Network/Access Uplink Queue Functionality; Ingress Meter Functionality; Accounting And Statistics - Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual

Egress Port Rate Limiting

Network/Access Uplink Queue Functionality

When an egress-rate sub-rate value is given, the network/access-uplink queue rates that are
specified using percentages will use the egress-rate value instead of the port bandwidth to
configure the appropriate queue rates. Configuration of egress port rate to different values will
result in a corresponding dynamic adjustment of rates for the queues configured on network and
access-uplink ports.
When the egress-rate sub-rate value is set, CBS/MBS of the associated network queues will not
change.
If frame overhead accounting is enabled, then queue scheduler accounts for the Ethernet frame
overhead.

Ingress Meter Functionality

To enable system-wide consistency in configuring QoS queue and meter rate parameters, the
meters used on the system ingress might need to account for Ethernet frame overhead. Network/
access uplink ingress and service ingress meters account for Ethernet frame overhead. A
configurable CLI command can enable or disable the frame overhead accounting.
The frame-based-accounting CLI command enables accounting for the frame overhead. This is a
system-wide parameter affecting the behavior of all the meters in the system.

Accounting and Statistics

All meters based accounting logs and statistics accounts for frame overhead when counting octets.
Ingress and egress SAP statistics/accounting logs, which counts the number of received and
transmitted octets respectively, also account for frame overhead.
Page 116 7210 SAS-E OS Quality of Service Guide