Catalyst 3900 Token Ring Switch Release 3.0 User Guide
Codes and IDs
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Codes and IDs

Codes and IDs

This appendix includes information about the codes, IDs, and addresses that are used by functions of the Catalyst 3900. It includes the following sections:

Board IDs

Table E-1 lists the board IDs that may be displayed on the Module Information panel as described in the "Viewing Module Information" section of the "Configuring the Catalyst 3900" chapter.


Table E-1: Board IDs
Decimal ID Hexadecimal Description

30

1E

Catalyst 3900 20-port switch

31

1F

Catalyst 3920 24-port switch

40

28

4-port UTP/STP Token Ring module

42

2A

Token Ring Stack module

44

2C

ISL 2-port Fiber Token Ring module

45

2D

ISL 2-port Token Ring module

49

31

4-port Fiber Token Ring module

50

32

ATM module (Type MMF-SC)

52

34

ATM module (Type MMF-ST)

54

36

ATM module (Type UTP)

MAC Addresses

Table E-2 describes the non-canonical format used in assigning MAC addresses to the ports of the Catalyst 3900. The base address is assumed to be the burned-in address.


Table E-2: Port MAC Addresses
Port MAC Address

1

Base address + 01

2

Base address + 02

3

Base address + 03

4

Base address + 04

5

Base address + 05

6

Base address + 06

7

Base address + 07

8

Base address + 08

9

Base address + 09

10

Base address + 0A

11

Base address + 0B

12

Base address + 0C

13

Base address + 0D

14

Base address + 0E

15

Base address + 0F

16

Base address + 10

17

Base address + 11

18

Base address + 12

19

Base address + 13

20

Base address + 14

Module 1-1

Base address + 21

Module 1-2

Base address + 22

Module 1-3

Base address + 23

Module 1-4

Base address + 24

Module 2-1

Base address + 25

Module 2-2

Base address + 26

Module 2-3

Base address + 27

Module 2-4

Base address + 28

For VLANs, the MAC addresses are assigned sequentially starting with the base address plus 32. The base address is assumed to be the burned-in address.

Service Access Points

Table E-3 and Table E-4 list the SAPs that may be used in defining protocol classes as described in the "Assigning Classes for Protocol Filtering" section of the "Configuring the Catalyst 3900" chapter.


Table E-3: IEEE Defined SAPs
Hexadecimal Value Description

X'02'

LLC Sublayer Management

X'06'

DoD Internet

X'x6'

National Standards Bodies

X'0E'

Proway Network Management

X'4E'

Manufacturing Message Service

X'7E'

ISO 8208

X'8E'

Proway Active Station List Maintenance

X'FE'

OSI Network Layer Protocols

X'E0'

IPX

X'42'

Bridge Spanning-Tree Protocol

Table E-4: IBM Defined SAPs
Hexadecimal Value Description

X'04'

SNA Path Control Individual

X'F0'

NetBIOS

X'F4'

LAN Management Individual

X'F8'

IMPL

X'FC'

Discovery

X'DC'

Dynamic Address Resolution

X'D4'

Resource Management

Ethertypes

Table E-5 lists the possible ethertypes that you can use in defining protocol filters.


Table E-5: Ethertypes
Hexadecimal Value Description

X'0000' through X'05DC'

IEEE 802.3

X'0600'

Xerox XNS IDP

X'0800'

DoD IP

X'0801'

X.75 Internet

X'0802'

NBS Internet

X'0803'

ECMA Internet

X'0804'

CHAOSnet

X'0805'

X.25 Level 3

X'0806'

ARP (for IP and CHAOS)

X'6001'

DEC MOP Dump/Load Assistance

X'6002'

DEC MOP Remote Console

X'6003'

DEC DECnet Phase IV

X'6004'

DEC LAT

X'6005'

DEC DECnet Diagnostics

X'6010' through X'6014'

3Com Corporation

X'7000' through X'7002'

Ungermann-Base download

X'7030'

Proteon

X'7034'

Cabletron

X'8035'

Reverse ARP

X'8046' through X'8047'

AT&T

X'8088' through X'808A'

Xyplex

X'809B'

Kinetics Ethertalk (Appletalk over Ethernet)

X'80C0' through X'80C3'

Digital Communications Associates

X'80D5'

IBM SNA Services over Ethernet

X'80F2'

Retix

X'80F3' through X'80F5'

Kinetics

X'80F7'

Apollo Computer

X'80FF' through X'8103'

Wellfleet Communications

X'8137' through X'8138'

Novell