Comtech EF Data CDM-570/570L Vipersat - Manual (Page 72)

Vipersat Configuration
3-36 Vipersat CDM-570/570L User Guide
Configure QoS Rules
The Vipersat CDM-570/570L is capable of performing automatic switching
based on the QoS rules for a Remote modem. QoS rules can be assigned to
different flow types that are user-defined by any combination of traffic type
protocol (FTP, UDP, RTP, etc.), source/destination IP (specific or range), and/
or Layer 3 source/destination port.
The Vipersat QoS Switching feature is designed to manage single, specific
sessions or flow types, such as a UDP video stream targeted to a specific port.
When defining QoS rules for QoS based switching, it is best to make them as
specific as possible so as to avoid unintended or multiple sessions/flows being
generated with that rule. A QoS rule that creates multiple flows will result in
poor switching performance. With voice traffic, for example, prioritize by using
the VOCE protocol rather than prioritizing with RTP or UDP.
From the Main Menu for the Remote modem, enter Q to access the QoS
Configuration screen, as shown in figure 3-42.
Figure 3-42 QoS Configuration screen
Enter M at the command prompt to designate one of four Modes of QoS opera-
tion (figure 3-43):
• Rule Max/Priority – QoS rules based on maximum bandwidth and
priority
• Rule Min/Max – QoS rules based on minimum and maximum bandwidth
• Diff Serv – QoS rules based on Differentiated Services settings
• VLAN – QoS rules based on the user priority field in the VLAN header
Figure 3-43 QoS Mode prompt