04-20-2004 09:38 AM - edited 03-02-2019 03:07 PM
I have a 3725 with 6 internal Digital modems.
These are accessed via 3 BRIs' assigned to an Async Interface.
The problem I am experiencing is when I use a PC/Laptop to connect to the network using a US Robotics modem the initial connection works fine, But if I hang up and dial again the digital modems assigned to the Async Interface are locked.
Issuing the "clear modem all" resets then for use again.
I have tried different O/S on the PCs' same problem, any other modem type I have tried is fine.
I have seen "web-posts" regarding firmware to recognize certain modems.
Can anybody help me, I'm going nuts
04-20-2004 10:26 AM
When a digital modem is locked/stuck, do you continue to see the existence of the last call if you do a "show user" or "show caller"? Could you post the IOS version, MICA portware version and your tty lines config? What does debug modem/debug csm modem show when you intiate the next call?
~Zulfi
04-20-2004 11:05 AM
To answer your questions:
When a modem is stuck/locked the user or caller doesnt show.
The IOS version is 12.3-1a
This the output of "show modem version"
Slot 1:MICA-6DM Firmware, Source - IOS
CP ver 2940 - 7/24/2002, CheckSum BB345F13.
SP ver 2940 - 7/24/2002.
MICA 0: HW Version 1.0, Serial Number 30387330.
Config:
interface Group-Async7
ip unnumbered Loopback0
encapsulation ppp
async mode interactive
peer default ip address pool XXXXXXXX
no keepalive
no fair-queue
ppp authentication pap
group-range 33 34
interface Dialer7
ip unnumbered Loopback0
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer-group 1
peer default ip address pool XXXXXXXX
no fair-queue
ppp authentication chap
line 33 38
flush-at-activation
modem InOut
transport input all
transport output none
autoselect ppp
flowcontrol hardware
I dont have a firmware for the modems, hence my curiousity
Here is the result of the debug modem on the second call.
The modem should not reach Modem1/2 Mica
Mar 2 01:14:11: Modem 1/2 Mica: in modem state LINK
*Mar 2 01:14:14: Modem 1/2 Mica: in modem state RANGING
*Mar 2 01:14:16: Modem 1/2 Mica: in modem state HALF_DUPLEX_TRAIN
*Mar 2 01:14:23: Modem 1/2 Mica: in modem state TRAINUP
*Mar 2 01:14:32: Modem 1/2 Mica: in modem state EC_NEGOTIATING
*Mar 2 01:14:33: Modem 1/2 Mica: in modem state STEADY
*Mar 2 01:14:33: Modem 1/2 Mica: received ConnectInfo
*Mar 2 01:14:33: Modem 1/2 Mica: CONNECT at 42666/28800 (Tx/Rx), V90/92, LAPM,s
*Mar 2 01:14:33: TTY35: DSR came up
*Mar 2 01:14:33: tty35: Modem: IDLE->(unknown)
*Mar 2 01:14:33: TTY35: Autoselect started
*Mar 2 01:14:33: TTY35: create timer type 0, 120 seconds
*Mar 2 01:14:35: TTY35: Autoselect sample 7E
*Mar 2 01:14:35: TTY35: Autoselect sample 7EFF
*Mar 2 01:14:35: TTY35: Autoselect sample 7EFF7D
*Mar 2 01:14:35: TTY35: Autoselect sample 7EFF7D23
.
.
*Mar 2 01:14:35: TTY35: Autoselect failed
*Mar 2 01:14:35: TTY35: Line reset by "AutoSelect"
*Mar 2 01:14:35: TTY35: Modem: (unknown)->HANGUP
*Mar 2 01:14:35: TTY35: destroy timer type 0
*Mar 2 01:14:35: TTY35: no timer type 1 to destroy
*Mar 2 01:14:35: TTY35: no timer type 3 to destroy
*Mar 2 01:14:35: TTY35: no timer type 4 to destroy
*Mar 2 01:14:35: TTY35: no timer type 10 to destroy
*Mar 2 01:14:35: TTY35: no timer type 2 to destroy
*Mar 2 01:14:35: TTY35: dropping DTR, hanging up
*Mar 2 01:14:35: tty35: Modem: HANGUP->IDLE
*Mar 2 01:14:35: Modem 1/2 Mica: in modem state TERMINATING
*Mar 2 01:14:35: Modem 1/2 Mica: received TerminateInfo
*Mar 2 01:14:35: Modem 1/2 Mica: in modem state IDLE
What am I doing wrong, I know its something stupid
04-20-2004 11:20 AM
Under the tty lines, put "no flush-at-activation". If this does not fix it, I would change async mode to dedicated instead of interactive under group-ascyn 7.
Last, I would move away from 12.3.1 .
FYI: Dialer 7 is not relevant here.
~Zulfi
04-21-2004 04:10 AM
Still no good Zulfi.
Does my 3725 need portware version 2.9.4.0 in the flash prior to booting.
I have doen further testing and the behaviour repeats itself for Xircom modems.
All the user modems are V92 56K
04-21-2004 07:52 PM
You need the 2940 portware file in flash/bootflash if you are not using the MICA code bundled in the IOS. Your SPE firmware location command is then set accordingly. So you may or may not need to have that portware in flash/bootflash prior to booting.
So this problem is only specific to Xircom modems? All other modems are not exhibiting this behaviour? If thats the case then I ll make sure you have the latest firmware from Xircom on those modems. This now sounds more like a client modem issue.
~Zulfi
04-26-2004 08:53 AM
Hi again,
I've tested on more modems and the problem repeats itself.
The only working model is an Agere (Lucent) modem built into a HP laptop.
The only thing I can think of is that the modem is sending something to terminate the connection correctly.
With the other modems when I re-dial after the inital successful connection, it tries each modem in the card despite the fact they are not assigned to the Async Interface.
I'm truely puzzled
04-26-2004 03:39 PM
Did you enable ppp debugs along with modem debugs? If not, please capture debug ppp nego, debug ppp chap also along with debug modem. Turn on timestamps with "service timestamps debug datetime msec".
~Zulfi
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