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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Chapter 5      Configuring IE2100 CNS Agents
    Configuring CNS Embedded Agents
Enabling the CNS Configuration Agent
After enabling the CNS event agent, start the CNS configuration agent on the switch. You can enable the 
configuration agent with these commands:
• the cns config initial global configuration command enables the configuration agent and initiates 
an initial configuration on the switch.
• the cns config partial global configuration command enables the configuration agent and initiates 
a partial configuration on the switch. You can then remotely send incremental configurations to the 
switch from the Configuration Registrar.
Enabling an Initial Configuration
Beginning in privileged EXEC mode, follow these steps to enable the CNS configuration agent and 
initiate an initial configuration on the switch:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
cns config connect-intf interface-prefix [ping-interval 
seconds] [retries num]
Enter the connect-interface-config submode, and 
specify the interface for connecting to the 
Configuration Registrar.
• Enter the interface-prefix for the connecting 
interface. You must specify the interface type 
but need not specify the interface number.
• (Optional) For ping-interval seconds, enter the 
interval between successive ping attempts. The 
range is 1 to 30 seconds. The default is 10 
seconds.
• (Optional) For retries num, enter the number of 
ping retries. The range is 1 to 30. The default 
is 5.
Step 3
config-cli
or
line-cli
Enter config-cli to connect to the Configuration 
Registrar through the interface defined in cns config 
connect-intf. Enter line-cli to connect to the 
Registrar through modem dialup lines.
Note The config-cli interface configuration 
command accepts the special directive 
character & that acts as a placeholder for the 
interface name. When the configuration is 
applied, the & is replaced with the interface 
name. For example, to connect through 
FastEthernet0/0, the command 
config-cli 
ip route 0.0.0.0 0.0.0.0 &
 generates the 
command 
ip route 0.0.0.0 0.0.0.0 
FastEthernet0/0
.
Step 4
exit Return to global configuration mode.
Step 5
hostname name Enter the host name for the switch.