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IBM/Cisco Multiprotocol Routing: an Introduction and Implementation

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Front cover IBM/Cisco Multiprotocol Routing: An Introduction and Implementation Learn about the IBM/Cisco multiprotocol products and solutions Understand how to implement FCIP, VSANs, and IVR Discover how to implement iSCSI Jon Tate Michael Engelbrecht Jacek Koman ibm.com/redbooks International Technical Support Organization IBM/Cisco Multiprotocol Routing: An Introduction and Implementation March 2009 SG24-7543-01 Note: Before using this information and the product it supports, read the information in “Notices” on page ix. Second Edition (March 2009) This edition applies to Version 4.1.n of the Cisco Fabric Manager and Device Manager, and NX-OS operating system. © Copyright International Business Machines Corporation 2009. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . ix Trademarks . x Preface . xi The team that wrote this book . xi Become a published author . xiii Comments welcome. xiv Summary of changes . xv December 2008, Second Edition . xv Chapter 1. SAN routing introduction . 1 1.1 SAN routing definitions . 3 1.1.1 Fibre Channel . 3 1.1.2 Fibre Channel switching . 4 1.1.3 Fibre Channel routing . 4 1.1.4 Tunneling . 4 1.1.5 Routers and gateways . 5 1.1.6 Fibre Channel routing between physical or virtual fabrics. 5 1.2 Routed gateway protocols. 5 1.2.1 FCIP . 5 1.2.2 iSCSI . 8 1.3 Routing issues. 10 1.3.1 Frame size . 10 1.3.2 TCP congestion control. 11 1.3.3 Round-trip delay . 11 1.3.4 Write acceleration . 14 1.3.5 Tape acceleration . 15 1.4 Multiprotocol scenarios . 16 1.4.1 Zoning and VSANs . 16 1.4.2 The need to share devices across fabrics. 18 1.4.3 Connecting a remote mirrored site over IP . 18 1.4.4 Connecting hosts using iSCSI. 18 Chapter 2. Cisco family routing products . 21 2.1 Overview of the Cisco MDS Family. 22 2.1.1 Introduction to VSAN. 23 2.2 Hardware and software . 23 2.2.1 MDS 9020 Fabric Switch (non-modular) . 23 © Copyright IBM Corp. 2009. All rights reserved. iii 2.2.2 Cisco MDS 9120 and 9140 Multilayer switches . 24 2.2.3 MDS 9124 Multilayer Fabric Switch (non-modular). 26 2.2.4 MDS 9134 Multilayer Fabric Switch (non-modular). 26 2.2.5 MDS 9216A Multilayer Switch. 27 2.2.6 Cisco MDS 9216i Multilayer Switch . 28 2.2.7 MDS 9222i Multiservice Modular Switch. 29 2.2.8 MDS 9506 Multilayer Director . 30 2.2.9 MDS 9509 Multilayer Director . 31 2.2.10 MDS 9513 Multilayer Director . 32 2.2.11 Supervisor-2 modules . 36 2.2.12 Optional modules . 38 2.3 Generation 2 switches and modules . 49 2.3.1 Port groups . 50 2.3.2 Combining Generation 1, 2, and 3 switching modules . 53 2.4 Advanced management . 55 2.4.1 Fabric management . 56 2.4.2 Optional licensed feature packages . 61 2.5 Key features . 65 2.5.1 Protocol support . 65 2.5.2 Supported port types. 66 2.5.3 VSAN technology in the MDS 9000 Family. 72 2.5.4 Inter-VSAN Routing. 77 2.5.5 PortChanneling . 79 2.5.6 Trunking . 80 2.5.7 Quality of service. 81 2.5.8 Fibre Channel Congestion Control . 82 2.5.9 Switch port analyzer . 84 2.6 Interoperability. 87 2.6.1 Switch interoperability modes . 87 2.6.2 Interoperability matrix . 89 Chapter 3. Cisco routing features and benefits . 91 3.1 SAN extension with FCIP . 92 3.1.1 Compression . 93 3.1.2 Using Inter-VSAN Routing with FCIP . 94 3.1.3 Using FCIP write acceleration. 94 3.1.4 Using FCIP tape acceleration with FCIP. 96 3.2 Low-cost connection with iSCSI . 96 3.3 Isolation and interoperability using IVR . 98 3.3.1 Separating production from development . 98 3.3.2 Separating corporate subsidiaries. 99 3.3.3 Isolation of multivendor switches and modes . 99 3.4 Managing scalability with IVR . 100 iv IBM/Cisco Multiprotocol Routing: An Introduction and Implementation 3.5 Storage migration using IVR . 101 Chapter 4. Cisco routing best practices . 103 4.1 To route or not to route . 104 4.2 Piloting new technology. 105 4.3 FCIP SAN extension suggested reading. 105 4.4 Interoperability. 106 4.5 Designing for availability . 107 4.5.1 Fibre Channel router hardware . 107 4.5.2 Nondisruptive software upgrade . 107 4.5.3 Inter-switch links . 108 4.5.4 VSAN and IVR . 108 4.5.5 Backup . ..
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