1、American National StandardDeveloped byfor Information Technology Fibre Channel Framing and Signaling-2(FC-FS-2)ANSI INCITS 424-2007ANSIINCITS424-2007Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without l
2、icense from IHS-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSIINCITS 424-2007American National Standardfor Information Technology Fibre Channel Framing and Signaling-2
3、(FC-FS-2)SecretariatInformation Technology Industry CouncilApproved February 1, 2007 American National Standards Institute, Inc.AbstractThis standard describes the framing and signaling requirements for Fibre Channel links. The PhysicalInterface requirements are described in Fibre Channel-Physical I
4、nterfaces (FC-PI-x). The Link Servicesrequirements are described in Fibre Channel-Link Services (FC-LS). This standard is recommended fornew implementations but does not obsolete the existing Fibre Channel standards.Copyright American National Standards Institute Provided by IHS under license with A
5、NSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other criteria for approval havebeen met by the standards developer.Consensus is established w
6、hen, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority, but not necessarily unanimity. Consensus requires that allviews and objections be considered,
7、and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedthe standards or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or
8、procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no person shall have the right or authority to issue aninterpretation of an American National
9、 Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures
10、 of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current information on all standards by calling or writing the AmericanNational Standards Institute.American Nati
11、onal StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2007 by Information Technology Industry Council (ITI)All rights reserved.No part of this publication may be reproduced in anyform, in an electronic retrieval system or otherwise,witho
12、ut prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of AmericaCAUTION: The developers of this standard have requested that holders of patents that may be re-quired for the implementation of the standard disclose such patents to the publisher. Ho
13、wever, nei-ther the developers nor the publisher have undertaken a patent search in order to identify which, ifany, patents may apply to this standard. As of the date of publication of this standard, followingcalls for the identification of patents that may be required for the implementation of the
14、standard,notice of one or more such claims has been received. By publication of this standard, no positionis taken with respect to the validity of this claim or of any rights in connection therewith. The knownpatent holder(s) has (have), however, filed a statement of willingness to grant a license u
15、nderthese rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to ob-tain such a license. Details may be obtained from the publisher. No further patent search is con-ducted by the developer or publisher in respect to any standard it processes. No representation isma
16、de or implied that this is the only license that may be required to avoid infringement in the use ofthis standard.Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Ameri
17、can National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHSContentsPageForeword xxxvii1 Scope 12 References 12.1 Qualification and availability of references 12.2 Approved references . 22.3 References under d
18、evelopment 22.4 Other references . 33 Definitions, abbreviations, conventions and keywords . 43.1 Definitions . 43.2 Editorial conventions . 123.3 Abbreviations, acronyms, and symbols 133.3.1 Acronyms and other abbreviations . 133.3.2 Symbols 163.4 Keywords 164 Structure and Concepts 184.1 Introduct
19、ion . 184.2 FC-1 general description . 194.3 FC-2 general description . 204.4 Physical model 214.5 Communication models 214.5.1 Introduction . 214.5.2 Hunt Group . 234.6 Bandwidth . 234.7 Topology . 234.7.1 Types 234.7.2 Point-to-point topology 234.7.3 Fabric topology . 234.7.4 Arbitrated Loop topol
