On a Cisco IOS XR router, which mechanism protects the router resources by filtering and policing
the packets flows that are destined to the router that is based on defined flow-type rates?
A.
LLQ
B.
LPTS
C.
Committed Access Rate
D.
Control Plane Policing
E.
Management Plane Protection
F.
NetFlow
G.
ACL
Explanation:
Local Packet Transport Services (LPTS) maintains tables describing all packet flows destined for
the securedomain router (SDR), making sure that packets are delivered to their intended
destinations.
The Low Latency Queueing feature brings strict priority queueing to Class-Based Weighted Fair
Queueing(CBWFQ).
The Control Plane Policing feature allows users to configure a quality of service (QoS) filter that manages the traffic flow of control plane packets to protect the control plane of Cisco IOS routers and switches against reconnaissance and denial-of-service (DoS) attacks. In this way, the control plane (CP) can help maintain packet forwarding and protocol states despite an attack or heavy traffic load on the router or switch.
The Management Plane Protection (MPP) feature in Cisco IOS software provides the capability to restrict the interfaces on which network management packets are allowed to enter a device. The MPP feature allows a network operator to designate one or more router interfaces as management interfaces. Device management traffic is permitted to enter a device only through these management interfaces. After MPP is enabled, no interfaces except designated management interfaces will accept network management traffic destined to the device.
Cisco IOS NetFlow efficiently provides a key set of services for IP applications, including network traffic accounting, usage-based network billing, network planning, security, Denial of Service monitoring capabilities, and network monitoring. NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Cisco invented NetFlow and is the leader in IP traffic flow technology.
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