Limitations And Restrictions Of Virtual Fabrics - Brocade Communications Systems 1606 Administrator's Manual

10

Limitations and restrictions of Virtual Fabrics

TABLE 44
Fabric OS feature
FC-FC Routing Service
FICON
Interoperability mode
Licensing
Performance
monitoring
Port mirroring
QoS
Traffic Isolation

Limitations and restrictions of Virtual Fabrics

The maximum number of logical switches per chassis varies depending on the switch model.
Table 45
default logical switch) supported on each.
TABLE 45
Platform
Brocade DCX
Brocade DCX-4S
Brocade 5300
Brocade 5100
Following are restrictions on the default logical switch in the Brocade DCX and DCX-4S:
•
•
208
Virtual Fabrics interaction with Fabric OS features (Continued)
Virtual Fabrics interaction
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.
Only 8-Gbps ports are allowed to be used as FC router EX_Ports, with the exception of
VEX_Ports on the FR4-18i blade.
See Chapter 21, "Using the FC-FC Routing Service,"
Fabrics and FC-FC routing.
Up to two logical switches per chassis can run FICON Management Server (CUP), but the
FICON logical switch must use ISLs and not XISLs.
In interoperability modes 2 and 3, you cannot use XISL in the logical fabric. The logical
switches must be connected only with ISLs.
Licenses are applicable for all logical switches in a chassis.
Performance monitors are supported in a limited number of logical switches, depending
on the platform type. See
Monitoring,"
are enabled.
Port mirroring is not supported when Virtual Fabrics is enabled.
QoS VCs are maintained across the base fabric. See
Behavior,"
Virtual Fabrics.
Traffic Isolation zones with failover disabled are not supported in logical fabrics. See
Chapter 18, "Optimizing Fabric Behavior,"
Zones with Virtual Fabrics.
lists the supported platforms and the maximum number of logical switches (including the
Maximum number of logical switches per chassis
Maximum number of logical switches
8
8
4
3
The default logical switch cannot use extended ISLs (XISLs).
The default logical switch cannot be a base switch.
Chapter 17, "Administering Advanced Performance
for more information about performance monitoring when Virtual Fabrics
for more information about using the Adaptive Networking features with
for more information about Virtual
Chapter 18, "Optimizing Fabric
for additional information about using TI
Fabric OS Administrator's Guide
53-1001336-01