Cisco AS5800 Specifications download pdf (Page 133)

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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide

DOC-7810814=

Chapter 3 Operations

Modem Management Operations

Step 3 Display the disconnect reasons for the modems that trained up:

5800-NAS# show modem call-stats 0

dial-in/dial-out call statistics

compress retrain lostCarr userHgup rmtLink trainup hostDrop wdogTimr

Mdm # % # % # % # % # % # % # % # %

Total 237 916 413 124 9999 1064 8496 0

dial-out call statistics

noCarr noDitone busy abort dialStrg autoLgon dialTout rmtHgup

Mdm # % # % # % # % # % # % # % # %

Total 1715 0 0 0 0 0 0 0

Table 3-12 describes some of the significant fields in the previous example.

Besides the “hostDrop” message, all other disconnect reasons are not good. If the call trained up without

EC, then the peer modem will probably not communicate an orderly disconnect with the Cisco IOS

software. For example, the messages “lostCarr” or “retrain” might be displayed even though the peer

DTE voluntarily disconnected. The collective total of disconnect reasons should be less than 10% of the

total number of calls.

Table 3-12 Show Modem Call-Status Field Descriptions

Field Description

rmtLink 9999

RmtLink is the most common disconnect reason. RmtLink means that the modem

trained up, error correction was negotiated, and the client DTE decided to hang up.

All the call-stat counters do not go higher than 9999.

hostDrop

HostDrop (or dtrDrop) means the Cisco IOS software (DTE) informed the modem to

terminate the call. For example:

• Idle timeouts

• Absolute timeouts

• Authentication failures

• PPP negotiation failures

• The Cisco IOS software learns from the telephone switch that the DS0 was

disconnected.

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Cisco AS5800 Specifications Page 133