BOOK_CONTENT
From LAN Technologies Explained

Chapter List

Appendix A: Vendor Identification and Addressing
Appendix B: Ethernet Type Codes
Appendix C: A Glossary of Networking Terms
Appendix D: Bibliography

Ethernet, Token Ring, and FDDI hardware addresses are 48 bits (6 octets), expressed as 12 hexadecimal digits. These 12 hex digits consist of the first, leftmost 6 digits that match the vendor of the interface within the station, and the last, rightmost 6 digits which specify the interface serial number for that interface vendor. These addresses can be written in a number of ways. For example, the addresses might be written unhyphenated (e.g., 123456789ABC), with one hyphen (e.g., 123456789ABC), with colons between each octet (e.g., 12:34:56:78:9A:BC). Most people however write addresses hyphenated by octets (e.g., 12-34-56-78-9A-BC), and this has now become the accepted form.

A.1 Vendor Identification

The information contained in this section relates to physical station addresses, not multicast nor broadcast - hence, the second hex digit (reading from the left) will always be even, and never odd. Represented here, are the Organizationally Unique Identifiers (OUIs) of known vendors as taken from RFC 1700 (Assigned Numbers).

Table A-1: Vendor Information

OUI

Vendor

00-00-0C

Cisco

00-00-0E

Fujitsu

00-00-0F

NeXT

00-00-10

Sytek

00-00-1D

Cabletron Systems

00-00-20

DIAB (Data Industrier AB)

00-00-22

Visual Technology

00-00-2A

TRW

00-00-32

GPT Limited (reassigned from DEC Computers Ltd)

00-00-5A

S & Koch

00-00-5E

IANA

00-00-65

Network General

00-00-6B

MIPS

00-00-77

MIPS

00-00-7A

Ardent

00-00-89

Cayman Systems Gatorbox

00-00-93

Proteon

00-00-9F

Ameristar Technology

00-00-A2

Wellfleet

00-00-A3

Network Application Technology

00-00-A6

Network...

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