Re: ISDN Call

From: Bob Sinclair (bsin@cox.net)
Date: Thu May 26 2005 - 20:12:41 GMT-3


Bajo,

If this is a lab router, then you can tell what is keeping it by observing the
output from DEBUG DIALER (what triggers a call) and DEBUG IP PACKET (what
traffic is crossing). If it is staying up, as opposed to bouncing, then it is
probably some kind of interesting traffic, perhaps another routing protocol.

HTH,

Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net

  ----- Original Message -----
  From: Bajo
  To: Group Study
  Sent: Thursday, May 26, 2005 6:51 PM
  Subject: ISDN Call

  Hi GS,

  Am having an issue with an ISDN calls staying up forever even though I
  have the idle-timeout and the ospf-demand-circuit (to stop OSPF hellos
  from ageing).

  Thanks for the help in advance.

  My config on R4 and R5 is similar (diff only in spid and DN )

  dialer-list 1 protocol ip permit

  R5#sh run | be BRI
  interface BRI2/0
  ip address 183.1.45.5 255.255.255.248
  encapsulation ppp
  ip ospf demand-circuit
  dialer idle-timeout 180 either
  dialer map ip 183.1.45.4 name R4 broadcast 8358661
  dialer map ip 183.1.45.4 name R4 broadcast 8358663
  dialer-group 1
  isdn switch-type basic-ni
  isdn spid1 0835866201 8358662
  isdn spid2 0835866401 8358664
  no cdp enable
  ppp authentication pap
  ppp pap sent-username R5 password 0 CISCO
  ppp multilink
  ppp multilink links minimum 2
  !
  !

  R5#sh isdn acti
  ---------------------------------------------------------------------------
-----
                                  ISDN ACTIVE CALLS
  ---------------------------------------------------------------------------
-----
  Call Calling Called Remote Seconds Seconds Seconds Charges
  Type Number Number Name Used Left Idle
Units/Currency
  ---------------------------------------------------------------------------
-----
  Out ---N/A--- 8358661 R4 1591 Unavail - 0
  In 8358663 8358662 R4 1589 Unavail -
  ---------------------------------------------------------------------------
-----

  R4>sh ver
  Cisco IOS Software, 3600 Software (C3640-I-M), Version 12.3(11)T3,
  RELEASE SOFTWARE (fc4)

  --
  Kind Regards,

  Bajo

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