3-4. Managing Modules
Viewing ModulesIn both IOS and COS, you can use modular switches to effect a more flexible switch configuration. To view the modules installed on a switch, use one of the following commands:
These commands show the hardware or module information for the switches. Accessing ModulesMost modules and ports are configured through the main CLI for the switch. However, a handful of modules, such as the Multilayer Switch Feature Card (MSFC) or the ATM interface on a 2900MXL, must be accessed individually and configured separately. To access these interfaces, use the session command:
The slot# or mod# indicates in which slot or module in the switch the card is. For a 2900MXL, this is slot 1 or 2. For a Layer 3 modulean RSM or MSM in a Catalyst 4000, 5000, or 6000 switchthis corresponds to the module number into which the card is plugged. For a Route Switch Feature Card (RSFC) or MSFC, this is 15 for the MSFC or RSFC in slot 1 and 16 for the MSFC or RSFC in slot 2. NOTE You can also access many of these modules with a console port directly on the blade. For console access to the MSFC on the Catalyst 6000, use the command switch console. Resetting ModulesYou can reset modules on an individual basis. Therefore, you can jumpstart a group of ports without having to reset the entire switch:
The reset command causes an entire module to be powered down and then back up, and forces the module to go through Power-On Self-Test (POST) as it reloads. Some IOS switches do not offer this option. For those switches, you can reset a port with the shutdown and no shutdown commands. Powering Modules Up and DownFor the IOS and COS modular switches, you can power down a module. Powering down disables the module and all its ports. If the switch is reset or power cycled, the module remains in a powered-down state. This state can be useful for troubleshooting a boot problem or if the power supply cannot handle the complete switch power load:
These commands disable the modules. For an IOS switch, none of the module's configuration are saved; and if the switch is reset, all the configuration entries for that module are lost. To re-enable the modules, use the following commands:
Viewing Module ConfigurationsFor COS devices, you can view the configuration of a specific module as follows:
Use the module number to specify which module's parameters you want to view. If you do not specify the all option, only the nondefault configuration parameters display. Clearing Module ConfigurationsFor COS devices, you can clear the configuration of a specific module as follows:
Use mod# to specify which module you want to clear. This command is particularly useful if you remove a card and replace it with a different one. If you remove an 8-port Gigabit Ethernet module and replace it with a 16-port module, for example, you must clear the configuration of the slot before the new module will be active. |