Cisco Systems DC-145 manual Checking Other Modem Settings, DC-155

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Configuring and Managing External Modems

Checking Other Modem Settings

Checking Other Modem Settings

This section defines other settings that might be needed or desirable, depending on your modem.

Error correction can be negotiated between two modems to ensure a reliable data link. Error correction standards include Link Access Procedure for Modems (LAPM) and MNP4. V.42 error correction allows either LAPM or MNP4 error correction to be negotiated. Modems differ in the way they enable error correction. Refer to your modem documentation for the error correction methods used with your modem.

Data compression can be negotiated between two modems to allow for greater data throughput. Data com- pression standards include V.42bis and MNP5. Modems differ in the way they enable data compression. Refer to your modem documentation for the data compression settings used with your modem.

Cisco IOS Dial Technologies Configuration Guide

DC-155

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Contents DC-145 External Modems on Low-End Access ServersDC-146 Automatically Configuring an External ModemDC-147 Using the Modem Autoconfigure Type Modemcap FeatureUsing the Modem Autoconfigure Discovery Feature DC-148 Manually Configuring an External ModemDC-149 Command PurposeSupporting Dial-In Modems DC-150 Answer timeoutDC-151 Testing the Modem ConnectionDC-152 Managing Telnet SessionsDC-153 Suspending Telnet SessionsDC-154 Modem Troubleshooting TipsProblem Likely Cause DC-155 Checking Other Modem SettingsDC-156