System Log - Paradise Datacom Vision Series Installation And Operating Handbook

onto the local terrestrial IP netw ork. Note that the use of point-to- multipoint VLAN filtering
relies on the modem generating and removing VLAN tags and it cannot therefore be used
in situations w here VLAN tags are already present in the data at the point at w hich it is
passed to the modem for transmission.
On the menus, the VLAN ID option is used to set the identifier to be used with VLAN
filtering. 4094 VLAN ids are available.
The Bridge M&C mode ensures the M&C IP interface is part of the Ethernet bridge. If
deselected, then the IP traffi c and M&C are kept separate.
Web Acceleration mode accelerates w eb browsing by prefetching w eb page inline
objects prior to them being requested by the w eb browser. This feature requires the
modem to be fitted w ith an IP traffic card. It also requires a DNS IP address to be set.
Web pages comprise multiple objects w hich are typically fetched one or tw o at a time by
a w eb browser w ithout web acceleration and therefore a full webpage can take many
times the satellite delay to be displayed. The Paradise w eb proxy examines w ebpage
frames as they pass through the modem and pre-fetches all of the content before it is
requested. It is therefore typically available in cache memory at the modem local to the
web browser prior to the browser actually requesting the remaining content.
The Bridge Filtering option forms part of the Brouting traffic mode and controls w hether
the Ethernet br idge filters out all the traffic other than that destined for the local sub-net. If
this option is sw itched off, then it is typically the responsibility of a router on the local
netw ork to filter out unw anted traffic.
The One for one m ode option is applicable only to the G.703 interface. Nor mally the
G.703 input is looped by a relay if pow er is removed. This is to ensure that any other
traffic on the G.703 PCM bearer is not lost by a break in the bearer. How ever, w hen one-
for-one mode is selected, the G.703 output goes high impedance if pow er is removed
allow ing the units 1:1 partner to carry the traffic.
7.4.5

System Log

The system log can be view ed using the View -Log menu tab. An example log is show n
overleaf.
Vision Series Installation and Operating Handbook
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