Allied Telesis AT-S62 - Manual (Page 339)

AT-S62 Command Line User’s Guide
339
the traffic. However, no unused tokens will
accumulate in the bucket. If the traffic
increases, the excess traffic will be discarded
since no tokens are available for handling the
increase.
If the traffic is below the maximum
bandwidth, unused tokens will accumulate in
the bucket since the actual bandwidth falls
below the specified maximum. The unused
tokens will be available for handling excess
traffic should the traffic exceed the maximum
bandwidth. Should an increase in traffic
continue to the point where all the unused
tokens are used up, packets will be discarded.
Unused tokens accumulate in the bucket
until the bucket reaches maximum capacity,
set by this parameter. Once the maximum
capacity of the bucket is reached, no extra
tokens are added. The range is 4 to 512 Kbps.
This parameter should be used with the
MAXBANDWIDTH parameter. Specifying a token
bucket size without also specifying a maximum
bandwidth serves no function.
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
option 9, Remark Priority, to Yes.
If you specify a new priority in a flow group and a
traffic class, the value in the flow group overrides
the value in the traffic class.
remarkpriority Replaces the user priority value in the packets
with the new value specified in option 4, Priority,
if set to Yes. If set to No, which is the default, the
packets retain their preexisting priority level
when they leave the switch.