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AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manual
Field
Description
Interface
Select the WAN interface to configure the QoS for outgoing packets; LAN interface cannot be
selected as VLAN is currently supported on the WAN side only.
Unclassified
Packet
Some locally generated packets might not have been classified and thus do not have a CoS
value, such as PPP control packet and ARP packet. You can define the CoS for all unclassified
outgoing packets on layer 2 using this field, which will then pick up the user priority bits based
on the mapping rules you create. The selections are (in the order of descending priority):
CoS1, CoS2, CoS3, CoS4, CoS5 and CoS6. The default value is CoS1 (recommended).
Class of
Service
The selections are (in the order of descending priority): CoS1, CoS2, CoS3, CoS4, CoS5 and
CoS6.
User Priority
The selections are 0, 1, 2, 3, 4, 5, 6 and 7.
Layer 3Egress
Egress Layer 3 enables you to map CoS to ToS so that the priority marking of outgoing packets can be
carried over to the IP network.
Figure 29: Layer 3 Egress
Field
Description
Interface
Select the WAN interface to configure the QoS for outgoing packets; LAN interface
cannot be selected as VLAN is currently supported on the WAN side only.
Default
Non-IP
Locally generated packets (such as ARP packets) do not have a CoS marking. You can
define the CoS for all unclassified outgoing packets on layer 3 using this field. The
selections are (in the order of descending priority): CoS1, CoS2, CoS3, CoS4, CoS5 and
CoS6. The default value is CoS1 (recommended).
Class of
Service
The selections are (in the order of descending priority): CoS1, CoS2, CoS3, CoS4, CoS5
and CoS6.
Translated
TOS
The Type of Service field takes values from 1 to 255. The selections are 0, 1, 2, 3, 4, 5, 6
and 7.
Ingress
Ingress enables you to configure QoS for packets as soon as they come into the router. The domain
mappings are converted to CoS (the common language) so that the priority marking is carried over.
