CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Ethernet IP Module Interface MN/CDM570L.IOM
13–12
• Any packet that does not meet a QoS Rule is assigned to the Default Rule and is assigned
a Priority of 9
Maximum Bandwidth – This can also be assigned to a flow to restrict the Maximum Bandwidth
that any particular flow will utilize; otherwise, 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 is otherwise not wanted for forwarding 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:
Protocol Priority
CTRX CITRIX Protocol
FTP File Transfer Protocol
HTTP Hypertext Transfer Protocol
ICMP Internet Control Message Protocol
IP All Internet Protocol
N-IP All Non-Internet Protocol
ORCL ORACLE Protocol
RTP All Real Time Protocol
RTPS Real Time Protocol Signaling
SAP Service Announcement Protocol
SMTP Simple Mail Transfer Protocol
SNMP Simple Network Management Protocol
SQL Structured Query Language Protocol
TCP Transmission Control Protocol
TELN Telnet Protocol
UDP User Datagram Protocol
VDEO Video Real Time Protocol
+ Voice Real Time Protocol
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).
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