Which protocol can cause overload on a CPU of a managed device?

Question:
Which protocol can cause overload on a CPU of a managed device?

• Netflow
• WCCP
• IP SLA
• SNMP

Explanation: Sometimes, messages like this might appear in the router console:
%SNMP-3-CPUHOG: Processing [chars] of [chars]
They mean that the SNMP agent on the device has taken too much time to process a request.
You can determine the cause of high CPU use in a router by using the output of the show process cpu command.
Note: A managed device is a part of the network that requires some form of monitoring and management (routers, switches, servers, workstations, printers…).

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