Token-Ring Addresses (IBM Guidelines)

Für Token-Ring-MAC-Adressen, die vom lokalen Netzwerkverwalter eingesetzt (und die eingebrannten Hardware-MAC-Adressen übergangen) werden, empfiehlt IBM die folgenden Richtlinien.

Die zulässigen lokalen MAC-Adressen liegen im folgenden Adress-Bereich:

Von 40-00-00-00-00-00

bis 40-00-FF-FF-FF-FF

Machine Codes

40-00-XZ-ZZ-ZZ-ZZ X: 0 = Gateway or IS server

1 = Primary Bridge adapter

2 = Secondary Bridge adapter

3 = LAN servers

5 = Workstation

Z-ZZ-ZZ: Unique Station ID

3174 Token-Ring Controller

40-00-0B-A0-DD-DD B: 3174 Machine Type

A: Model Type:

0 = 01L

1 = 11L

2 = 03R

3 = 13R

4 = 01R

5 = 11R

DD-DD: Unique Station ID

37xx Gateways

40-00-09-AB-DD-DD 9: 37xx/3172 Gateway Machine

A: Machine Type

0 = 3720

1 = 3725

2 = 3725

3 = 3745

4 = 3172

B: TIC Number:

0 = 1st TIC

1 = 2nd TIC

2 = 3rd TIC

: :

: :

DD-DD: Unique Station ID

IS Servers

40-00-0E-AB-DD-DD E: Host/Server Type

A: Type

0 = AS/400

1 = 9370

2 = S/36

3 = Series 1

4 = PS/2

5 = Printer

6 = RISC/6000

B: Adapter Number

0 = First adapter

1 = Second adapter

DD-DD: Unique Station ID

Network Management and Performance

40-00-0F-AB-CD-DD F: Network Support Device

A: Device function

0 = LAN Manager

1 = Trace and Performance Tool

B: Adapter number

0 = First adapter

1 = Second adapter

C: Device number

D-DD: LAN segment number

Local Servers

40-00-3A-ZZ-ZZ-ZZ 3: Local Server

A: Sequence number of the server

ZZ-ZZ: The employee serial number of the server owner

Bridges

40-00-XA-BB-BC-CC X: Adapter

1 = Primary

2 = Secondary

A: Remote or local bridge number on the segment

0 = Remote bridge number 1 on the segment

1 = Remote bridge number 2 on the segment

2 = Remote bridge number 3 on the segment

A = Local bridge number 1 on the segment

B = Local bridge number 2 on the segment

C = Local bridge number 3 on the segment

BB-B: Higher segment number

C-CC: Lower segment number

Literatur:

Sacket: IBM's Token-Ring Networking Handbook