Evan,
As long as you do not have a lot of traffic, try
debugging the dialer packets. This will show what is
'interesting' and triggering the dialer. You probably
have some sort of broadcast triggering it, but you'll
find out. Do not execute this command on anything that
has more than a few packets per second crossing the
router (ie - do it during non peak times), especially
on a production box.
debug dialer packets (if I remember correctly)
You can also do a 'show dialer' and find out the
reason it dialed. Hope this helps.
Frank Zahrt, CCNP CCDP
NEC Senior Network Engineer
--- Evan You <[EMAIL PROTECTED]> wrote:
> Hey all,
>
> I have two routers in OSPF Area 0 that have ISDN
> backup connections from one
> to the other.
>
> The ISDN config is working great. When the primary
> FR link goes down, the
> ISDN kicks in instantly and it dies when the primary
> link goes back up. My
> dilemma is that even though the primary FR link is
> up, the ISDN link goes up
> every few minutes.
>
> I've configured EIGRP DDR scenarios and had to use
> Access-list to control
> EIGRP traffic over the BRI interface. Is it the same
> with OSPF? What can be
> causing the ISDN BRI to go up every few minutes?
>
> The routers are currently running:
> OSPF
> IP
> Frame Relay
> And nothing else!
>
> interface BRI0
> ip address 212.1.22.34 255.255.255.240
> encapsulation ppp
> ip ospf cost 200
> ip ospf demand-circuit
> bandwidth 64000
> isdn spid1 xxxxxxxxx xxxxx
> dialer idle-timeout 180
> dialer map ip 212.1.22.33 name R2 broadcast xxxxxxx
> dialer hold-queue 75
> dialer-group 1
> no cdp enable
> ppp authentication chap
>
>
> Thanks,
>
> Evan You - CCNA
>
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