Information Technology Reference
In-Depth Information
show modem connect-speeds
As a way for an access server's administrator to maintain a watch on the user community's connection
speeds, the show modem connect command allows the admin to see how many people are getting each
rate of speed. This is useful in trend analysis.
router> show modem connect 33600 0
Mdm 26400 28000 28800 29333 30667 31200 32000 33333 33600 TotCnt
Tot 614 0 1053 0 0 1682 0 0 822 6304
router> show modem connect 56000 0
Mdm 48000 49333 50000 50666 52000 53333 54000 54666 56000 TotCnt
Tot 178 308 68 97 86 16 0 0 0 6304
Expect to see a healthy distribution of V.34 speeds. There should be a peak at 26.4 if the T1s use channel
associated signaling (CAS). For ISDN (PRI) T1s, the peak should be at 31.2. Also, look for a smattering
of K56Flex, V.90 speeds. If there are no V.90 connections, there may be a network topology problem.
modem call-record terse (11.3AA/12.0T)
Rather than an exec command, this is a configuration command placed at the system level of the access
server in question. When a user disconnects, a message similar to the following will be displayed:
*May 31 18:11:09.558: %CALLRECORD-3-MICA_TERSE_CALL_REC: DS0 slot/contr/chan=2/0/18,
slot/port=1/29, call_id=378, userid=cisco, ip=0.0.0.0, calling=5205554099,
called=4085553932, std=V.90, prot=LAP-M, comp=V.42bis both, init-rx/tx b-rate=26400/41333,
finl-rx/tx brate=28800/41333, rbs=0, d-pad=6.0 dB, retr=1, sq=4, snr=29, rx/tx
chars=93501/94046,
bad=5, rx/tx ec=1612/732, bad=0, time=337, finl-state=Steady, disc(radius)=Lost
Carrier/Lost Carrier, disc(modem)=A220 Rx (line to host) data flushing - not OK/EC
condition - locally detected/received
DISC frame -- normal LAPM termination
show modem operational-status
The exec command show modem operational-status shows the current (or last) parameters pertaining
to the modem's connection.
The documentation entry for this command is found in the Cisco IOS Release 12.0 Dial Solutions
Command Reference . show modem operational-status is only for MICA modems. The equivalent
command for Microcom modems is modem at-mode / AT@E1 . Use the modem at-mode
<slot>/<port> command to connect to the modem, and issue the AT@E1 command. Complete
documentation for the modem at-mode command can be found in the Cisco AS5300 Software
Configuration Guide , and documentation for the AT@E1 command is in the AT Command Set and
Register Summary for Microcom Modem Modules Command Reference .
Use these two steps to find out what modems a user is coming in on.
Step 1
Issue the command show user and look for the TTY that they are connected into.
Step 2
Use the command show line and look for the modem slot/port numbers.
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