Comtech EF Data CDM-570 Installation And Operation Manual page 209

CDM-570/570L Satellite Modem with Optional IP Module
IP Module Ethernet Interface Overview
Priority 1 packets in the Queue, and so on. Any latency critical traffic, such as VoIP/RTP
should always be assigned Priority 1.
Maximum Bandwidth - This can also be assigned to a flow to restrict the Maximum
Bandwidth that any particular flow will utilize, or the default of no bandwidth restriction
can be selected.
Filtering - QoS also allows specific flows to be designated as "filtered," so the IP
Module will discard traffic that the user does not want to forward over a satellite link.
QoS Rule Hierarchy - It is quite possible to have traffic that meets the definitions of
several QoS Rules. All traffic will be classified into the first QoS Rule that is a match, or
fall into the Default Rule. The most specific QoS Rule will always be first. For example,
a QoS Rule that identified a Source and Destination IP Address would be assigned ahead
of a rule that just defined RTP protocol. QoS Rules that have the same amount of
variables defined are sorted as follows:
1. Having a Protocol defined.
2. Source IP Address or subnet defined.
3. Destination IP Address or subnet defined.
4. Source Port defined (lowest Port number first).
5. Destination Port defined (lowest Port number first).
The IP Module will sort each QoS rule as they are added and the QoS Configuration
display will be updated to reflect the order with which rules are matched.
QoS Statistics - Every QoS Rule defined can be monitored to see the traffic flow for
each Queue. These statistics will display the traffic sent in each Queue, the amount of
dropped traffic, and the number of Active Flows.
Protocol Priority:
a. VOCE –
b. VDEO –
c. RTPS –
d. RTP –
e. FTP –
f. HTTP –
g. TELN –
h. SMTP –
i. SNMP –
j. SQL –
k. ORCL –
l. CTRX –
m. SAP –
n. UDP –
o. TCP –
p. IP –
q. N-IP –
Voice Real Time Protocol
Video Real Time Protocol
Real Time Protocol Signalling
All Real Time Protocol
File Transfer Protocol
Hypertext Transfer Protocol
Telnet Protocol
Simple Mail Transfer Protocol
Simple Network Management Protocol
Structured Query Language Protocol
ORACLE Protocol
CITRIX Protocol
Service Announcement Protocol
User Datagram Protocol
Transmission Control Protocol
All Internet Protocol
All Non-Internet Protocol
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Revision 3
MN/CDM570L.IOM