20、ogy . 244.8 Classes of service . 254.8.1 General . 254.8.2 Class 1 service - dedicated connection 254.8.3 Class 2 service - multiplex 264.8.4 Class 3 service - datagram . 264.8.5 Class 6 multicast connection . 264.9 Intermixing other classes with Class 1 or Class 6 . 264.10 General Fabric model . 27
21、4.10.1 General 27i4.10.2 Fabric Ports (Fx_Ports) . 294.10.3 Connection Service . 29-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHSPage4.10.4 Connectionless Service 304.11 Gener
22、ic Services 304.12 Building Blocks 304.12.1 Building block hierarchy 304.12.2 Frame . 314.12.3 Sequence 314.12.3.1 Introduction . 314.12.3.2 Sequence_Identifier (SEQ_ID) . 314.12.3.3 Sequence Status Blocks . 324.12.4 Exchange 324.12.4.1 Introduction . 324.12.4.2 Exchange_Identifiers (OX_ID and RX_ID
23、) . 324.12.4.3 Association_Header 324.12.4.4 Exchange Status Blocks . 334.12.5 Protocols . 334.12.5.1 Primitive Sequence protocols . 334.12.5.2 Fabric Login protocol 334.12.5.3 Nx_Port Login protocol . 334.12.5.4 Data transfer protocol . 334.12.5.5 Nx_Port Logout protocol . 334.12.5.6 Fabric Logout
24、protocol . 334.13 Segmentation and reassembly of application data . 344.14 Error detection and recovery 345 FC-1 8B/10B transmission code . 355.1 Introduction . 355.2 Notation conventions 355.3 Character encoding and decoding 365.3.1 Introduction . 365.3.2 Transmission order . 365.3.3 Valid and inva
25、lid Transmission Characters . 375.3.3.1 Definitions . 375.3.3.2 Generating Transmission Characters . 435.3.3.3 Validity of received Transmission Characters . 435.4 Word encoding and decoding . 445.5 Ordered Sets 445.5.1 General . 445.5.2 Frame delimiters . 455.5.3 Primitive Signals . 475.5.3.1 Intro
26、duction . 475.5.3.2 Idle 475.5.3.3 Receiver_Ready (R_RDY) 485.5.3.4 Virtual Circuit Ready (VC_RDY) . 485.5.3.5 BB_SCs 485.5.3.6 BB_SCr . 485.5.3.7 SYNx, SYNy, SYNz 485.5.3.8 ARByx, ARB(val) 48ii5.5.3.9 ARBff 48-,-,-Copyright American National Standards Institute Provided by IHS under license with AN
27、SI Not for ResaleNo reproduction or networking permitted without license from IHSPage5.5.3.10 CLS . 485.5.3.11 DHD 485.5.3.12 MRKtx . 485.5.3.13 OPNyx . 485.5.3.14 OPNyy . 495.5.3.15 OPNyr . 495.5.3.16 OPNfr 495.5.4 Primitive Sequences . 495.5.4.1 Introduction . 495.5.4.2 Not_Operational (NOS) . 505
28、.5.4.3 Offline (OLS) . 505.5.4.4 Link Reset (LR) . 505.5.4.5 Link Reset Response (LRR) . 505.5.4.6 Loop Initialization - F7, F7 . 505.5.4.7 Loop Initialization - F8, F7 . 505.5.4.8 Loop Initialization - F7, x . 505.5.4.9 Loop Initialization - F8, x . 515.5.4.10 Loop Initialization - reset . 515.5.4.
29、11 Loop Initialization - - reset all 515.5.4.12 Loop Initialization - reserved . 515.5.4.13 Loop Port Bypass 515.5.4.14 Loop Port Bypass all . 515.5.4.15 Loop Port Enable 515.5.4.16 Loop Port Enable all 516 FC-1 Receiver State Diagram . 526.1 Introduction . 526.2 Receiver 526.2.1 Introduction . 526.
30、2.2 State Diagram Overview . 526.2.3 Operational and Not Operational conditions . 536.2.4 Word Synchronization Procedure . 546.2.4.1 Bit Synchronization . 546.2.4.2 Transmission Word synchronization . 546.2.4.2.1 Introduction 546.2.4.2.2 Achieving Word Synchronization . 546.2.4.2.3 Word alignment me
31、thods . 546.2.4.2.3.1 Continuous-mode alignment . 546.2.4.2.3.2 Explicit-mode alignment 556.2.5 Loss of Word Synchronization 556.2.5.1 Introduction . 556.2.5.2 Detection of Loss-of-Signal . 556.2.5.3 Detection of an invalid Transmission Word . 556.2.6 State transitions 556.2.6.1 Default State . 556.
32、2.6.2 Loss of Synchronization state . 556.2.6.3 Word Synchronization Acquired states . 566.2.6.3.1 Loss-of-Synchronization procedure 566.2.6.3.2 No Invalid Transmission Word Detected state 566.2.6.3.3 First Invalid Transmission Word Detected state 56iii6.2.6.3.4 Second Invalid Transmission Word Dete
33、cted state 56-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHSPage6.2.6.3.5 Third Invalid Transmission Word Detection state . 576.2.6.4 Reset state 577 FC_Port state machine . 58
34、7.1 State diagram . 587.2 Active State (AC) 587.3 Link Recovery 587.3.1 Link Recovery hierarchy . 587.3.2 LR Transmit State (LR1) . 587.3.2.1 General (while in the LR1 state) . 587.3.2.2 Class 1 (while in the LR1 state) 587.3.2.3 Class 2 and Class 3 (while in the LR1 state) 607.3.2.4 Class 6 (while
