HP StorageWorks 8/80 Brocade Access Gateway Administrator's Guide v6.2.0 (53-1 - Page 42

2 Access Gateway trunking TABLE 6 Category Access Gateway trunking considerations for the Edge switch Description PWWN The entire Trunk Area trunk group share the same Port WWN within the trunk group. The PWWN is the same across the F_Port trunk that will have 0x2f or 0x25 as the first byte of the PWWN. The TA is part of the PWWN in the format listed in Table 7 on page 26. Downgrade You can have trunking on, but you must disable the trunk ports before performing a firmware downgrade. Upgrade HA Sync Port Types Default Area portCfgTrunkPort , 0 switchCfgTrunk 0 Port Swap Trunk Master Fast Write FICON FC8-48 and FC4-48C blades FC4-32 blade Trunking Note: Removing a Trunk Area on ports running traffic is disruptive. Use caution before assigning a Trunk Area if you need to downgrade to a firmware earlier than Fabric OS v6.1.0. No limitations on upgrade to Fabric Os v6.1.0 if the F_Port is present on switch. Upgrading is not disruptive. If you plug in a standby-CP with a firmware version earlier than Fabric OS v6.1.0 and a Trunk Area is present on the switch, the CP blades will become out of sync. Only F_Port trunk ports are allowed on a Trunk Area port for Fabric OS v6.1.0. All other port types that include F/FL/E/EX are persistently disabled in Fabric OS v6.1.0. Port X is a port that has its Default Area the same as its Trunk Area. The only time you can remove port X from the trunk group is if the entire trunk group has the Trunk Area disabled. portCfgTrunkPort , 0 will fail if a Trunk Area is enabled on a port. The port must be Trunk Area disabled first. switchCfgTrunk 0 will fail if a port has TA enabled. All ports on a switch must be TA disabled first. When you assign a Trunk Area to a trunk group, the Trunk Area cannot be port swapped; if a port is swapped, then you cannot assign a Trunk Area to that port. No more than one trunk master in a trunk group. The second trunk master will be persistently disabled with reason "Area has been acquired". When you assign a Trunk Area to a trunk group, the trunk group cannot have fast write enabled on those ports; if a port is fast write enabled, the port cannot be assigned a Trunk Area. FICON is not supported on F_port trunk ports. However, FICON can still run on ports that are not F_Port trunked within the same switch. F_Port masterless trunking is supported on ports 16-43 on the FC8-48 blade. On the FC8-48 and FC4-48C blades F_Port trunking supported only on ports 0 - 15. If an FC4-32 (Electron) blade has the Trunk Area enabled on ports 16 - 31 and the blade is swapped with an FC4-48C and FC8-48 blade, the Trunk Area ports will be persistently disabled. You can run the porttrunkarea command to assign a Trunk Area on those ports. You must first enable Trunking on the port before the port can have a Trunk Area assigned to it. 24 Access Gateway Administrator's Guide 53-1001189-01