Cisco ASR1006 Configuration Guide - Page 159
Configuring SSO on a Cisco ASR 1001, Cisco ASR 1002, or Cisco ASR 1004 Router
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Software Upgrade Process Upgrade Process With Service Impact for Nonredundant Platforms Configuring SSO on a Cisco ASR 1001, Cisco ASR 1002, or Cisco ASR 1004 Router The following instructions show how to configure SSO on a Cisco ASR 1001, Cisco ASR 1002, and Cisco ASR 1004 Routers. The standby IOS process is created automatically as part of these configuration steps. Step 1 (Optional) Enter the show version command to confirm the amount of DRAM on your router: Router# show version 32768K bytes of non-volatile configuration memory. 4194304K bytes of physical memory. 921599K bytes of eUSB flash at bootflash:. 39004543K bytes of SATA hard disk at bootflash:. Configuration register is 0x2102 Step 2 In the example show version output, the router has 4 GB of DRAM memory. If you are using a Cisco ASR 1001, Cisco ASR 1002, or Cisco ASR 1004 Router with 2-GB DRAM memory on the RP, SSO cannot be configured on your RP. (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 Step 3 In this example, HA for the dual RPs is not configured, as indicated by the nonredundant operational mode. 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# Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 77