Configuring Class of Service
D-Link
Unified Wired and Wireless Access System
Oct. 2015
Page 336
D-Link UWS User Manual
Alternatively, when a port is configured as untrusted, it does not trust any incoming packet priority designation
and uses the port default priority value instead. All packets arriving at the ingress of an untrusted port are
directed to a specific CoS queue on the appropriate egress port(s) in accordance with the configured default
priority of the ingress port. This process is also used for cases where a trusted port mapping is unable to be
honored, such as when a non-IP packet arrives at a port configured to trust the IP precedence or IP DSCP value.
To display the Trust Mode Configuration page, click
LAN > QoS > Class
of
Service > Trust Mode Configuration
in the navigation menu.
Figure 219: Trust Mode Configuration
Table 200: Trust Mode Configuration Fields
Field
Description
Interface
The menu contains all CoS configurable interfaces. Select the Global option to
apply the same trust mode to all interfaces. Select an individual interface from
the menu to override the global settings on a per-interface basis.
Interface Trust Mode
Specifies whether or not an interface (or all interfaces if the Slot/Port field is
set to Global) trust a particular packet marking when the packet enters the
port. The default value is trust dot1p. The mode can only be one of the
following:
• untrusted
• trust dot1p
• trust ip-dscp
Non-IP Traffic Class
This field appears if the trust mode for the selected interface is trust ip-dscp.
The field displays the traffic class (queue) to which all non-IP traffic is directed
when in the interface trust mode is trust ip-dscp. The value is fixed to 1.
Untrusted Traffic Class
This field appears if the trust mode for the selected interface is untrusted. The
field displays the traffic class (queue) to which all traffic is directed when in
untrusted mode. The value is fixed to 1.