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ISDN DDR wrong number of channel

syves
Level 1
Level 1

Dear All

I have a 3640 with 2 ISDN PRI, I use dialer interface to dial out to sites, I limit the number of channel that a dialer can bringup but the max-link number doesn't match the real # of channel dialed, attached is the dialer debug message config and ISDN service result. Does any one have a Idea about this issue.

May 27 10:00:53: Se3/1:15 DDR: has 18 ongoing call(s), maximum allowed call(s) 18 on pool 4, exceeded max

When only 14 channels are up

me680-2#sh isdn service

PRI Channel Statistics:

ISDN Se3/0:15, Channel [1-31]

Configured Isdn Interface (dsl) 0

Channel State (0=Idle 1=Proposed 2=Busy 3=Reserved 4=Restart 5=Maint_Pend)

Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

State : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Service State (0=Inservice 1=Maint 2=Outofservice)

Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

State : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ISDN Se3/1:15, Channel [1-31]

Configured Isdn Interface (dsl) 1

Channel State (0=Idle 1=Proposed 2=Busy 3=Reserved 4=Restart 5=Maint_Pend)

Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

State : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2

Service State (0=Inservice 1=Maint 2=Outofservice)

Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

State : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

interface Serial3/1:15

no ip address

encapsulation ppp

dialer pool-member 2 max-link 2

dialer pool-member 3

dialer pool-member 4 max-link 18

isdn switch-type primary-net5

ppp authentication chap

ppp multilink

interface Dialer20

description Connection to DR site

mtu 1400

ip address 10.x.x.x 255.255.255.252

ip accounting output-packets

encapsulation ppp

dialer pool 4

dialer remote-name mx-1

dialer idle-timeout 2000000

dialer string 86990700

dialer load-threshold 1 outbound

dialer-group 1

pulse-time 0

ppp authentication chap

1 Reply 1

Hello,

below is the output from the Output Interpreter, not sure if this is helpful:

SHOW ISDN SERVICE NOTIFICATIONS (if any)

WARNING: Channel 17 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 18 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 19 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 20 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 21 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 22 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 23 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 24 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 25 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 26 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 27 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 28 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 29 on interface Se3/1:15 is in the 'Busy' state.

WARNING: Channel 30 on interface Se3/1:15 is in the 'Busy' state.

This might indicate the actual state of the channels or could be a false signal

generated by use of the 'ISDN busy' command. This command was introduced in IOS

12.0 and is used to give the impression that a call is active when the channel is

actually idle.

TRY THIS: Examine the running configuration using the 'show running-config' enable

command. Look for any occurrence of the 'ISDN busy' command and use the 'no' form

of this command to remove this condition.

You may also check the amount of active Channel Control Blocks (CCBs) by issuing

the 'show isdn status' command.

Regards,

GP

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