Traffic policing is typically used to limit the traffic entering or leaving a network in order to prevent traffic bursts. If the traffic volume of a service is too large, a device configured with traffic policing can take corresponding measures, such as dropping packets related to the service or limiting the packet priority.
If there is no limit on the traffic sent by users, continuous burst data from numerous users will congest the network. To fully utilize the limited network resources and better serve more users, user traffic must be limited. Traffic policing is a traffic control policy that limits network traffic and resource usage by monitoring traffic specifications. Traffic policing can be applied to both incoming and outgoing traffic.
Interface-based traffic policing controls all the traffic that enters an interface, regardless of the packet type. It typically applies to the core devices on a network.
The NetEngine 8000 F supports traffic policing configuration in both the inbound and outbound directions. Traffic policing can be classified as single-token-bucket or dual-token-bucket traffic policing.
Before configuring traffic policing, complete the following tasks:
Configure physical parameters for interfaces.
Configure link layer attributes for the interfaces to work properly.
Configure IP addresses for the interfaces.
Enable routing protocols to ensure reachable routes between devices.