Setup guide

5-14
Cisco 6400 Software Setup Guide
OL-1183-04
Chapter5 Redundancy and SONET APS Configuration
NSP Redundancy
Step 6 Save the configuration file to the startup configuration in NVRAM. Because automatic synchronization
is enabled, this step saves the boot system commands to both NSP startup configurations.
Switch# copy system:running-config nvram:startup-config
Step 7 If the primary NSP is not running the correct image, reset both NSPs.
Switch# hw-module nsp A reset
Switch# hw-module nsp B reset
Step 8 If the primary NSP is running the earlier software version, perform a switchover from the current
primary to the secondary NSP.
Switch# redundancy force-failover main-cpu
Verifying NSP Redundancy for Software Error Protection
To verify that NSP redundancy is configured for software error protection, use the show bootvar EXEC
command. Check that the secondary NSP is up, that the BOOT variables identify different software
images, and that all other variables match.
Switch# show bootvar
BOOT variable = tftp:dir/c6400s-wp-mz.121-5.DC.bin 10.255.254.254,12;
CONFIG_FILE variable =
BOOTLDR variable =
Configuration register is 0x2000 (will be 0x1 at next reload)
Secondary is up.
Secondary BOOT variable = tftp:dir/c6400s-wp-mz.121-4.DC.bin 10.255.254.254,12;
Secondary CONFIG_FILE variable =
Secondary BOOTLDR variable =
Secondary Configuration register is 0x1
Booting Redundant NSPs from a Network Server
To boot a dual-NSP system from a network server (also called netbooting), the network management
interface (Ethernet 0/0/0 on the NSP) must be configured for Dynamic Host Configuration Protocol
(DHCP) IP address acquisition. To do this, complete the following steps beginning in global
configuration mode:
Command Purpose
Step1
Switch(config)# redundancy
Switch(config-r)# main-cpu
Switch(config-r-mc)# auto-sync standard
Enables automatic synchronization between the
redundant NSPs.
Step2
Switch(config-r-mc)# exit
Switch(config-r)# exit
Returns to global configuration mode.
Step3
Switch(config)# interface ethernet0/0/0
Switch(config-if)# ip address negotiated
Configures the NSP network management interface
for DHCP IP address acquisition.
Step4
Switch(config-if)# end
Returns to privileged EXEC mode.
Step5
Switch# copy system:running-config
nvram:startup-config
Saves the configuration to the startup configuration.