HP StorageWorks 2/24 FW 07.00.00/HAFM SW 08.06.00 McDATA Products in a SAN Env - Page 162

Implementing SAN Internetworking Solutions 4 mSAN Routing An mSAN consists of one or two SAN routers that interconnect up to six Fibre Channel fabrics. These fabrics are typically dispersed within a data center or metropolitan campus. If two SAN routers are used, they are connected with multiple (one to four) Gigabit Ethernet (GbE) bandwidth IRLs. These GbE connections (using mFCP as the transport protocol) are characterized by low latency, high bandwidth, and negligible packet loss. mSAN Routing Domain A SAN router reserves a routing domain with proxy Domain_ID 30 (hexadecimal 7E) to enable routing between mSAN fabrics. This routing domain is visible to all directors and switches in each routerattached fabric and appears as a virtual switch (with Domain_ID 30) to SAN management applications. Table 4-1 summarizes the mSAN routing domain. NOTE: A reserved routing domain with proxy Domain_ID 31 (hexadecimal 7F) enables iSAN routing. Table 4-1 mSAN Routing Domain Domain_ID 30 (Hexadecimal 7E) Area_ID 1 - 4 5 - 8 9 - 12 13 - 16 17 - 20 21 - 24 25 - 28 29 - 32 33 - 36 37 - 40 41 - 44 45 - 48 Fabric_ID 1 2 3 4 5 6 7 8 9 10 11 12 4-18 McDATA Products in a SAN Environment - Planning Manual