Cisco Cisco Packet Data Interworking Function (PDIF) Prospecto
RS-232 Port Configuration Mode Commands
preferred slot ▀
Cisco ASR 5x00 Command Line Interface Reference ▄
7879
preferred slot
Assigns revertive or non-revertive control to port redundancy auto-recovery.
Default: non-revertive operation
Product
PDSN
FA
HA
GGSN
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > RS-232 Port Configuration
configure > port rs232 slot_number/port_number
Entering the above command sequence results in the following prompt:
[local]host_name(config-port-slot_number/port_number)#
Syntax
preferred slot slot#
no preferred slot slot#
no
Disables revertive, or auto-recovery, operation for selected port.
slot#
Identifies the physical chassis slot where the SPIO card is installed.
Usage
This command enables or disables revertive port redundancy, wherein after a port failover, when the original
port is restored to service (such as link up) the system will return service to that port automatically.
Disabled, which is the default setting, causes non-revertive operation; requiring an administrative user to
manually issue a port switch to command to return service to the original port.
This command must be issued on a per port basis, allowing you to configure specific ports to be used on
individual line cards or SPIO cards. For example, ports 1 through 4 could be configured as “preferred” on the
line card in slot 17, while ports 5 through 8 are “preferred” on the line card in slot 33. In this scenario, both
line cards would be in an Active operational state while still providing LC and port redundancy for the other.
port is restored to service (such as link up) the system will return service to that port automatically.
Disabled, which is the default setting, causes non-revertive operation; requiring an administrative user to
manually issue a port switch to command to return service to the original port.
This command must be issued on a per port basis, allowing you to configure specific ports to be used on
individual line cards or SPIO cards. For example, ports 1 through 4 could be configured as “preferred” on the
line card in slot 17, while ports 5 through 8 are “preferred” on the line card in slot 33. In this scenario, both
line cards would be in an Active operational state while still providing LC and port redundancy for the other.
Important:
This command is not supported on all platforms.
Example