ISO/IEC NTERNATIONAL STANDARD 14165-131 First edition 2000-05 Information technology - Fibre Channel - Part 131: Switch Fabric Requirements (FC-SW) IEC Reference number ISO/IEC 14165-131:2000(E) Copyright International Organization for Standardization itted without license from IHS Not for Resale yhemainaanaioSandardizato orneworkingmitedwithout licene fromH Not for Resale ISO/IEC INTERNATIONAL STANDARD 14165-131 First edition 2000-05 Information technology - Fibre Channel - Part 131: Switch Fabric Requirements (FC-Sw) ?ISO/IEC2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. ISO/IEC Copyright Office:Case postale 56·CH-1211Geneve 20·Switzerland IEC PRICE CODE X For price, see current catalogue Copyright International Organization for Standardization itted without license from IHS Not for Resale 14165-131 ISO/IEC:2000(E) Contents Page Foreword. Introduction. 1 Scope Normative references 2.1 General Provisions 2.2 Approved references 2.3 References under development 2.4 Other references 2 3 Definitions and conventions 2 3.1 Definitions 2 3.2 Editorial conventions 6 3.2.1 Binary notation 7 3.2.2 Hexadecimal notation 3.3 Abbreviations, acronyms, and symbols 7 3.3.1 Acronyms and abbreviations 7 3.3.2 Symbols . . 7 4 Structure and Concepts 9 4.1 Fabric 9 4.2 Switch 9 4.3 Switch Topologies 11 4.4 Switching characteristics 11 4.4.1 Synchronous switching 11 4.4.2 Asynchronous switching 11 4.5 Switch Ports 11 4.5.1 F_Port 12 4.5.2 FL_Port 12 4.5.3 E Port 12 4.6 Fabric Addressing 12 4.7 Class F Service 14 4.8 Relationship Between this Standard and FC-FG 14 5 Switch Ports 15 5.1 General Model 15 5.2 Model elements 15 5.2.1 FC Transports 15 5.2.2 Switch Transport 15 5.2.3 Control Facilities 15 5.2.4 Link Services 15 5.3 F_Port Operation 15 5.3.1 Model 16 5.3.2 Link Behavior 16 5.4 FL_Port Operation 17 5.4.1 Model 17 5.4.2 Link Behavior 18 5.5 E_Port Operation 18 5.5.1 Model 18 5.5.2 inter-Switch Link Behavior 19 5.6 Class F Service 20 5.6.1 Class F Function 20 5.6.2 ClassFRules 20 5.6.3 Class F Frame Format 22 5.6.4 Class F Flow Control 22 6 Switch Fabric Services 23 6.1 Switch Fabric Internal Link Services (SW_ILS) 23 6.1.1 Switch Fabric Internal Link Service Accept (SW_ACC) 23 6.1.2 Switch Fabric Internal Link Service Reject (SW_RJT) 24 6.1.3 Exchange Link Parameters (ELP) 26 6.1.4 Exchange Fabric Parameters (EFP) 30 6.1.5 Announce Address Identifier (AAl) 33 6.1.6 Request Domain_ID (RDI) 34 Copyright International Organization for Standardization nitted without license from IHS Not for Resale 14165-131 @ ISO/IEC:2000(E) Contents Page 6.1.7 Build Fabric (BF) 36 6.1.8 Reconfigure Fabric (RCF) 37 6.1.9 Disconnect Class 1 Connection (DsCN) 38 6.1.10 Detect Queued Class 1 Connection Request Deadlock (LOOPD) 39 7 Fabric Configuration 42 7.1 Summary 42 7.2 Switch Port Initialization 42 7.3 Principal Switch Selection 46 7.4 Address Distribution 49 7.4.1 Domain_ID Distribution by the Principal Switch 49 7.4.2 Domain_ID Requests by the Switches 50 7.5 E_Port and Fabric Isolation 52 Annex A (informative)-Future Projects 53 A.1 Switch Standards in development 53 A.2 Switch Technical Reports in development 53 Annex B (informative) - Examples of Switch Port Initialization 54 B.1 ExamplesOverview 54 B.2 Example 1: two E/F/FL_Port-capable Switch Ports 54 B.3 Example 2: two E/F/FL_Port-capable Switch Ports and one Nx_Port 55 B.4 Example 3: one E/F/FL_Port-capable Port and one E/F_Port-capable Port 56 Annex C (informative) - Fibre Channel Link Switch Command Set for FC-AE 57 C.1 Scope 57 C.2 Technical Description 57 C.2.1 Definition 57 C.2.2 Context 57 C.2.3 Command Set 63 C.2.4 Example Usage of Link Switch Control Interface 75 C.2.4.1 Example Using Only Individual Link Switch Port Commands. 76 C.2.4.2 Example Using N_Port-Level Commands. 77 Ind