Brocade Fabric OS Administrators Guide (Supporting Fabric OS v7.3.0) User Manual
Page 523
F_Port masterless trunking considerations (Continued)
TABLE 91
Category
Description
Default Area
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.
Downgrade
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
N_Port ID virtualization (NPIV) is supported on the 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
QoS
QoS is supported.
Routing
Routing will route against the F_Port trunk master. Bandwidth information will be modified
accordingly as the F_Port trunk forms.
Managing Trunking Connections
Fabric OS Administrators Guide
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