Sent: Friday, March 04, 2005 4:02 PM
To: Cisco certification
Subject: basic BRI with no mlppp question
I had a scenario where R1 & R2 are connected via BRI, with each Rtr
having two isdn numbers and one ip. Assuming no MLPPP, Which of the
below config should i choose on R1 ?
R1 (2.2.2.1)-----bri--------(2.2.2.2) R2
a)
R1:
dialer map ip 2.2.2.2 spid1
dialer map ip 2.2.2.2 spid2
b)
since the ip destination is same..can i dial just one spid ?
R1:
dialer map ip 2.2.2.2 spid1 or spid2
c) in the above scenario, should i choose 1 spid/B-channel for each
direction ? If both Rtr can Dial each other.
R1: dialer map ip 2.2.2.2 spid1ofR2
R2: dialer map ip 2.2.2.1 spid2ofR1
Thanks in Advance
Ananth
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