Installation guide

redundancy prefer
GRP Redundant Processor Support 27
redundancy prefer
Use the redundancy prefer EXEC command to define which card slot in a Cisco 12000 will contain
the preferred primary GRP.
redundancy prefer { none | slot number }
Syntax Description
Default
None
Command Mode
Privileged EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2 GS.
Use this command when you wish to override the arbitration scheme for determining which slot
contains the primary GRP, or to explicitly define which slot contains the primary GRP.
Use this command to define a preference for the slot that contains the primary GRP. The arbitration
scheme considers this preference, however, defining a preference does not guarantee that preference
will be observed. Under normal circumstances, a GRP in the preferred slot will become the primary.
The arbitration scheme may overide that preference should the preference conflict with other
arbitration data. For example, if the GRP in the preferred slot is new to the chassis and likely to have
an inappropriate startup-config, the other GRP will instead become the primary.
If no GRP is installed in the preferred slot, the arbitration scheme determines which GRP will be
primary.
When you specify redundancy prefer none, the backplane NVRAM is initialized and existing
values are stored.
Example
The following example defines card slot 8 as containing the primary GRP:
redundancy prefer slot 8
Related Commands
redundancy
none Allows any slot in a Cisco 12000 to contain the primary GRP.
slot number Defines which slot contains the preferred primary GRP. The value for
number is any valid card slot in the Cisco 12000.