User Manual

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6 Frame Relay

LMI (Local Management Interface of ITU-T Q.933 or

ANSI T1.617), since this procedure uses DLCI 1023 or

DLCI 0,

Establishing of connections for SVCs (uses DLCI 0),

Multiple transmissions (uses DLCI 1019 ... 1022).

6.1.1 Frame Relay-Address array

Table 3 shows the structure of the 2 Byte long Address array:

8 7 6 5 4 3 2 1

DLCI 10 DLCI 9 DLC I 8 DLCI 7 DLCI 6 DLCI 5 C/R EA

DLCI 4 DLCI 3 DLCI 2 DLCI 1 FECN BECN DE EA

Table 3 Structure of the 2 Byte long address array

Explanation:

• DLCI

Data Link Connection Identifier

• C/R

Command Response Bit

• EA

Address Array Extension Bit

• FECN

Forward Explicit Congestion Notification

• BECN

Backward Explicit Congestion Notification

• DE

Discard Eligibility Indicator

The node address of the WIMAN is determined by the high or-

der-bits (DLCI 03...DLCI 10) of the DLCI number. The low or-

der bits (DLCI 1...DLCI 2) are used for virtual connections.

2-Byte-Adress

arra