HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual page 378

Table 81 F_Port masterless trunking considerations (continued)
Category
portCfgTrunkPort <port>, 0
switchCfgTrunk 0
Port Swap
Trunk Master
Fastwrite
FICON
FC8-48 and FC4-48C blades
FC4-32 blade
Access Gateway mode
Trunking
PID format
Long Distance
Port mirroring
configdownload
ICL Port
AD
378 Administering ISL trunking
Description
The portCfgTrunkPort <port>, 0 command fails if a
Trunk Area is enabled on a port. The port Trunk Area must be
disabled first.
The switchCfgTrunk 0 command 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, you
cannot assign a Trunk Area to that port.
No more than one trunk master in a trunk group. The second
trunk master is persistently disabled with reason "Area has
been acquired".
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 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.
Does not support F_Port trunking. It only supports N_Port
trunking in AG mode.
You must first enable Trunking on the port before the port can
have a Trunk Area assigned to it.
F_Port masterless trunking is only supported in the CORE PID
format.
Long distance is not allowed on F_Port trunks, which means 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.
Port mirroring is not supported on Trunk Area ports or on the
PID of an F_Port trunk port.
If you issue the configDownload command for a port
configuration that is not compatible with F_Port trunking, and
the port is Trunk Area enabled, the port will be persistently
disabled.
Note: Configurations that are not compatible with F_Port
trunking are long distance, port mirroring, non-CORE_PID,
and fastwrite.
F_Port trunks are not allowed on ICL Ports. The
portTrunkArea command does not allow it.
You cannot create a Trunk Area on ports with different Admin
Domains. You cannot create a Trunk Area in AD255.