ADTRAN 1204006L1 Manual do Utilizador descarregar pdf (Página 101)

61200.175L1-1 FSU 5622 ESP User Manual 85

Chapter 8. Configuring the Network Port

Signaling Type (SIGNAL)

Set the signaling type option to match the network signaling

type.

For point-to-point DDS operation, signalling should be set to NONE.

T391

Set the time between polls to the frame relay network.

N391

Determine how many link integrity polls occur in between full

status polls.

N392 and N393

These parameters define the error threshold for the UNI formed

by the FSU 5622 ESP network port and the frame relay switch. If

the error threshold is met, the signaling state status is changed to

down, which indicates a service-affecting condition. This

condition is cleared once N393 consecutive error-free events are

received. N392 defines the number of errors required in a given

event window, while N393 defines the number of polling events

in each window.

For example:

If N392=3 and N393= 4, then if three errors occur within any four

events the interface is determined inactive.

The status of the connection can be viewed in the Status menu

under Network Port Signaling State. The status will return to

active again once the threshold is no longer exceeded.

Remote FECN Notification (RFECN)

Enable/disable the FSU 5622 ESP to issue remote FECN (for-

ward explicit congestion notification). This feature ensures that

a frame will be generated in the reverse direction upon receiving

a frame with the FECN bit enabled. This is a proprietary feature

with ADTRAN FSU 5622 ESPs and can only be used with an

ADTRAN FSU 5622 ESP on both ends of the virtual circuit.

The network service provider should recommend the values entered into

the T391, N391, N392, and N393 fields.

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