Quantum and Evolution Series Installation and Operating Handbook
7-113
Edit-Unit-Interface-Terrestrial-IP Ethernet Traffic Mode Screen
Options:
Bridge mode
Select this mode for ordinary Ethernet over satellite bridging, i.e. point-to-point
systems. In this mode, the Ethernet bridge builds up bridging information
based on the replies it receives back, allowing it to ascertain which network
segments devices are located on.
Hub
Sets up a modem to work as a point-to-multipoint bridge hub. All modems at
the hub site should be configured to this mode. Bridging rather than brouting
should be used in point-to-multipoint systems that have a direct return path
via satellite.
Remote
Sets up a modem to work as a point-to-multipoint remote site. All modems
connected to a point-to-multipoint bridge network that are situated at remote
sites (i.e. not on the hub) should be configured to this mode.
Header Compression
This is a bridging point-to-point mode where UDP and IP packet headers are
compressed in order to save satellite bandwidth. The bandwidth savings
depend on the particular packet sizes being used. This feature supports
header compression at terrestrial throughput rates of up to 2Mbps via the
base modem and throughput rates up to 16896kbps when the IP Traffic card
is fitted.
Mesh
The mesh mode supports networks where there is one carrier per site and
multiple Rx-only modems for receiving from other sites. It is implemented as a
variation of the point-to-multipoint bridging mode (hub operation). Partial mesh
networks are also supported.
Ethernet traffic mode:
[Brouting mode]
New: Bridge mode
