Restrictions on brocade backbones – Brocade Fabric OS Administrators Guide (Supporting Fabric OS v7.3.0) User Manual
Page 282
Restrictions on Brocade Backbones
The following restrictions apply to Brocade Backbones:
• EX_Ports and VEX_Ports can be in only the base switch.
• ICL ports cannot be in a logical switch that is using XISLs.
• All of the user ports in an ICL cable must be in the same logical switch. Distributing the user ports
within the same cable across multiple logical switches is not supported.
• ICL ports that are configured as EX_Ports can be in only the base switch.
• The default logical switch cannot use XISLs.
• The default logical switch cannot be designated as the base switch.
• In Fabric OS v7.0.0 and later, VE_Ports on the FX8-24 blade are supported on a logical switch that
is using an XISL, and on the base switch as an XISL.
NOTE
For the FX8-24 blade, if XISL use is enabled it is not recommended that you configure VE_Ports on
both the logical switch and the base switch, because FCIP tunnels support only two hops maximum.
Virtual Fabrics interaction with other Fabric OS features
The following table lists some Fabric OS features and considerations that apply when using Virtual
Fabrics.
Virtual Fabrics interaction with Fabric OS features
TABLE 60
Fabric OS feature
Virtual Fabrics interaction
Access Gateway
Virtual Fabrics is not supported on a switch if AG mode is enabled.
Admin Domains
Virtual Fabrics and Admin Domains are mutually exclusive and are not supported at the
same time on a switch. To use Admin Domains, you must first disable Virtual Fabrics; to
use Virtual Fabrics, you must first delete all Admin Domains.
Refer to
Deleting all user-defined Admin Domains non-disruptively
on page 478 for
information on deleting Admin Domains without disrupting device-to-device
communication.
Configuration upload
and download
Virtual Fabrics uses a configuration file that is different from the configuration file used to
download system configuration parameters. Refer to
on page 255 for more information about how Virtual Fabrics affects
the configuration file.
Encryption
Encryption functionality using the FS8-18 blade is available only on the default logical
switch.
FC-FC Routing Service All EX_Ports must reside in a base switch.
You cannot attach EX_Ports to a logical switch that has XISL use enabled. You must
use ISLs to connect the logical switches in an edge fabric.
Refer to
Using FC-FC Routing to Connect Fabrics
on page 533 for more information
about Virtual Fabrics and FC-FC routing.
13
EX_Ports on an ICL are supported only in the Brocade DCX 8510 Backbone family.
Restrictions on Brocade Backbones
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Fabric OS Administrators Guide
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