HP StorageWorks 8/80 Brocade Access Gateway Administrator's Guide v6.2.0 (53-1 - Page 41

Access Gateway trunking 2 Trunking prevents reassignments of the Port ID (also referred to as the Address Identifier as described in Table 7 on page 26) when N_Ports go offline. You must install the Brocade ISL license on both the Edge switch and the module running in AG mode and you must ensure that both modules running Fabric OS v6.1.0 or later. All ports within a trunk group must be part of the same port group; ports outside of a port group cannot form a trunk group. For more information on Port Groups, see "Port Grouping policy" on page 18. NOTE If a switch already has an ISL Trunking license, no new license is required to use it on AG N_Port masterless trunking; Also, after a trunking license is installed on a switch in AG mode and you change the switch to standard mode, you can keep the same license. Access Gateway does not work on M-EOS or third party switches. To implement F_Port masterless trunking on the Edge switch, you must first configure an F_Port Trunk group and statically assign an Area_ID within the trunk group. Assigning a Trunk Area (TA) to a port or trunk group enables F_Port masterless trunking on that port or trunk group. When a TA is assigned to a port or trunk group, the ports will immediately acquire the TA as the area of its process IDs (PID). And when a TA is removed from a port or trunk group, the port reverts to the default area as its PID. Access Gateway trunking considerations for the Edge switch TABLE 6 Category Access Gateway trunking considerations for the Edge switch Description Area assignment You statically assign the area within the trunk group on the Edge switch. That group is the F_Port masterless trunk. Authentication The static trunk area you assign must fall within the F_Port trunk group starting from port 0 on a Edge switch or blade. The static trunk area you assign must be one of the port's default areas of the trunk group. Authentication occurs only on the F_Port trunk master port and only once per the entire trunk. This behavior is same as E_Port trunk master authentication. Because only one port in the trunk does FLOGI to the switch, and authentication follows FLOGI on that port, only that port displays the authentication details when you issue the portshow command. Management Server Trunk area Note: Switches in Access Gateway mode do not perform authentication. Registered Node ID (RNID), Link Incident Record Registration (LIRR), and (QSA) Query Security Attributes ELSs are not supported on F_Port trunks. The port must be disabled before assigning a Trunk Area on the Edge switch to the port or removing a Trunk Area from a trunk group. You cannot assign a Trunk Area to ports if the standby CP is running a firmware version earlier than Fabric OS v6.2.0. Access Gateway Administrator's Guide 23 53-1001189-01