Hewlett Packard Enterprise FlexFabric 5940 Series, Руководство по настройке

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Figure 7 Traffic policing
Traffic policing is widely used in policing traffic entering the ISP networks. It can classify the policed
traffic and take predefined policing actions on each packet depending on the evaluation result:
•
Forwarding the packet if the evaluation result is "conforming."
•
Dropping the packet if the evaluation result is "excess."
•
Forwarding the packet with its precedence re-marked if the evaluation result is "conforming."
GTS
GTS supports shaping the outbound traffic. GTS limits the outbound traffic rate by buffering
exceeding traffic. You can use GTS to adapt the traffic output rate on a device to the input traffic rate
of its connected device to avoid packet loss.
The differences between traffic policing and GTS are as follows:
•
Packets to be dropped with traffic policing are retained in a buffer or queue with GTS, as shown
in
Figure 8 . When enough tokens are in the token bucket, the buffered packets are sent at an
even rate.
•
GTS can result in additional delay and traffic policing does not.