35、in the LR1 state) 607.3.3 LR Receive State (LR2) 607.3.3.1 General (while in the LR2 state) . 607.3.3.2 Class 1 (while in the LR2 state) 607.3.3.3 Class 6 (while in the LR2 state) 607.3.4 LRR Receive State (LR3) . 607.3.4.1 General (while in the LR3 state) . 607.3.4.2 Class 1 and Class 6 behavior (w
36、hile in the LR3 state) . 607.4 Link Failure . 617.4.1 NOS Receive State (LF1) . 617.4.2 NOS Transmit State (LF2) 617.5 Offline . 617.5.1 General . 617.5.2 OLS Transmit State (OL1) 617.5.3 OLS Receive State (OL2) . 627.5.4 Wait for OLS State (OL3) 627.6 Primitive Sequence Protocols . 627.6.1 Function
37、s 627.6.2 Link Initialization Protocol . 627.6.3 Link Reset Protocol . 637.6.4 Link Failure Protocol . 637.6.5 Online-to-offline Protocol 638 Frame formats 648.1 General frame format 648.2 Extended_Headers . 648.3 Frame transmission 648.4 Start-of-Frame (SOF) delimiter . 658.4.1 Introduction . 658.4
38、.2 SOF Connect Class 1 or 6 (SOFc1) 658.4.3 SOF Initiate (SOFix) 658.4.3.1 Applicability . 658.4.3.2 SOF Initiate Class 1 or 6 (SOFi1) 658.4.3.3 SOF Initiate Class 2 (SOFi2) . 658.4.3.4 SOF Initiate Class 3 (SOFi3) . 65iv8.4.4 SOF Normal (SOFnx) 65-,-,-Copyright American National Standards Institute
39、 Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page8.4.4.1 Applicability . 658.4.4.2 SOF Normal Class 1 or 6 (SOFn1) 658.4.4.3 SOF Normal Class 2 (SOFn2) . 658.4.4.4 SOF Normal Class 3 (SOFn3) . 668.4.5 SOF Fabric (SOFf) 66
40、8.5 Frame_Header 668.6 Data Field 668.7 CRC 668.8 End-of-Frame (EOF) delimiter . 678.8.1 Introduction . 678.8.2 Valid frame content . 678.8.2.1 EOF Normal (EOFn) 678.8.2.2 EOF Terminate (EOFt) 678.8.2.3 EOF Disconnect Terminate (EOFdt) (Class 1 or Class 6) . 678.8.3 Invalid frame content . 688.8.3.1
41、 General . 688.8.3.2 End of Frame Abort (EOFa) 688.8.3.3 EOF Disconnect Terminate Invalid (EOFdti) (Class 1 and Class 6) 688.8.3.4 EOF Invalid (EOFni) 688.9 Frame field order . 698.10 Frame reception 708.10.1 Rules . 708.10.2 Frame validity 718.10.3 Invalid frame processing . 719 Frame_Header 729.1
42、Introduction . 729.2 Identification . 729.2.1 Frame identification 729.2.2 Sequence identification . 729.3 Routing Control (R_CTL) 739.3.1 Introduction . 739.3.2 ROUTING Field . 739.3.3 INFORMATION Field 739.4 Address identifiers (D_ID, S_ID) . 759.4.1 General . 759.4.2 Reserved address identifiers
43、769.4.3 Destination_ID (D_ID) . 769.4.4 Source_ID (S_ID) 769.5 Class Specific Control (CS_CTL)/Priority 779.5.1 Introduction . 779.5.2 CS_CTL 779.5.2.1 General . 779.5.2.2 Class 1 and Class 6 779.5.2.3 Class 2 789.5.2.4 Class 3 78v9.5.3 Priority 79Copyright American National Standards Institute Prov
44、ided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page9.5.3.1 Introduction . 799.5.3.2 Class 1 and Class 6 799.5.3.3 Class 2 and Class 3 809.6 Data structure type (TYPE) . 809.7 Frame Control (F_CTL) 829.7.1 Introduction . 829.7.2
45、Exchange Context 849.7.3 Sequence Context 849.7.4 First_Sequence . 849.7.5 Last_Sequence . 859.7.6 End_Sequence . 859.7.7 End_Connection (E_C) (Class 1 or 6) 859.7.8 CS_CTL/Priority Enable 859.7.9 Sequence Initiative . 869.7.10 ACK_Form 869.7.11 Retransmitted Sequence 869.7.12 Unidirectional Transmi
46、t . 869.7.13 Continue Sequence Condition 879.7.14 Abort Sequence Condition 879.7.15 Relative offset present 899.7.16 Exchange reassembly 899.7.17 Fill Data Bytes . 899.7.18 F_CTL bits on Data frames . 909.7.19 F_CTL bits on Link_Control frames 919.8 Sequence_ID (SEQ_ID) . 939.9 Data Field Control (D
47、F_CTL) 939.10 Sequence count (SEQ_CNT) . 949.11 Originator Exchange_ID (OX_ID) . 949.12 Responder Exchange_ID (RX_ID) 959.13 Parameter . 9510 Extended_Headers . 9610.1 Introduction . 9610.2 VFT_Header and Virtual Fabrics 9610.2.1 Overview . 9610.2.2 VF Capable N_Port Logical Model . 9810.2.3 Tagging
48、 Process . 9810.2.4 VFT_Header Format . 9910.3 Inter-Fabric Routing Extended Header (IFR_Header) 10010.3.1 Overview . 10010.3.2 IFR_Header format . 10110.4 Encapsulation Extended Header (Enc_Header) . 10211 Optional headers 10311.1 Introduction . 103vi11.2 ESP_Header . 105Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page11.3 Network_Header . 10711.4 Association_Header 10711.4.1 Introduction . 10711.4.2 Process_Associators . 10
