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Chapter 24
Configuring FICON
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Configuring FICON Ports
You can perform FICON configurations on a per-port address basis in the Cisco MDS 9000 Family of
switches.
Even if a port is uninstalled, the port address-based configuration is accepted by the Cisco MDS switch.
This configuration is applied to the port when the port becomes installed.
Port Blocking
If you block a port, the port is retained in the operationally down state. If you unblock a port, a port
initialization is attempted. When a port is blocked, data and control traffic are not allowed on that port.
Physical Fibre Channel port blocks will continue to transmit an Off-Line State (OLS) primitive sequence
on a blocked port.
You cannot block or prohibit the CUP port (0XFE).
Caution
If a port is shut down, unblocking that port does not initialize the port.
The shutdown/no shutdown port state is independent of the block/no block port state.
Note
To block or unblock port addresses in a VSAN, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# ficon vsan 2
switch(config-ficon)#
Step 3
switch(config-ficon)# portaddress 1 - 5
switch(config-ficon-portaddr)#
Step 4
switch(config-ficon-portaddr)# block
switch(config-ficon-portaddr)# no block
Port Prohibiting
To prevent implemented ports from talking to each other, you can configure prohibits between two or
more ports. If you prohibit ports, the specified ports are prevented from communicating with each other.
Unimplemented ports are always prohibited.
Note
You cannot prohibit a PortChannel or FCIP interface.
Tip
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Purpose
Enters configuration mode.
Enables FICON on VSAN 2.
Selects port address 1 to 5 for further configuration.
Disables a range of port addresses and retains it in the
operationally down state.
Enables the selected port address and reverts to the
factory default of the port address not being blocked.
Cisco MDS 9000 Family Configuration Guide
Configuring FICON Ports
24-21
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