# Disabling and Reenabling Line Modules, SRP Modules, and SFMs

Disabling a line module, an SRP module, or an SFM has the same effect as removing that module from a slot. A disabled module cannot operate, although its configuration remains in NVS. For the module to operate, you must reenable it.

slot disable

- Use to disable the module in the specified slot.
- You can use this command to disable a module so that you can run diagnostic tests on the module.
- You cannot use this command on a standby SRP module.
- If you specify a slot on the E120 or E320 router that contains an SRP module, you disable the SC subsystem on that slot by default. You do not, however, disable the fabric slice that resides on the slot.
  - Use the srp keyword to disable only the portion of the SC subsystem that resides on a specified SRP module.
  - Use the fabric keyword to disable only the fabric slice that resides on the specified SRP module.
- If you specify a slot that contains a line module, you disable only the line module; you do not disable the line module and the I/O modules and IOAs associated with it. To disable a specific IOA on the E120 or E320 Router, issue adapter disable command.
- Example 1—Disables the module in slot 3
  host1(config)#slot disable 3
- Example 2—Disables the SRP module and the SC subsystem in slot 7 (applies only to the E120 and E320 routers)
  host1(config)#slot disable 7
- Example 3—Disables only the fabric slice on the SRP module in slot 7 (applies only to E120 and E320 routers)
  host1(config)#slot disable 7 fabric
- There is no no version.
- See slot disable.

slot enable

- Use to enable the module in the specified slot.
- Allows you to restart the module that was installed in the slot.
- You cannot use this command on a standby SRP module.
- If you specify a slot on the E120 or E320 Broadband Services Routers that contains an SRP module, you enable the SC subsystem on that slot by default. You do not, however, enable the fabric slice that resides on the slot.
  - Use the srp keyword to enable only the portion of the SC subsystem that resides on a specified SRP module.
  - Use the fabric keyword to enable only the fabric slice that resides on the specified SRP module.
- If you specify a slot that contains a line module, you enable only the line module; you do not enable the line module and the I/O modules and IOAs associated with it. To enable a specific IOA on the E120 or E320 Broadband Services Routers, use adapter enable command.
- The default is enable.
- Example 1—Enables the module in slot 3
  host1(config)#slot enable 3
- Example 2—Enables the SRP module and the SC subsystem in slot 7 (applies only to E120 and E320 routers)
  host1(config)#slot enable 7
- Example 3—Enables only the fabric slice on the SRP module in slot 7 (applies only to E120 and E320 routers)
  host1(config)#slot enable 7 fabric
- There is no no version.
- See slot enable.