Fabric OS Administrator’s Guide 475
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EX_Port frame trunking configuration 21
Table 94 lists the platforms that support FC-FC routing, indicates whether masterless EX_Port
frame trunking is supported and, if supported, whether Virtual Fabrics must be enabled or
disabled.

Supported configurations and platforms

The EX_Port trunking is an FCR software feature and requires that you have a trunking license
installed on the FC router and on the edge fabric connected to the other side of the trunked
EX_Ports. EX_Port trunking is supported only with Brocade edge fabrics. You can use EX_Port
frame trunking in the following configurations and cases:
For ports with speeds of 2 Gbps up to a maximum speed of 8 Gbps and trunking over long
distance.
In the edge fabric, when the FC router is connected to a switch that supports eight ports from
the trunkable group.
When the FC router is connected to an edge fabric using a mix of trunked and non-trunked
EX_Ports. All will share the same front domain.
In edge-to-edge, backbone-to-edge, and dual backbone configurations.
Masterless EX_Port trunking has additional configuration requirements. See “Masterless EX_Port
trunking” on page 474 for these additional requirements.
NOTE
QoS and EX_Port trunking can co-exist; however, if some ports in the trunk group have QoS enabled
and some have QoS disabled, then two trunk groups will form: one with QoS enabled and one with
QoS disabled.
TABLE 94 Supported platforms and VF mode for masterless EX_Port trunking
Supported platforms for FCR Masterless EX_Port trunking supported? VF mode required for masterless EX_Port trunking
Brocade DCX and DCX-4S:
FC8-16
FC8-32
FC8-48
FC8-64
FS8-18
FX8-24
FR4-18i
yes
yes
yes
yes
yes
yes
no
enabled
enabled
enabled
enabled
enabled
enabled
n/a
Brocade 5100 yes enabled or disabled
Brocade 5300 yes enabled or disabled
Brocade VA-40FC yes enabled or disabled
Brocade Encryption Switch yes enabled or disabled
Brocade 7500 no n/a
Brocade 7800 no n/a
Brocade 48000:
FR4-18i no n/a