Quantum and Evolution Series Installation and Operating Handbook
7-192
Static Route Configuration Screen
Each route consists of a
Destination IP Address, Subnet Mask
and a
Gateway Address
.
There is a checkbox for each route that enables the route when checked. Note that
Paradise does not recommend using DHCP to allocate the modem an M&C IP address
when static routes are being used.
7.4.15 Header Compression
IP, UDP and RTP header compression is supported in accordance with the Robust
Header Compression (ROHC) standard RFC 3095 (profiles 2 and 3). ROHC typically
reduces the 40 bytes of IP, UDP and RTP header, which is typically used with Voice over
IP data, down to between 1 and 3 bytes. Ethernet header compression is also supported
in addition and this reduces 14 bytes of Ethernet frame down to typically 1 byte. Overall
savings from compression from both types of compression (e.g. for a G.729 voice stream)
can be as high as 60%.
It is widely acknowledged that ROHC is the most suitable available header compression
technology for use over satellite and outperforms older technologies such as Compressed
Real Time Protocol (CRTP) and IP Header Compression (IHCP).
Note that because the header compression is applied only over the satellite portion of the
link and results in the original packets being recreated upon receipt, the compression
process is completely transparent.
It is possible to specify which data streams (routes) compression should be applied to –
see the screenshot overleaf. Each route consists of a
Destination IP Address
and
Subnet
