HP 1606 HP StorageWorks Fabric OS 6.3.2b Release Notes (5697-0777, November 20 - Page 23

• Switching modes between 1G/10G/Dual • Moving VE/GE port between logical switches • The DC SAN Director Multiprotocol Extension Blade supports three operating modes: • Mode 1: 10 1-GbE ports mode (default) • Mode 2: 10 1-GbE ports and 1 10-GbE port • Mode 3: 2 10-GbE ports Modes 2 and 3 require the slot-based 10-GbE FCIP license. • ARL (Adaptive Rate Limiting) is not supported on 10-Gb tunnels. • IPv6, DiffServ, and In-band Management are not supported on the 1606 Extension SAN Switch or DC SAN Director Multiprotocol Extension Blade . • IPSec is not supported on the DC SAN Director Multiprotocol Extension Blade. • Fabric OS 6.3 supports only up to four 1-Gb circuits per VE/FCIP tunnel for the 1-Gb interfaces. A VE/FCIP tunnel created over 10-Gb interfaces will be limited to 10 circuits created using IPIFs on the same 10-GbE port (and no more than 1 Gb per circuit). • As a recommended best practice, the VE tunnel should not be oversubscribed (for example, 8-Gb FC traffic over 500 Mb/s tunnel). General guidelines are 2:1 subscription without compression and 4:1 with compression. • Nondisruptive firmware activation on Fabric OS 6.3 will disrupt I/O traffic on FCIP links. • FCR (VEX) is not supported on the DC SAN Director Multiprotocol Extension Blade but is supported on the 1606 Extension SAN Switch. • Differences between the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension Blade platforms and previous-generation 7500/FR4-18i platforms include: • On the 1606 Extension SAN Switch, the GigE port does not directly correlate to a VE_Port. • On the DC SAN Director Multiprotocol Extension Blade, GigE ports 0-9 or 10-GbE port 1 (xge1) correspond to VE_Ports 12-21, and 10-GbE port 0 (xge0) corresponds to VE_Ports 2231. • The CLI syntax for the 1606 Extension SAN Switch/DC SAN Director Multiprotocol Extension Blade varies from the 7500/FR4-18i. See the Brocade Fabric OS Command Reference document for Fabric OS 6.3 for details. • Both ends of a tunnel must be identically configured for the Compression, FastWrite, and Tape Pipeline options. If a mismatch exists, the tunnel will not be established and the TCP virtual connections will be removed. • Under traffic isolation (TI) zone configurations with failover enabled, non-TI zone traffic will use the dedicated path if no other E or VE paths through the fabric exist, or if the nondedicated paths are not the shortest paths. (A higher bandwidth tunnel with multiple circuits will become the shortest path compared to a single tunnel.) • A VE/VEX tunnel and E/EX FC port cannot connect to the same domain at the same time. • The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches on both sides of a link. • Latency measurements supported on FCIP tunnels (tested limit under Fabric OS 6.3.2): • 1 GbE with 200 ms round-trip time and 1% loss • 10 GbE with 50 ms round-trip time and 0.1% loss • The 1606 Extension SAN Switch supports optical and copper media types on GE0 and GE1 interfaces. Copper media is the default on GE0/GE1 ports and does not support autosense functions. • Inserting a 4 Gb SFP in GE ports of an HP StorageWorks 1606 Extension SAN Switch or DC SAN Director Multiprotocol Extension Blade, can occasionally return one of the following messages: • No_Light or Unknown for GE ports in switchshow output. HP StorageWorks Fabric OS 6.3.2b Release Notes 23