3Com 6416SW manual Icd/Dfi/Aa, Area

E.164 E.164 IDI (8 bytes)

Specifies the international addressing format used by B-ISDN public

transport providers and is up to 15 digits long (BCD syntax). This field is padded with leading '0000' semi-bytes to reach the maximum length. A

closing semi-byte '1111' is used to obtain an integral number of bytes.

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

ICD International Code Designator (2 bytes)

Identifies an international organization. Values and codes (BCD syntax) are assigned by the ISO-6523 registration authority.

This

code

is

handled as

a

bit mask and

is

not

checked by the

ATM

subsystem.

Reserved

2

bytes

set

to

binary

zero.

RDN

Routing Domain Number (2 bytes)

Specifies

a domain

that

is

unique within

one

of

the

following:

E.164

DCC/DFI/AA

ICD/DFI/AA

and

that

allows

for

the

same addressing

scheme

and

administrative

authority

to be used.

Area

Area

(2

bytes)

Specifies an area unique within a routing domain for the purpose of hierarchical routing and efficient use of resources based on topological significance.

In an ONcore ATM subsystem, this value consists of two 1-byte subfields:

ACN The ATM Cluster Number

HNThe Hub Number

E-4 ONcore ATM Switch/Control Module: Installation and User's Guide