netman 2008-4-13 23:29
IEEE Std 802.5t-2000
【资料成文时间】： (Amendment to
ANSI/IEEE Std 802.5, 1998 Edition;
ANSI/IEEE Std 802.5r, 1998 Edition; and
ANSI/IEEE Std 802.5j, 1998 Edition)
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 13 January 2000
IEEE-SA Standards Board
【语言】：E
【页数】： 288
【何人（公司）所著】：
【文件格式】：
【文件原名】：
【摘要或目录】：
Contents
1. Changes to Clause 1 of ANSI/IEEE Std 802.5, 1998 Edition, and ANSI/IEEE Std 802.5r, 1998 Edition,
and ANSI/IEEE Std 802.5j, 1998 Edition ...................................................................................................... 1
1.1 Scope ................................................................................................................................................... 1
1.2 Normative references ............................................................................................................................ 1
1.3 Definitions ........................................................................................................................................... 2
1.5 Abbreviations and acronyms................................................................................................................. 2
1.6 Conformance requirements ................................................................................................................... 2
1.7 Fibre optic media conformance requirements ....................................................................................... 3
1.8 Local regulation ................................................................................................................................... 4
2.2 C-Port and Station functional organization and data flow..................................................................... 4
9. Dedicated Token Ring ............................................................................................................................... 7
9.1 DTR TXI and TKP Access Protocol support...................................................................................... 10
9.2 Station TXI Access Protocol specification ......................................................................................... 41
9.3 C-Port Join and TXI Access Protocol Specification ........................................................................... 89
9.7 C-Port specific components and specifications................................................................................. 127
9.8 PHY definition for HMR .................................................................................................................. 132
11. DTR Station and C-Port Management .................................................................................................. 142
11.1 DTR Station management ............................................................................................................... 142
11.2 C-Port management........................................................................................................................ 154
11.3 Management information definitions .............................................................................................. 166
13.9 100 Mbit/s PMCs ............................................................................................................................ 193
14. Formats and facilities for HMR ............................................................................................................ 195
14.1 Sequence definitions ....................................................................................................................... 195
14.2 Field descriptions........................................................................................................................... 197
14.3 MAC frames................................................................................................................................... 198
14.4 System timers................................................................................................................................. 203
14.5 Policy flags and variables ............................................................................................................... 204
Annex A (normative) Protocol Implementaiton Conformance Statement (PICS) proforma ....................... 209
Annex K (informative) DTR Concentrator Functional Description............................................................ 229
Annex L (informative) DTR Station and C-Port in Station Emulation Mode using the TXI Access
Protocol—Join, Transmit, and Monitor low-level FSMs—4 Mbit/s, 16 Mbit/s, and the HMR.................. 231
Annex M (informative) C-Port in Port Mode using the TXI and TKP Access Protocols—Join, Transmit,
and Monitor low-level FSMs—4 Mbit/s, 16 Mbit/s, and the HMR............................................................ 234
Annex N (informative) C-Port in Port Mode using the TKP Access Protocol—Transmit and Monitor lowlevel
FSMs—4 Mbit/s and 16 Mbit/s.......................................................................................................... 239
Annex O (informative) Channel considerations for 16 Mbit/s Token Ring ................................................ 240
Annex P (informative) Bit error rate (BER) criteria for lobe media testing................................................ 241
Annex Q (informative) DTR Station using the TKP Access Protocol—Join, Transmit, and Monitor lowlevel
FSMs—4 Mbit/s and 16 Mbit/s.......................................................................................................... 243
Annex R (informative) C-Port in Station Emulation Mode using the TKP Access Protocol—Join, Transmit,
and Monitor low-level FSMs—4 Mbit/s and 16 Mbit/s.............................................................................. 244
Annex T (informative) Auto-detection Protocol 4 Mbit/s and 16 Mbit/s using the TXI and TKP Access
Protocols .................................................................................................................................................... 245
Annex U (informative) 100 Mbit/s PHY design using 802.3 100BASE-X PHY implementations ............ 256
Annex V (informative) Group MAC address hashing................................................................................. 257
Annex W (informative) 100 Mbit/s PHY designs using MII variants......................................................... 258
Annex X (informative) LMT (FSMLTO=1) timing considerations ............................................................ 260
Annex Y (informative) Auto-detection protocol—HMR using the TXI Access Protocols......................... 262
Annex Z (informative) Auto-negotiation for High-speed Token Ring........................................................ 270
Annex AA (informative) Differences from ANSI/IEEE Std 802.5, 1998 Edition (Base standard) and
ANSI/IEEE Std 802.5r, 1998 Edition, and ANSI/IEEE Std 802.5j, 1998 Edition, (Amendment 1) .......... 271