Edge-Core ECS4810-12M Layer 2 Management Manual page 299

packet, the switch will also mark the two color bits used to set the
drop precedence of a packet for Random Early Detection.
The color modes include "Color-Blind" which assumes that the
packet stream is uncolored, and "Color-Aware" which assumes that
the incoming packets are pre-colored. The functional differences
between these modes is described at the beginning of this section
under "srTCM Police Meter."
Committed Information Rate (CIR) – Rate in kilobits per
■
second. (Range: 0-1000000 kbps at a granularity of 64 kbps or
maximum port speed, whichever is lower)
The rate cannot exceed the configured interface speed.
Committed Burst Size (BC) – Burst in bytes.
■
(Range: 0-16000000 bytes at a granularity of 4k bytes)
The burst size cannot exceed 16 Mbytes.
Excess Burst Size (BE) – Burst in excess of committed burst
■
size. (Range: 0-16000000 bytes at a granularity of 4k bytes)
The burst size cannot exceed 16 Mbytes.
Conform – Specifies that traffic conforming to the maximum
■
rate (CIR) will be transmitted without any change to the DSCP
service level.
Transmit – Transmits in-conformance traffic without any
■
change to the DSCP service level.
Exceed – Specifies whether traffic that exceeds the maximum
■
rate (CIR) but is within the excess burst size (BE) will be
dropped or the DSCP service level will be reduced.
Set IP DSCP – Decreases DSCP priority for out of
■
conformance traffic. (Range: 0-63)
Drop – Drops out of conformance traffic.
■
Violate – Specifies whether the traffic that exceeds the excess
■
burst size (BE) will be dropped or the DSCP service level will be
reduced.
Set IP DSCP – Decreases DSCP priority for out of
■
conformance traffic. (Range: 0-63)
Drop – Drops out of conformance traffic.
■
trTCM (Police Meter) – Defines the committed information rate
■
(CIR, or maximum throughput), peak information rate (PIR), and
their associated burst sizes – committed burst size (BC, or burst
rate) and peak burst size (BP), and the action to take for traffic
conforming to the maximum throughput, exceeding the maximum
throughput but within the peak information rate, or exceeding the
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| Quality of Service
C 11
HAPTER
Creating QoS Policies