Specifications

Table Of Contents
3-15
Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
Chapter 3 Operations
Verifying Modem Performance
Step 11 Generate traffic across the modem link. Force the answering modem (in the NAS) to send a data stream
to the client modem. The data stream generated by the show modem log command is about 1 MB.
The data should scroll freely for one or two minutes.
5800-NAS> show modem log
doc-rtr58-01#sh modem log
Modem 1/2/00 Events Log:
3w2d :Startup event:MICA Hex modem (Managed)
Modem firmware = 0.7.3.7
2w2d :Modem State event:
State:Terminate
2w2d :Modem State event:
State:Idle
Modem 1/2/01 Events Log:
3w2d :Startup event:MICA Hex modem (Managed)
Modem firmware = 0.7.3.7
2w2d :Modem State event:
State:Terminate
2w2d :Modem State event:
State:Idle
Modem 1/2/02 Events Log:
3w2d :Startup event:MICA Hex modem (Managed)
Modem firmware = 0.7.3.7
2w2d :Modem State event:
State:Terminate
2w2d :Modem State event:
State:Idle
Step 12 Look at the modems operational statistics and verify that you have acceptable speed, line shape, and
throughput. In this example, modem 1/2 accepts the call.
If you do not have a scroll bar in your Telnet application, limit terminal length to 24 lines to see all the
command output.
If you are using Microcom modems, enter the modem at-mode slot/port command followed by the
at@e1 command.
5800-NAS> show modem operational-status 1/2/00
Modem(1/2/00) Operational-Status:
Parameter #0 Disconnect Reason Info: (0x0)
Type (=0 ): <unknown>
Class (=0 ): Other
Reason (=0 ): no disconnect has yet occurred
Parameter #1 Connect Protocol: LAP-M
Parameter #2 Compression: V.42bis both
Parameter #3 EC Retransmission Count: 0
Parameter #4 Self Test Error Count: 0
Parameter #5 Call Timer: 597 secs
Parameter #6 Total Retrains: 0
Parameter #7 Sq Value: 4
Parameter #8 Connected Standard: V.34+
Parameter #9 TX,RX Bit Rate: 33600, 33600
Parameter #11 TX,RX Symbol Rate: 3429, 3429
Parameter #13 TX,RX Carrier Frequency: 1959, 1959
Parameter #15 TX,RX Trellis Coding: 16, 16
Parameter #16 TX,RX Preemphasis Index: 0, 0
Parameter #17 TX,RX Constellation Shaping: Off, Off
Parameter #18 TX,RX Nonlinear Encoding: Off, Off
Parameter #19 TX,RX Precoding: Off, Off
Parameter #20 TX,RX Xmit Level Reduction: 0, 0 dBm
Parameter #21 Signal Noise Ratio: 41 dB