Setup guide

5-23
Cisco 6400 Software Setup Guide
OL-1183-04
Chapter5 Redundancy and SONET APS Configuration
Primary and Secondary Role Switching
Reversing NSP and NRP Redundancy Roles
To reverse the primary and secondary roles in a redundant pair of NSPs or NRPs, use the following
command in EXEC mode:
Reversing NLC Redundancy Roles
To reverse the primary and secondary roles in a redundant pair of NLCs, use the aps force or
apsmanual EXEC commands described in the “Setting SONET APS Priority Requests” section on
page5-20.
Resetting Cards, Slots, and Subslots
On the Cisco 6400 it is often useful to reset a card in a particular slot or subslot in a redundant pair. The
reset function described here is different from resetting an interface. In general, the hw-module (reset)
command simulates card removal and insertion of the specified device. If the specified card is the
primary device in a redundant pair, operation will automatically switch to the other card.
To reset a card, use the following command in EXEC mode:
When entered in EXEC mode, this command causes an immediate reset of the device installed in the
specified slot or subslot. When a port is reset, all of the input/output hardware associated with the port
is reset. If a slot is reset, both of the cards installed in the associated subslots are reset. The main-cpu
and sec-cpu options allow you to reset the desired NSP regardless of the one to which you are currently
connected.
Note The hw-module command is not supported for ports. The command only supports slots and subslots.
Command Purpose
Switch# redundancy force-failover
{slot | slot/subslot | main-cpu}
Forces the system to switch the current primary and secondary
devices of the redundant pair.
Command Purpose
Switch# hw-module {slot slot | subslot slot/subslot |
main-cpu | sec-cpu | nsp {A | B}} reset
Simulates removal and insertion of a device installed in the
Cisco 6400 chassis.