ISDN Multilink PPP

From: Ben Rife (brife@xxxxxxxxxx)
Date: Sun Jul 11 1999 - 16:20:06 GMT-3


   
   Hi Guys, I'm 2 days away.....
   
       I have an issue I can't get past with Multilink PPP.
   
   I am using a dialer profile on both routers. Their configs are
   identical as follows:
   
   interface BRI0
    no ip address
    isdn spid1 0835866101 8358661
    isdn spid2 0835866301 8358663
    dialer pool-member 1
   !
   interface Dialer0
    ip address 192.168.2.1 255.255.255.0
    encapsulation ppp
    dialer remote-name r2504
    dialer string 8358662
    dialer load-threshold 1 either
    dialer pool 1
    dialer-group 1
    ppp multilink
   
   Interesting traffic will bring the first channel up, then one side or
   the other will bring the other channel up. The problem is that my
   idle-timeouts never match. They don't match with each other or with
   the remote side. So what happens is that one channel will reach
   idle-timeout (120 sec) and drop the connection. Then immediately the
   other side will bring it back up again. It's got me perplexed. I can
   be sending pings across the line and the idle time-out on one of the
   channels is updated but not both. And then the other channel will go
   down and up...etc.
   
   Here is a sh dialer snippet to show my point.
   
   BRI0:1 - dialer type = ISDN
   Idle timer (120 secs), Fast idle timer (20 secs)
   Wait for carrier (30 secs), Re-enable (15 secs)
   Dialer state is data link layer up
   Interface bound to profile Dialer0
   Time until disconnect 52 secs
   Connected to 8358662
   
   BRI0:2 - dialer type = ISDN
   Idle timer (120 secs), Fast idle timer (20 secs)
   Wait for carrier (30 secs), Re-enable (15 secs)
   Dialer state is data link layer up
   Dial reason: Dialing on overload
   Interface bound to profile Dialer0
   Time until disconnect 118 secs
   Current call connected 00:01:05
   Connected to 8358662
   
   I've only got 2 days left....
   
   Benjy Rife
   MCSE, CNE, CCIE Candidate
   brife@bignet.net
   www.bignet.net/~brife



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