Extension Design and Best Practices Design Guide Broadcom Extension-Design-DG100 November 20, 2020 Design Guide Extension Design and Best Practices Copyright © 2020 Broadcom. All Rights Reserved. Broadcom, the pulse logo, Brocade, and the stylized B logo are among the trademarks of Broadcom in the United States, the EU, and/or other countries. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. Broadcom reserves the right to make changes without further notice to any products or data herein to improve reliability, function, or design. Information furnished by Broadcom is believed to be accurate and reliable. However, Broadcom does not assume any liability arising out of the application or use of this information, nor the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. 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Broadcom Extension-Design-DG100 2 Design Guide Extension Design and Best Practices Table of Contents Chapter 1: Overview and Purpose .................................................................................................... 5 Chapter 2: Extension Common Principles ....................................................................................... 5 2.1 IP Network..................................................................................................................................................................5 2.2 WAN Evaluation and Connectivity Validation ........................................................................................................5 2.2.1 WAN Test Tool (Wtool) .....................................................................................................................................6 2.2.2 Ping...................................................................................................................................................................6 2.2.3 Traceroute.........................................................................................................................................................6 2.2.4 Portshow fciptunnel...........................................................................................................................................6 2.3 Ethernet RJ-45, SFP, SFP+.....................................................................................................................................11 2.4 Failover and Failback (Metrics and Groups) ........................................................................................................12 2.5 Keepalive Timeout Value........................................................................................................................................13 2.6 Brocade Extension Trunking .................................................................................................................................13 2.7 IPsec.........................................................................................................................................................................15 2.8 Bandwidth................................................................................................................................................................15 2.9 Adaptive Rate Limiting ...........................................................................................................................................17 2.10 QoS.........................................................................................................................................................................18 2.10.1 Protocol Distribution......................................................................................................................................18 2.10.2 Priority...........................................................................................................................................................19 2.10.3 DSCP ............................................................................................................................................................19 2.10.4 802.1P (Class of Service) .............................................................................................................................20 Chapter 3: WAN Side ........................................................................................................................ 20 3.1 LLDP.........................................................................................................................................................................20 3.2 VE_Ports ..................................................................................................................................................................21 3.3 PerPriority-TCP-QoS...............................................................................................................................................21 Chapter 4: What Is Not Supported .................................................................................................. 22 Chapter 5: FCIP ................................................................................................................................. 22 5.1 Compression ...........................................................................................................................................................22 5.1.1 Fast-Deflate ....................................................................................................................................................22 5.1.2 Deflate.............................................................................................................................................................22 5.1.3 Aggressive-Deflate..........................................................................................................................................23 5.2 Protocol Optimization.............................................................................................................................................23 5.2.1 FastWrite.........................................................................................................................................................23 5.2.2 OSTP ..............................................................................................................................................................23 5.3 Virtual Fabrics .........................................................................................................................................................23 5.4 Ethernet Interface Sharing .....................................................................................................................................24 5.5 FCIP Architectures..................................................................................................................................................24 5.6 Extension with FCR ................................................................................................................................................27 Broadcom Extension-Design-DG100 3 Design Guide Extension Design and Best Practices Chapter 6: IP Extension ................................................................................................................... 28 6.1 Use Cases ................................................................................................................................................................28 6.2 VE_Ports ..................................................................................................................................................................28 6.3 LAN Side ..................................................................................................................................................................29 6.3.1 IP Extension Gateway.....................................................................................................................................29 6.3.2 GE Interfaces ..................................................................................................................................................30 6.3.3 Virtual Fabrics, Logical Switches, and Ethernet Interface Sharing .................................................................30 6.3.4 Data-Center LAN and Port Channels..............................................................................................................31 6.4 Compression ...........................................................................................................................................................32 6.5 Traffic Control Lists ................................................................................................................................................32 6.6 IP Extension Architectures ....................................................................................................................................33 6.6.1 Two-Box Solutions