User's Manual

46 Chapter4

Protocol Specific Configuration

Poll/Select/Option Configuration Values

The following parameters for configurable for HDLC/LAP-D links:

SAPI The Service Access Point Identifier

TEI The Terminal Endpoint Identifier

U/N Operatingmode-UserorNetworkside

K Number of outstanding I frames

N200 Number of retransmissions allowed

N201 Largest I-field allowed (in bytes)

T200 Acknowledgment Timer

T203 Idle line Timer

UI Unnumbered Information terminal

T200 and T203 are configured by selecting a value (Val) and a resolution

(Res). Val can range from 1 to 31 and Res selects either 10 msec, 100

msec, 1 sec or 10 s ec resolution. For a given Val and Res, the configured

value is ( 2*Val Res). The actual timeout period however, may occur up to

one Res before the configured value. T he following table shows the

minimum and maximum timeouts for various combinations of Res and

Val.