3Com 6416SW manual Network Prefix, Afi

Network Prefix

The

fields

that

make

up

the Network Prefix part of an ATM address include:

AFI

The

one-byte

AFI

identifies

the

authority

allocating the portion of the addres

that follows. It defines the structure of the NSAP format. The AFI values

accepted

by

the

ONcore

ATM

subsystem

are

as

follows:

39

(ATM

format

of the Domain-Specific

Part)

45

(ATM

format

of

the

E.164

Initial

Domain

Identifier)

47

(ATM

format

of

the

International

Code

Designator).

DCC Data Country Code (2 bytes)

Specifies the country in which the address is registered. The codes are given in ISO-3166.

This value is handled as a bit mask and is not checked by the ATM subsystem.

DFI Domain-specific Format Identifier (1 byte)

Specifies the structure, semantics, and administrative requirements for the remainder of the address.

This value is handled as a bit mask and is not checked by the ATM subsystem.

AAAdministrative Authority (3 bytes)

Identifies the organizational entity that allocates addresses for the remainde of the domain-specific part.

This value is handled as a bit mask and is not checked by the ATM subsystem.

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