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Configuring Modular Quality of Service Congestion Management on Cisco IOS XR Software
Information About Configuring QoS Congestion Management on Cisco IOS XR Software
QC-36
Cisco IOS XR Modular Quality of Service Configuration Guide
Figure 3 How a Traffic Policing Mechanism Regulates Traffic
The time interval between token updates (Tc) to the token bucket is updated at the CIR value each time
a packet arrives at the traffic policer. The Tc token bucket can contain up to the Bc value. If a packet of
size B is greater than the Tc token bucket, then the packet exceeds the CIR value and a configured action
is performed. If a packet of size B is less than the Tc token bucket, then the packet conforms and a
different configured action is performed.
No
Packet of size B
No
Ye s
Action
B>Tc
Exceed
Action
Conform
CIR
Bc
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