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Chapter 24
Configuring IP Storage
The IPS module supports FCIP links that originate from a B port SAN extender device by implementing
the B access ISL protocol on a Gigabit Ethernet interface. Internally, the corresponding virtual B port
connects to an virtual E port which completes the end-to-end E port connectivity requirement.
Figure 24-12
FC
The B port feature in the IPS module allows remote B port SAN extenders to communicate directly with
a Cisco MDS 9000 Family switch, therefore eliminating the need for local bridge devices.
Configuring B Ports
When a FCIP peer is a SAN extender device that only supports Fibre Channel B ports, you need to enable
the B port mode for the FCIP link. When a B port is enabled, the E port functionality is also enabled and
they coexist. If the B port is disabled, the E port functionality remains enabled.
E Port Configurations
All configuration commands that apply to E ports, also apply to FCIP interfaces. The following features
are also available FCIP interfaces:
•
OL-7753-01
FCIP Link Terminating in a B Port Mode
Switch A
FC
F
F
E
FC
Switch B
FC bridge
B
VE
B
access
FC
E
E
FC
FCIP interface
VSANs
–
FCIP interfaces can be a member of any VSAN.
Trunk mode
–
Trunk mode can be configured.
–
Trunk allowed VSANs can be configured
–
IP
FCIP link
GE
B access ISL
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
Configuring FCIP
7200 router
Fibre Channel
port adapter (1G)
B
B
FC
access
Switch C
F
FC
E
E
FC
ISL
FC
24-19
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