MRV Communications EM316LNXNM-OT, Руководство пользователя

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EM316LNXNM-OT Configuration Context
PN 1275005-100 Rev E6 61
6.10. Module Replacement and Type-Locking
By default, there are no restrictions between slots in a system chassis for slot devices (modules or blades)
that are supported by the chassis. Once configured for a specific application, use the following command
to restrict each slot in the Fiber Driver chassis to allow only the currently installed device type.
fiberdriver# configure terminal
fiberdriver(config)# sys lock-types
fiberdriver(config)#
Once locked by the command above, each system slot will initialize only the associated device type. To
return to the default state, unlock all slots in the chassis with the command below:
fiberdriver# configure terminal
fiberdriver(config)# no sys lock-types
fiberdriver(config)#
To unlock only one slot in the chassis and install any supported device into that slot, use the command
below in the target slot context:
fiberdriver(slot/1.s)# clear-type
fiberdriver(slot/1.s)#
When removing and inserting slot devices in a chassis, the LNXNM uses the following initialization rules:
• With type-locking enabled, a slot device may be replaced only with the same device type; the system
rejects any other device type in the same slot. The "
clear-type
" command releases the slot as if
it was not previously occupied. The "
no sys lock-types
" command releases all the slot type
restrictions.
• When type-locking is disabled, a slot device may be replaced with any supported device type. The
system discards any previous module configuration, and it initializes the new card to its default settings.
• When replacing a slot device with the same type in the same slot, the LNXNM manager initializes the
new device with the current saved configuration for that slot. Type-locking does not matter, in this case.
• If a slot has never been occupied, then the LNXNM initializes a newly installed module to its default
settings. If type-locking is enabled, the slot restricts future replacement devices to the installed type.
Configuration commands for hardware that is not yet installed allows setup of slot devices before plugging
them in. Any configuration may be entered, but options that are not supported by the new device are
dropped. Only the applicable commands are used to initialize the new device.
The running configuration may also include information for devices that have been removed from the
system. Saving this information is very useful when replacing the old device with the same model. If the
previous module configuration is no longer needed in a slot, the administrator can remove the slot entries
from the
show running-config
display by using the "
clear-type
" command in the target slot
context.