Comtech EF Data CDM-570 User Manual
Page 218
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).