Comtech EF Data CDM-IP 300L - Manual (Page 177)

CDM-IP 300L IP-Centric Satellite Modem Rev. 1
CD/CDMIP300L.IOM
151
6.2.1.11 H
EADER
C
OMPRESSION
R
EFRESH
R
ATE
The Header Compression Refresh Rates are configured from the Administration page.
Menu Options/Fields Entry Description
Header comp refresh rate (in pkts)
for UDP/RTP1 H Selects how often a single, full header
UDP/RTP1 packet is transmitted with Header
Compression enabled.
Header comp refresh rate (in pkts)
for UDP U Selects how often a single, full header UDP
packet is transmitted with Header Compression
enabled.
Header comp refresh rate (in pkts)
for all others O Selects how often a single, full header packet is
transmitted with Header Compression enabled
(for all other types of IP headers).
The Header Compression Refresh Rates determines how many compressed header
packets will be sent before a single full header packet is sent. Some compressed header
traffic could be lost during deteriorated satellite link conditions. Sending a full header
packet will allow the return of the traffic stream. Refresh rates from 1 to 600 can be
individually selected for UDP/RTP1, UDP and all other IP headers. The Refresh Rate can
be decreased for poor satellite link conditions or increased to further reduce overhead.
6.2.1.12 P
AYLOAD
C
OMPRESSION
R
EFRESH
R
ATE
The Payload Compression Refresh Rates determines how many compressed payload packets will
be sent before a single full payload packet is sent. Some compressed payload traffic could be lost
during deteriorated satellite link conditions. Sending a full payload packet will allow the return
of the traffic stream. Refresh rates from 1 to 600 can be individually selected. The Refresh Rate
can be decreased for poor satellite link conditions or increased to further reduce overhead.