Allied Telesis AT-S62 - Manual (Page 165)

AT-S62 Management Software Web Browser Interface User’s Guide
Section II: Advanced Operations 165
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 the traffic class
is dropped. However, an 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.