Traffic prioritization, Qos setting – Comtrol ES7510-XT User Manual

Page 101

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RocketLinx ES7510-XT User Guide: 2000571

Rev. D

Traffic Prioritization - 101

Configuration Using the Web Interface

Traffic Prioritization

Quality of Service (QoS) provides a traffic prioritization mechanism which allows you to deliver better service
to certain flows. QoS can also help to alleviate congestion problems and ensure high-priority traffic is
delivered first. This section allows you to configure Traffic Prioritization settings for each port with regard to
setting priorities.

The ES7510-XT QoS supports four physical queues, weighted fair queuing (WRR) and Strict Priority scheme,
that follows the IEEE 802.1p CoS tag and IPv4 TOS/DiffServ information to prioritize the traffic of your
industrial network.

The following web pages are included in this group:

QoS Setting

CoS-Queue Mapping

on Page 102

DSCP-Queue Mapping

on Page 103

Optionally, you can use the CLI for configuration, see

Traffic Prioritization (CLI)

on Page 175.

QoS Setting

Use this subsection to set up QoS settings for the ES7510-XT.

QoS Setting Page

Queue Scheduling

Use an 8,4,2,1
weighted fair
queuing scheme

This is also known as WRR (Weight Round Robin). The ES7510-XT follows the 8:4:2:1
rate to process the packets in a queue from the highest priority to the lowest. For
example, the system processes 8 packets with the highest priority in the queue, 4 with
middle priority, 2 with low priority, and 1 with the lowest priority at the same time.

Use a strict
priority scheme

Packets with higher priority in the queue are always processed first, except that there is
no packet with higher priority.

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