Chapter 7: Quality of Service (QoS)
Configuring Policers (Rate Metering)
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CoS – The CoS assigned to frames with the designated MPLS EXP value.
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Color – The Color assigned to frames with the designated MPLS EXP value.
4.
Click Apply, then Close.
Configuring Policers (Rate Metering)
This section includes:
Policer (Rate Metering) Overview
Assigning Policers to Interfaces
Configuring the Ingress and Egress Byte Compensation
Policer (Rate Metering) Overview
The PTP 820 switching fabric supports hierarchical policing on the logical interface level. You can
define up to 250 rate meter (policer) profiles.
Note
Policing on the service point level, and the service point and CoS level, is planned for
future release.
PTP 820's policer mechanism is based on a dual leaky bucket mechanism (TrTCM). The policers
can change a frame’s color and CoS settings based on CIR/EIR + CBS/EBS, which makes the policer
mechanism a key tool for implementing bandwidth profiles and enabling operators to meet strict
SLA requirements.
The output of the policers is a suggested color for the inspected frame. Based on this color, the
queue management mechanism decides whether to drop the frame or to pass it to the queue.
Configuring Policer Profiles
This section includes:
Adding a Policer Profile
To add a policer profile:
1.
Select Ethernet > QoS > Policer > Policer Profile. The Policer Profile page opens.