Nortel Networks 8683POS manual Replacing a module, Starting the system after a module replacement

Chapter 3 Installing the Passport 8683POS Module 43

Replacing a module

You can hot-swap Passport 8683POS Modules as long as the module you are removing has the same MDAs installed as the module you are inserting. In this case, the system saves the configuration. If you hot-swap the module with a module that has different MDAs installed, you must reconfigure the module.

If you are hot-swapping modules, read the following section for information about how the routing switch recognizes replacement modules and how to avoid potential problems.

Warning: The Passport 8683POS Module itself is hot-swappable; the

MDAs necessary to pass traffic on the module are not hot-swappable.

Starting the system after a module replacement

After you replace a module on your chassis, you can expect the following results:

•In a running system, when you replace an input/output (I/O) module with a module of the same type, the system restores the configuration of all the ports.

•When you replace a module with one of a different type, the system discards the configuration of the old ports, and the new ports are added to either the default VLAN or a null VLAN, depending on the operating mode of the switch.

•When you save the configuration in nonvolatile random access memory (NVRAM), turn off the switch, replace a module with a different module type, and turn the system on again, the system discards the configuration of the old ports, and adds new ports to either the default VLAN or an unassigned VLAN, depending on the operating mode of the switch.

Starting the system with an empty slot

When you save the configuration in NVRAM, shut down the system, remove a module, turn on the chassis with that slot empty, and then populate the slot with a module of the same type as the one previously there, the system is not able to restore the original configuration.

Using the Passport 8683POS Module