Installing a Redundant SRP Module

You can install a redundant SRP module into a running router, provided that the redundant SRP module has a valid, armed software release on its NVS card. Access to a software release in NVS ensures that the redundant SRP module can boot; the release need not be the same as that on the primary SRP module. To install a redundant SRP module into a running router, follow these steps:

Warning: Do not insert any metal object, such as a screwdriver, or place your hand into an open slot or the backplane when the router is on. Remove jewelry (including rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions prevent electric shock and serious burns.

Caution: When handling modules, use an antistatic wrist strap connected to the router’s ESD grounding jack, and hold modules by their edges. Do not touch the components, pins, leads, or solder connections. These actions help to protect modules from damage by electrostatic discharge.

1. Install the redundant SRP module into the open SRP slot (slot 6 or 7 for ERX-14xx models, the E120 router, and the E320 router; slot 0 or 1 for ERX-7xx models).

   For detailed information about installing the SRP module, see the ERX Hardware Guide or the E120 and E320 Hardware Guide.

2. Wait for the redundant SRP module to boot, initialize, and reach the standby state.

   When the module is in standby state, the REDUNDANT LED is on and the ONLINE LED is off. If you issue the show version command, the state field for the slot that contains the redundant SRP module is standby.

3. Synchronize the NVS file system of the redundant SRP module to that of the primary SRP module.

   Note: The SRP module reboots after synchronization is complete.

reload slot

• Use to reboot a selected slot on the router.
• If you specify a slot on the E120 router or the E320 router that contains an SRP module, you reboot the SC subsystem on that slot by default. You do not, however, reboot the fabric slice that resides on the slot.
  • Use the srp keyword to reboot the portion of the SC subsystem that resides on a specified SRP module.
  • Use the fabric keyword to reboot the fabric slice that resides on the specified SRP module.
• Example 1—Reboots the module in slot 7

  host1#reload slot 7

• Example 2—Reboots the SC on the SRP module in slot 7 (applies only to E120 and E320 routers)

  host1#reload slot 7 srp

• There is no no version.
• See reload slot.

synchronize

• Use to force the file system of the redundant SRP module to synchronize with the NVS file system of the primary SRP module.
• If you synchronize the redundant SRP module with the primary SRP module and the redundant module is armed with a release different from the one it is currently running, the redundant SRP module is automatically rebooted to load the armed release.
• Optionally, you can use the low-level-check keyword to force the router to validate all files or only configuration files in NVS, and to synchronize all files that failed the checksum test during the flash-disk-compare command as well as any other files that are unsynchronized. See Validating and Recovering Redundant SRP File Integrity for details.
• Examples

  host1#synchronize

  host1#synchronize low-level-check all

  host1#synchronize low-level-check configuration

• There is no no version.
• See synchronize.

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