User's Manual Part 3

03/24/09 - DRAFT
030-300554 Rev. C 164 March 2009
Verizon FiOS Router
(
Model 9100EM
)
User Guide
If you clicked the edit icon in the preceding screen, the Edit Shaping Class screen will appear.
Configure the following fields by entering or selecting the desired values:
Name—The name of the class.
Class Priority—The class can be granted one of eight priority levels, zero being the highest and seven the lowest
(note the obversion when compared to the rules priority levels). This level sets the priority of a class in comparison
to other classes on the device.
Bandwidth—The reserved transmission bandwidth in kilo-bits per second. You can limit the maximum allowed
bandwidth by selecting Specify in the drop-down list. The screen will refresh, adding yet another Kbits/s.
Policy—The class policy determines the policy of routing packets inside the class. Select one of the four options:
Priority—Priority queuing utilizes multiple queues, so that traffic is distributed among queues based on
priority. This priority is defined according to packet's priority, which can be defined explicitly, by a DSCP
value, or by a 802.1p value.
FIFO—The “First In, First Out” priority queue. This queue ignores any previously-marked priority that
packets may have.
Fairness—The fairness algorithm ensures no starvation by granting all packets a certain level of priority.
RED— The Random Early Detection algorithm utilizes statistical methods to drop packets in a
“probabilistic” way before queues overflow. Dropping packets in this way slows a source down enough to
keep the queue steady and reduces the number of packets that would be lost when a queue overflows and a
host is transmitting at a high rate.
Schedule—By default, the class will always be active. However, you can configure scheduler rules in order
to define time segments during which the class may be active. Refer to section 15.21, “Scheduler Rule,” for details
o
n
setting up schedule rules.
Rx Traffic Policing: Allows you to configure the following fields:
Rx Bandwidth This parameter specifies the maximum traffic the policing can receive from the ISP.