You are designing a solution to eliminate the risk of high CPU utilization on a core network composed of CRS-1 devices. Which option would eliminate the risk of high CPU utilization across the…

LPTS on the CRS-1 enforces rate limiting at the hardware level using network processing units, throttling SNMP and other control plane flows before they ever reach the route processor. This is fundamentally different from software-based policing because the CPU is protected upstream in the forwarding path. No other listed option achieves hardware-level enforcement of SNMP flow rate on this platform.

In-band control plane policy is a software construct that still allows packets to queue toward the CPU before being acted upon, so it does not eliminate CPU impact at the hardware level.

A software control plane policy can reduce SNMP rate but does not intercept traffic in hardware before it reaches the route processor, leaving residual CPU exposure.

The control-plane management-plane in-band construct applies software policy to in-band management traffic but lacks the hardware-enforcement capability of LPTS on CRS-1 line cards.

Out-of-band management plane separates the management path physically but does not provide hardware rate limiting for SNMP flows arriving on in-band interfaces, so CPU risk remains for those flows.