Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual page 499

Chapter 22 Configuring Generation 2 and Generation 3 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
Supervisor-2 modules support a maximum of 1020 port indexes when all switching modules in the
•
chassis are Generation 2 or Generation 3.
• Supervisor-2 modules only support a maximum of 252 port indexes when only Generation 1
switching modules, or a combination of Generation 1, Generation 2, or Generation 3 switching
modules, are installed in the chassis.
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:
If port indexes in the range of 256 to 1020 are assigned to operational ports, Generation 1 switching
•
modules do not power up.
A block of contiguous port indexes is available. If this block of port indexes is not available,
•
Generation 1 modules do not power up.
Generation 1 modules.
If the switch has Supervisor-1 modules, the block of 32 contiguous port indexes must begin on the slot
Note
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 22-19
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
32-port 2-Gbps Fibre Channel Storage Services
Module (SSM).
14-port Fibre Channel/2-port Gigabit Ethernet
Multiprotocol Services (MPS-14/2) module
The allowed mix of Generation 1 and Generation 2 switching modules in a chassis is determined at
run-time, either when booting up the switch or when installing the modules. In some cases, the sequence
in which switching modules are inserted into the chassis determines if one or more modules is powered
up. When a module does not power up because of a resource limitation, you can see the reason by
viewing the module information in the Information pane.
For information on recovering a module powered-down because port indexes are not available, refer to
the Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x.
OL-17256-03, Cisco MDS NX-OS Release 4.x
Port Index Requirements for Generation 1 Modules
Combining Generation 1, Generation 2, and Generation 3 Modules
Table 22-19 shows the port index requirements for the
Number of Port Indexes Required
Supervisor-1 Module
16
32
32
32
32
32
Cisco MDS 9000 Family Fabric Manager Configuration Guide
Supervisor-2 Module
16
32
32
16
32
22
22-25