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22-6
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
Chapter 22 FICON Configuration
About FICON
FICON Port Numbering
With reference to the FICON feature, ports in Cisco MDS switches are identified by a statically defined
8-bit value known as the port number. Port numbers are assigned based on the module and the slot in the
chassis. Port numbers cannot be changed and the first port in a switch always starts with a 0 (see
Figure 22-3).
Figure 22-3 Port Number in the Cisco MDS 9000 Family
The FICON port number is assigned based on the front panel location of the port and is specific to the
slot in which the module resides. Even if the module is a 16-port module, 32-port numbers are assigned
to that module—regardless of the module type (16-port or 32-port), the module’s physical presence in
the chassis, or the port status (up or down).
Note Only Fibre Channel, PortChannel, and FCIP ports are mapped to FICON port numbers. Other types of
interfaces do not have a corresponding port number.
0 1 2 3 4 5 6 7
8 9 10 11
11 13 14 15
Module 1 16-Port module
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
Module 2 16-Port module
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