Cables to Go CDM-570L manual Enable Quality of Service QoS Feature, Configure QoS Rules

Vipersat Configuration

classifier, which looks at traffic that is passed in both directions (Hub-to- Remote and Remote-to-Hub). When an IP packet matches a defined QoS rule, the Remote modem sends an ASR to the VMS that contains the destination address of the detected packet, the defined bit rate, and the policy type. If avail- able hardware and bandwidth exist, the VMS will establish the SCPC carrier automatically.

Enable Quality of Service (QoS) Feature

The Remote must have the QoS FAST feature code, and the QoS feature must be enabled in order for the QoS Switch Detection feature to function. The QoS feature is Enabled/Disabled from the Feature Configuration screen (see figure 2-3).

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 3-35.

Chapter 3 - Using the Command Line Interface (CLI) 3-27