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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 5 Software Upgrade Processes Supported by Cisco ASR 1000 Series Routers
Upgrade Process with Service Impact for Nonredundant Platforms
If you are using a Cisco ASR 1001, Cisco ASR 1001-X, Cisco ASR 1002, Cisco ASR 1002-X, or Cisco
ASR 1004 Router with less than required DRAM memory on the RP, SSO cannot be configured on your
RP. For more information, see Prerequisites for Software Upgrade Processes, page 5-2.
Step 2 (Optional) Enter show redundancy states to see the current HA configuration:
Router# show redundancy states
my state = 13 -ACTIVE
peer state = 1 -DISABLED
Mode = Simplex
Unit ID = 6
Redundancy Mode (Operational) = Non-redundant
Redundancy Mode (Configured) = Non-redundant
Redundancy State = Non Redundant
In this example, HA for the dual RPs is not configured, as indicated by the nonredundant operational
mode.
Step 3 Enter configure terminal to enter global configuration mode:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Step 4 Enter the redundancy command to enter redundancy configuration mode:
Router(config)# redundancy
Router(config-red)#
Step 5 Enter mode sso to enable SSO, or mode none to disable dual software redundancy:
Router(config-red)# mode sso
Router(config-red)# mode none
Step 6 Return to privileged EXEC mode using any method, such as entering Ctrl-Z or the exit command
multiple times until you get to the # router prompt:
Router(config-red)#^Z
Router#
Router(config-red)#exit
Router(config)#exit
Router#
Step 7 Enter the show redundancy states command to confirm the configured redundancy mode changed to
your new configuration.
In the following example, the configured redundancy mode has been changed to SSO. Note that the
operation redundancy mode remains unchanged:
Router# show redundancy states
my state = 13 -ACTIVE
peer state = 1 -DISABLED
Mode = Simplex
Unit ID = 6
Redundancy Mode (Operational) = Non-redundant
Redundancy Mode (Configured) = sso
Redundancy State = Non Redundant
Step 8 Enter the copy running-config startup-config command to save the new configuration, and press enter
to confirm the filename (or change the name, if desired):