Dell PowerConnect Brocade 300 Fabric OS Administrator's Guide v7.1.0 - Page 547
ATTENTION, TABLE 80, F_Port masterless trunking considerations, Continued
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F_Port trunking 22 TABLE 80 Category F_Port masterless trunking considerations (Continued) Description DCC Policy Default Area Downgrade DCC policy enforcement for the F_Port trunk is based on the Trunk Area; the FDISC requests to a trunk port are accepted only if the WWN of the attached device is part of the DCC policy against the TA. The PWWN of the FLOGI sent from the AG will be dynamic for the F_Port trunk master. Because you do not know ahead of time what PWWN the AG will use, the PWWN of the FLOGI will not go through DCC policy check on an F_Port trunk master. However, the PWWN of the FDISC will continue to go through DCC policy check. 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 when the entire trunk group has the Trunk Area disabled. You can have trunking on, but you must disable the trunk ports before performing a firmware downgrade. ATTENTION Removing a Trunk Area on ports running traffic is disruptive, because you must disable the port to disable the Trunk Area on the port. Use caution before assigning a Trunk Area if you need to downgrade to a firmware version earlier than Fabric OS v6.2.0. Fastwrite When you assign a Trunk Area to a trunk group, the trunk group cannot have FastWrite enabled on those ports. If a port is FastWrite-enabled, the port cannot be assigned a Trunk Area. FICON 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. HA Sync If you plug in a standby CP with a firmware version earlier than Fabric OS v6.2.0 and a Trunk Area is present on the switch, the CP blades will become out of sync. Long Distance Long distance is not allowed on F_Port trunks, which means that a Trunk Area is not allowed on long-distance ports. You cannot enable long distance on ports that have a Trunk Area assigned to them. Management Server Registered Node ID (RNID), Link Incident Record Registration (LIRR), and Query Security Attribute (QSA) ELSs are not supported on F_Port trunks. NPIV Supported on F_Port master trunk. PID format F_Port trunking is supported only in the CORE PID format. Port mirroring Port mirroring is not supported on Trunk Area ports or on the PID of an F_Port trunk port. Port mirroring is not supported on the Brocade Encryption Switch. Port Swap 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. Port Types Only F_Port trunk ports are allowed on a Trunk Area port. All other port types are persistently disabled. PWWN The entire Trunk Area trunk group shares the same Port WWN within the trunk group. The PWWN is the same across the F_Port trunk that has 0x2f or 0x25 as the first byte of the PWWN. The TA is part of the PWWN in the format listed in Table 81 on page 548. QoS Supported. Routing Routing will route against the F_Port trunk master. Bandwidth information will be modified accordingly as the F_Port trunk forms. Fabric OS Administrator's Guide 547 53-1002745-02
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