Port Indexes - HP Cisco MDS 9216 - Fabric Switch Configuration Manual

About Combining Generation 1 and Generation 2 Switching Modules
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
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Port Indexes

Cisco MDS 9000 switches allocate index identifiers for the ports on the modules. These port indexes
cannot be configured. You can combine Generation 1 and Generation 2 switching modules, with either
Supervisor-1 modules or Supervisor-2 modules. However, combining switching modules and supervisor
modules has the following port index limitations:
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Note On a switch with the maximum limit of 252 port index maximum limit, any new module that exceeds the
limit when installed does not power up.
Generation 1 switching modules have specific numbering requirements. If these requirements are not
met, the module does not power up. The port index numbering requirements include the following:
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If the switch has Supervisor-1 modules, the block of 32 contiguous port indexes must begin on the slot
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boundary. The slot boundary for slot 1 is 0, for slot 2 is 32, and so on. For Supervisor-2 modules, the
contiguous block can start anywhere.
Table 22-13
Generation 1 Module
16-port 2-Gbps Fibre Channel module
32-port 2-Gbps Fibre Channel module
8-port Gigabit Ethernet IP Storage Services module
4-port Gigabit Ethernet IP Storage Services module
Cisco MDS 9000 Family CLI Configuration Guide
22-16
Supervisor-2 modules support a maximum of 1020 port indexes when all switching modules in the
chassis are Generation 2.
Supervisor-2 modules only support a maximum of 252 port indexes when only Generation 1
switching modules, or a combination of Generation 1 and Generation 2 switching modules, are
installed in the chassis.
Supervisor-1 modules only support a maximum of 252 port indexes, regardless of the type of
switching modules.
Supervisor-2 modules support a maximum of 1020 port indexes when all switching modules in the
chassis are Generation 2.
Supervisor-2 modules only support a maximum of 252 port indexes when only Generation 1
switching modules, or a combination of Generation 1 and Generation 2 switching modules, are
installed in the chassis.
If port indexes in the range of 256 to 1020 are assign to operational ports, Generation 1 switching
modules do not power up.
A block of contiguous port indexes is available. If such a block of port indexes is not available,
Generation 1 modules do not power up.
Generation 1 modules.
Port Index Requirements for Generation 1 Modules
Chapter 22 Configuring Generation 2 Switches and Modules
Table 22-13 shows the port index requirements for the
Number of Port Indexes Required
Supervisor-1 Module
16
32
32
32
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Supervisor-2 Module
16
32
32
16