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Key Packet Formats

page 80

Clear Confirmation Packet Format

The format for a Clear Confirmation Packet is shown below. Octets consist of bits numbered

7 to 0 where bit 0 is the low order bit and is transmitted first. Octets are consecutively

numbered starting from 1 and are transmitted in this order. The General Format Identifier can

be coded 0001 for modulo 8 or to 0010 for modulo 128. See the CCITT X.25 Recommendation

for details.

*Semi-octet of zeroes is present only if combined total digits in DTE address block is odd

General Format ID Logical Channel Group

Logical Channel Number

Packet Type Identifier

0 0 0 1 0 1 1 1

Calling DTE Address Length Called DTE Address Length

Called DTE digit-1 ...

Callled DTE digit-n Calling DTE digit-1

Calling DTE digit-2 ...

Calling DTE digit-n 0* 0 0 0

Facility Length

Facilities

...

Clear Confirmation Packet Format

Bit

7 6 5 4 3 2 1 0

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 90 91

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Eicon Networks S52 Guide de l'utilisateur Page 82