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Configuring Quality of Service
EdgeSwitch
™
Administration Guide
Ubiquiti Networks, Inc.
Diffserv Policy Configuration
Use the Diffserv Policy Configuration page to add or remove a DiffServ policy-class association and to configure
the policy attributes. The policy attributes identify the action or actions taken when a packet matches a class rule.
To display the page, click QoS
>
Diffserv
>
Policy Configuration in the navigation menu.
Diffserv Policy Configuration
Diffserv Policy Configuration Fields
Field
Description
Policy
The name of the policy. To add a class to the policy, remove a class from the policy, or configure the
policy attributes, you must first select its name from the menu.
Type
The traffic flow direction to which the policy is applied.
Class
The DiffServ class or classes associated with the policy. The policy is applied to a packet when a class
match within that policy-class is found.
Policy Attribute Details
The policy attribute types and their associated values that are configured for the policy.
Add Policy Attribute window – Click Add Attribute to open this window and define the policy attributes for the selected policy. To add
and configure policy attributes, select the check box for the attribute type and configure the fields for the attribute values.
Assign Queue
Select this option to assign matching packets to a traffic queue. Use the Queue ID Value field to select
the queue to which the packets of this policy-class are assigned.
Drop
Select this option to drop packets that match the policy-class.
Mark CoS
Select this option to mark all packets in a traffic stream with the specified Class of Service (CoS) queue
value. Use the Class of Service field to select the CoS value to mark in the priority field of the 802.1p
header (the only tag in a single tagged packet or the first or outer 802.1Q tag of a double VLAN tagged
packet). If the packet does not already contain this header, one is inserted.
Mark CoS as Secondary
CoS
Select this option to mark all packets in a traffic stream with the specified secondary CoS queue
number. Use the Class of Service field to select the CoS value to mark in the priority field of the 802.1p
header in the secondary (inner) 802.1Q tag of a double VLAN tagged packet. If the packet does not
already contain this header, one is inserted.
Mark IP DSCP
Select this option to mark all packets in the associated traffic stream with the specified IP DSCP value. Then,
use one of the following fields to configure the IP DSCP value to mark in packets that match the policy-class:
•
IP DSCP Keyword
The IP DSCP keyword code that corresponds to the IP DSCP value. If you select
a keyword, you cannot configure an IP DSCP Value.
•
IP DSCP Value
The IP DSCP value.
Mark IP Precedence
Select this option to mark all packets in the associated traffic stream with the specified IP Precedence
value. Then, select the IP Precedence Value to mark in packets that match the policy-class.
Mirror Interface
Select this option to copy the traffic stream to a specified egress port (physical or LAG) without bypassing
normal packet forwarding. This can occur in addition to any marking or policing action. It may also be specified
along with a QoS queue assignment. Use the Interface menu to select the interface to which traffic is mirrored.
