User's Manual

4-31

4.9.1.4 Input Pause Feature

See Figure 4 - 16. Checking the box next to Allow Input Pause makes the auto-negotiation

function willing to stop receiving trafﬁc. When the radio input buffers approach overﬂow,

the function sends a pause message to the ink partner that is transmitting data to the

radio, telling the device to temporarily stop sending data. The link partner will stop send

ing data if the device has and is provisioned with the Allow Option Pause function.

If the link partner is either not equipped with or is not provisioned for input pause, data

overﬂowing the registers in the radio will be lost, regardless of the provisioning for input

pause in the radio. Any time there is an overﬂow, the radio will alarm and indicate

Dropped Frames on the Performance Monitor screens.

Figure 4 - 16 Input/Output Pause Messaging

MDR-8000E

Ethernet

Radio

Link

Partner

Buffer

Near Full

Data Flow

MDR-1113

02/14/04

Pause Msg

Allow RX Pause Message