HP StorageWorks 2/16V Brocade Access Gateway Administrator's Guide - Supportin - Page 16

1 Port mapping Port mapping Brocade Access Gateway uses mapping-that is, pre-provisioned routes-to direct traffic from the hosts to the fabric. When you first enable Access Gateway mode, the F_Ports are mapped to a set of predefined N_Ports, see Appendix A, "Default Port Mapping". After the initial setup, you can manually change the mapping if required. Figure 1-3 shows a mapping with eight F_Ports evenly mapped to four N_Ports on Brocade Access Gateway. The N_Ports connect to the same fabric via different edge switches. This example is also used to explain mapping, failover, and failback polices. Hosts Host_1 Host_2 Host_3 Host_4 Host_5 Host_6 Access Gateway F_1 N_1 F_2 N_2 F_3 F_4 N_3 F_5 N_4 F_6 Edge Switch (Switch_A) F_A1 NPIV enabled F_A2 NPIV enabled Edge Switch (Switch_B) F_B1 NPIV enabled F_B2 NPIV enabled Fabric Host_7 F_7 Host_8 F_8 Figure 1-3 Example F_Port to N_Port mapping The following table describes the mapping and fabric connection shown in Figure 1-3: Table 1-2 Example port mapping Access Gateway Fabric N_Port F_Port Edge switch F_Port N_1 F_1, F_2 Switch_A F_A1 N_2 F_3, F_4 Switch_A F_A2 N_3 F_5, F_6 Switch_B F_B1 N_4 F_7, F_8 Switch_B F_B2 1-4 Access Gateway Administrator's Guide Publication Number: 53-1000430-01