Default FICON Port Numbering Scheme
Default FICON port numbers are assigned by the Cisco MDS NX-OS software based on the module and
the slot in the chassis. The first port in a switch always starts with a zero (0).
Figure 25-1 Default FICON Port Number in Numbering on the Cisco MDS 9000 Family Switch
The default 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. Thirty-two (32) port numbers are assigned to each slot on all
Cisco MDS 9000 Family switches except for the Cisco MDS 9513 Director, which has 16 port numbers
assigned for each slot. These default numbers are assigned regardless of the module’s physical presence
in the chassis, the port status (up or down), or the number of ports on the module (4, 12, 16, 24, or 48).
If a module has fewer ports than the number of port numbers assigned to the slot, then the excess port
numbers are unused. If a module has more ports than the number of port numbers assigned to the slot,
the excess ports cannot be used for FICON traffic unless you manually assign the port numbers.
Note Follow the steps in "Assigning FICON Port Numbers to Slots" topic to make use of excess ports by
manually assigning more port numbers to the slots. Before doing this, however, we recommend that you
review the default port number assignments for Cisco MDS 9000 switches shown in Table 25-3
Table 25-1, and that you read the following sections to gain a complete understanding of FICON port
numbering: "About the Reserved FICON Port Numbering Scheme" topic, "FICON Port Numbering
Guidelines" topic, and "Assigning FICON Port Numbers to Slots" topic.
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.
Table 25-1 lists the default port number assignment for the Cisco MDS 9000 Family of switches and
directors.
Table 25-1 Default FICON Port Numbering in the Cisco MDS 9000 Family
|
Product
|
Slot
Number
|
Implemented Port Allocation
|
Unimplemented
Ports
|
Notes
|
|
To Ports
|
To PortChannel/FCIP
|
|
Cisco MDS
9200 Series
|
Slot 1
|
0 through 31
|
64 through 89
|
90 through 253
and port 255
|
Similar to a switching module.
|
|
Slot 2
|
32 through 63
|
|
Cisco MDS
9222i Series
|
Slot 1
|
0 through 31
|
64 through 89
|
90 through 253
and port 255
|
The first 4, 12, 16, or 24 port
numbers in a 4-port, 12-port,
16-port, or 24-port module are
used and the rest remain
unused. Extra 16 ports on
48-port modules are not
allocated numbers.
|
|
Slot 2
|
32 through 63
|
|
Cisco MDS
9506 Director
|
Slot 1
|
0 through 31
|
128 through 153
|
154 through 253
and port 255
|
Supervisor modules are not
allocated port numbers.
|
|
Slot 2
|
32 through 63
|
|
Slot 3
|
64 through 95
|
|
Slot 4
|
96 through 127
|
|
Slot 5
|
None
|
|
Slot 6
|
None
|
|
Cisco MDS
9134 Director
|
Slot 1
|
0 through 33
|
34 through 59
|
60 through 253
and port 255
|
|
Cisco MDS
9509 Director
|
Slot 1
|
0 through 31
|
224 through 249
|
250 through 253
and port 255
|
The first 4, 12, 16, or 24 port
numbers in a 4-port, 12-port,
16-port, or 24-port module are
used and the rest remain
unused. Extra 16 ports on
48-port modules are not
allocated port numbers.
|
|
Slot 2
|
32 through 63
|
|
Slot 3
|
64 through 95
|
|
Slot 4
|
96 through 127
|
|
Slot 5
|
None
|
Supervisor modules are not
allocated port numbers.
|
|
Slot 6
|
None
|
|
Slot 7
|
128 through 159
|
The first 4, 12, 16, or 24 port
numbers are used for a 4-port,
12-port,16-port, or 24-port
module and the rest remain
unused. Extra 16 ports on
48-port modules are not
allocated port numbers.
|
|
Slot 8
|
160 through 191
|
|
Slot 9
|
192 through 223
|
|
Cisco MDS
9513 Director
|
Slot 1
|
0 through 15
|
224 through 249
|
250 through 253
and port 255
|
The first 4, 12 or 16 port
numbers are used for a 4-port,
12-port or 16-port module and
the rest remain unused. Extra
ports on 24-port, 32-port, and
48-port modules are not
allocated port numbers.
|
|
Slot 2
|
16 through 31
|
|
Slot 3
|
32 through 47
|
|
Slot 4
|
48 through 63
|
|
Slot 5
|
64 through 79
|
|
Slot 6
|
80 through 95
|
|
Slot 7
|
None
|
Supervisor modules are not
allocated port numbers.
|
|
Slot 8
|
None
|
|
Slot 9
|
96 through 111
|
The first 4 or 12 port numbers
are used for a 4-port or 12-port
module and the rest remain
unused. Extra ports on 24-port,
32-port, and 48-port modules
are not allocated port numbers.
|
|
Slot 10
|
112 through 127
|
|
Slot 11
|
128 through 143
|
|
Slot 12
|
144 through 159
|
|
Slot 13
|
160 through 175
|
|
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