User manual

Chapter 2 - Managing a Single Device/Cell Service Parameters Page
AlvariCRAFT Device Manager 131 User Manual
2.20.2.2 UDP Port Ranges/TCP Port Ranges
The UDP/TCP Port Ranges sections enables managing port ranges to be used as
priority classifiers when the UDP/TCP Port Ranges Prioritization Option is set to
enable prioritization based on the applicable port type. All packets whose
destination is included in the list will be routed to the High queue. All other
packets will be routed to the Low queue (unless they were assigned a High priority
by another classifier).
The UDP/TCP Port Ranges sections include the following components:
UDP/TCP Port Range
Prioritization
The UDP/TCP Port Ranges Prioritization defines whether port ranges
based prioritization is enabled or disabled. The following options are
available:
 Disable
 UDP only
 TCP Only
 UDP and TCP
RTP/RTPC Prioritization Voice over IP is transported using Real Time Protocol (RTP). The
Real Time Control Protocol (RTCP) is used to control the RTP. When
an application uses RTP/RTCP, it chooses for destination ports
consecutive numbers: RTP port is always an even number, and the
port with the odd number following it will be assigned to RTCP.
The available options are:
 RTP and RTCP
 RTP Only
If the administrator selects to prioritize only the RTP packets, then all
the packets with an odd numbered destination port will always have
Low priority. The packets with an even number for destination port will
receive High priority, if the port number is included in the specified
ranges.
If the administrator selects to prioritize both RTP and RTCP packets,
then all packets whose destination port number is included is in the
specified ranges will receive High priority.