Queue Scheduling; Flow-Based Traffic Accounting; Burst; Traffic Mirroring - H3C S5100-SI Operation Manual

SDWRR: schedules the two queues in turn in such a way that packets identical to one
weight are dequeued from queue 0 first and then from queue 1. The procedure is
repeated until the scheduling for one queue is over. Then, SDWRR schedules the
queue with remaining weights to dequeue the number of packets identical to the
remaining weights. The detailed scheduling sequence is described in the
Table 1-11 Queue-scheduling sequence of SDWRR
Queue
scheduling
algorithm
WRR
SDWRR

Flow-Based Traffic Accounting

Flow-based traffic accounting uses ACL rules for traffic classification and collects statistics
about ACL matching packets. With this function, you can collect statistics about the
packets you are interested in.

Burst

The burst function improves packet buffering and forwarding performance in the following
scenarios:
Dense broadcast or multicast traffic and massive burst traffic are present.
High-speed traffic is forwarded over a low-speed link or traffic received from multiple
interfaces at the same speed is forwarded through an interface at the same speed.
By enabling the burst function on your device, you can improve the processing
performance of the device operating in the above scenarios and thus reduce packet loss
rate. Because the burst function may affect the QoS performance of your device, you must
make sure that you are fully aware of the impacts when enabling the burst function.

Traffic Mirroring

Traffic mirroring identifies traffic with ACLs and mirrors the matched packets to a monitor
port for traffic analysis. Traffic mirroring can be done globally or on a per-port, per-VLAN,
or per-port group basis. For more information, refer to the Mirroring module of this manual.

QoS Configuration

QoS Configuration Task List

Complete the following tasks to configure QoS:
Queue scheduling sequence
0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1
0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0
1-18
Table 1-11.
Remarks
0 indicates packets
identical to one
weight in queue 0.
1 indicates packets
identical to one
weight in queue 1.