About Qos; Qos Configuration; Qos Binding - Digi 6350-SR User Manual

Quality of Service (QOS)

About QOS

Minimum firmware: 18.4.54
Quality Of Service (QOS) is a feature within Digi routers to manage traffic performance of different
services, such as Voice over IP (VoIP), cloud computing, traffic shaping, traffic prioritizing, bandwidth
allocation etc.. The configuration for QOS is included in the Firewall section of the device
configurations.
By default, QOS functionality is disabled, however there is a configuration designed for a typical VoIP
site defined. The default configuration provides an example of matching packets as they are routed
out from the device onto the LAN (labelled inbound) and out from the device on the WAN interface
(labelled outbound). It is important to remember when configuring QOS that we can only control the
egress packet queue on each interface, not what we receive on the interface (packet ingress).
This article explains the configuration related to QOS on Digi devices. Further explanation of each
configurable field can be accessed by hovering over the Help button in the small triangle tip next to
the field-in-question.

QOS configuration

All bindings, policies, and rules are added and configured in Firewall > Quality Of Service. If custom
QOS bindings are required, click on Add to add a new binding. The order of the bindings can be sorted
by simply dragging on the binding and moving it.

QOS Binding

Each Binding should be uniquely bound to a network interface. A binding contains the policies and
rules applicable packets exiting on that interface. Each binding includes the following configurable
fields:
Field Description
Enable To enable or disable the binding of interest.
Label Plain text used to name this binding.
Interface The interface to queue egress packets on. The interface is fundamental and we can
only match traffic that is being sent out on this interface.
Interface The maximum bandwidth of the interface with respect to the direction of traffic flow
bandwidth this binding is defining. It is recommended that a 95% of the maximum interface
(Mbit) bandwidth is used in this field.
Policy At least one policy for each binding is required. Each binding policy can contain up to 30
rules.
Digi 6350-SR/6355-SR LTE Router User Guide
About QOS
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