Chapter 19 Quality of Service (QoS)
P-2812HNU-51c User’s Guide
321
Meter Type Select a traffic metering algorithm used in this policer.
The Simple Token Bucket algorithm uses tokens in a bucket to control
when traffic can be transmitted. Each token represents one byte. The
algorithm allows bursts of up to b bytes which is also the bucket size.
The Single Rate Three Color Marker (srTCM) is based on the token
bucket filter and identifies packets by comparing them to the Committed
Information Rate (CIR), the Committed Burst Size (CBS) and the Excess
Burst Size (EBS).
The Two Rate Three Color Marker (trTCM) is based on the token bucket
filter and identifies packets by comparing them to the Committed
Information Rate (CIR) and the Peak Information Rate (PIR).
See Section 19.8 on page 324 for more information.
Committed
Rate
Specify the guaranteed rate at which packets are admitted to the network.
This is to specify how many bytes of tokens are added to a bucket every
second.
Committed
Burst Size
Specify the guaranteed amount of bytes that are admitted at the
committed rate.
This is the maximum size of the (first) token bucket in a traffic metering
algorithm.
Excess Burst
Size
Specify the additional amount of bytes that are admitted at the committed
rate besides the committed burst size.
This is the maximum size of the second token bucket in the srTCM.
Peak Rate Specify the maximum rate at which packets are admitted to the network.
The peak rate should be greater than or equal to the committed rate. This
is to specify how many bytes of tokens are added to the second bucket
every second in the trTCM.
Peak Burst
Size
Specify the maximum amount of bytes that are admitted at the committed
rate.
This is the maximum size of the second token bucket in the trTCM.
Conforming
Action
Specify the action that the P-2812HNU-51c takes on green-marked
packets.
Select Pass to forward the packets.
Select DSCP Mark to assign a specified DSCP number (between 0 and 63)
to the packets and forward them. The packets are dropped if there is
congestion on the network.
Partial
Conforming
Action
Specify the action that the P-2812HNU-51c takes on yellow-marked
packets.
Select Pass to forward the packets.
Select Drop to discard the packets.
Select DSCP Mark to assign a specified DSCP number (between 0 and 63)
to the packets and forward them. The packets are dropped if there is
congestion on the network.
Table 107 QoS Policer Setup: Add
LABEL DESCRIPTION
