HP StorageWorks 1606 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 479

F_Port masterless trunking 19 F_Port trunking considerations for Virtual Fabrics Following are the F_Port trunking considerations for virtual fabrics: • If a port is enabled for F_Port trunking, then you must disable the configuration before you can move a port from the logical switch. • If the user bound area for a port is configured using the portAddress command, then the port cannot be configured as an F_Port trunk port. You must explicitly remove the user bound area before enabling F_Port trunking. • If you swap a port using the portSwap command, then you must undo the port swap before enabling F_Port trunking. • The Port WWN format in a Virtual Fabric is 2z:zz:xx:xx:xx:xx:xx:xx. The z:zz is the logical port number, for example, the logical port 450 will be 1:c2. The xx:xx:xx:xx:xx:xx is based on the logical fabric's WWN, for example, if the logical fabric's WWN is 10:00:00:05:1e:39:fa:f3, and logical port number is 450, then the Port WWN of the F_Port trunk will be 21:c2: 00:05:1e:39:fa:f3. • F_Port trunks are not allowed on the base switch. NOTE A base switch is a logical switch that is used to communicate among different logical switches. • F_Port trunks enabled on Fabric OS v6.2.0 are non-disruptive to Fabric v6.3.0. • If F_Port trunking is enabled on some ports in the default switch, and you disable the Virtual Fabric, all of the F_Port trunking information is lost. • The ports in a trunk group can be partitioned into different logical switches, therefore all of the ports in an F_Port trunk must belong to a single trunk group of ports on the platform and must also belong to the same logical switch. F_Port masterless trunking On edge switches, the masterless trunking feature is called F_Port masterless trunking because it trunks F_Ports on the switches running in Access Gateway (AG) mode. If the switch is in AG mode, the trunk ports must be F_Ports that are connected to N_Ports. The ISL trunking feature supports N_Port connections for edge switches running Fabric OS 6.2.0 or later. This feature keeps F_Ports from becoming disabled when they are mapped to an N_Port on a switch in Access Gateway mode. With F_Port trunking, any link within a trunk can go offline or become disabled, but the trunk remains fully functional and there are no reconfiguration requirements. The following table describes the PWWN format for F_Port and N_Port trunk ports. TABLE 84 NAA = 2 NAA = 2 PWWN format for F_Port and N_Port trunk ports 2f:xx:nn:nn:nn:nn:nn:nn (1) Port WWNs for: switch's Fx_Ports. 25:xx:nn:nn:nn:nn:nn:nn (1) Port WWNs for: switch's FX_Ports The valid range of xx is [0 - FF], for maximum of 256. The valid range of xx is [0 - FF], for maximum of 256. Fabric OS Administrator's Guide 437 53-1001336-01