Allied Telesis AT-S62 - Manual (Page 147)

AT-S62 Web Browser Interface User’s Guide
Section II: Advanced Operations 147
Remark Priority
Replaces the user priority value in the packets with the new value
specified in the Priority parameter, if set to Yes. If set to No, which
is the default, the packets retain their preexisting priority level
when they leave the switch.
Description
Specifies the traffic class description. A description can be up to 15
alphanumeric characters, including spaces.
Exceed Remark Value
Specifies the DSCP replacement value for traffic that exceeds the
maximum bandwidth. This value takes precedence over the DSCP
value. The default is 0.
Max Bandwidth
Specifies the maximum bandwidth available to the traffic class.
The range is 0 to 1016 Mbps.
This parameter determines the maximum rate at which the
ingress port accepts packets belonging to this traffic class before
either dropping or remarking occurs, depending on the Exceed
Action parameter. If the sum of the maximum bandwidth for all
traffic classes on a policy exceeds the (ingress) bandwidth of the
port to which the policy is assigned, the bandwidth for the port
takes precedence and the port discards packets before they can
be classified.
The value for this parameter is rounded up to the nearest Mbps
value when this traffic class is assigned to a policy on a 10/100
port, and up to the nearest 8 Mbps value when assigned to a
policy on a gigabit port (for example, on a gigabit port, 1 Mbps is
rounded to 8 Mbps, and 9 is rounded to 16).
Note
If this option is set to 0 (zero), all traffic that matches that traffic class
is dropped. However, a access control list can be created to match
the traffic that is marked for dropping, or a subset of it, and given an
action of permit, to override this. This functionality can be used to
discard all but a certain type of traffic.
Priority
Specifies the priority value in the IEEE 802.1p tag control field that
traffic belonging to this traffic class is assigned. Priority values
range from 0 to 7 with 0 being the lowest priority and 7 being the
highest priority. Incoming frames are mapped into one of four
Class of Service (CoS) queues based on the priority value.
If you want the packets to retain the new value when they exit the
switch, change the Remark Priority parameter to Yes.