Specifications

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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
Chapter 3 Operations
Modem Management Operations
17 pri 2104 6w0d
18 pri 1664 5w1d
19 pri 1395 3w6d
20 pri 1094 3w3d
21 pri 811 2w6d
22 pri 688 2w0d
23 pri 482 1w3d
Total DS0's Active High Water Mark: 46
Using Modem Call-Record Terse
Starting with Cisco IOS Releases 11.3AA and 12.0T, modem call records can be sent to syslog and
examined to perform statistical analysis.
For example, you can monitor:
• Modulation trends such as V.90 verses V.34
• Call time durations (consistent short connection times on a modem, regular Lost Carrier counts)
• Unavailable user IDs
• PPP negotiation or authentication failures
The following example enables modem call-records and sends the logs to wherever your syslog output
goes, for example:
• To the console—If you do not have the no logging console command enabled.
• To the terminal line—If you have the terminal monitor command enabled.
• To a syslog host—If you have one configured.
5800-NAS# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
5800-NAS(config)# modem call-record terse
*Jan 1 04:19:50.262: %CALLRECORD-3-MICA_TERSE_CALL_REC: DS0 slot/contr/chan=0/0/0,
slot/port=2/0, call_id=18, userid=(n/a), ip=0.0.0.0, calling=4082329440,
called=5710945, std=V.34+, prot=LAP-M, comp=V.42bis both, init-rx/tx
b-rate=26400/26400, finl-rx/tx b-rate=26400/26400, rbs=0, d-pad=None, retr=2, sq=3,
snr=25, rx/tx chars=79/94701, bad=0, rx/tx ec=60/204, bad=521, time=698,
finl-state=Steady, disc(radius)=(n/a)/(n/a), disc(modem)=A220 Rx (line to host) data
flushing - not OK/EC condition - locally detected/received DISC frame -- normal LAPM
termination
Using SNMP
Modem connect speeds can be graphed using SNMP MIBs. The graph shown in Figure 3-13 was created
with Cisco Access Manager (CAM). The graph describes the modem connect-speed performance
activity of one NAS for one month. The following connect speeds are transmitted by the NAS and
received by the client modem. Most of the calls performed between 28000 and 31200 bps. This NAS is
one member of an access stack.
For discussions on enabling management protocols such as NTP, SNMP, and Syslog, refer to Chapter 4,
“Administration.”