Vidicode V-Tap Manual page 20

.DF = Disable Type Filter (default IP & ARP packets only)
This hardware filter is very fast and looks at two bytes in all Ethernet
packets, called the EtherType. Active by default, only two protocols
are let through, namely Internet Protocol version 4 (IPv4) and the
Address Resolution Protocol (ARP). Both are always needed for
normal operation. All other protocols from the Internet Layer are not
needed when recording normal VoIP calls.
Disabling this filter will increase the amount of stored redundant
data a lot, when the V-Tap is connected to a PC LAN or trunk.
.LX<size> = Maximum Data Size in packets (default 1024)
This sets the maximum length of the data portion inside all
communicated packets on the network for Tunnel, FTP and Web.
The length excludes the Ethernet, IP and TCP headers, which are 54
bytes together. The maximum length of any packet on the network
can be 1514 bytes, so that leaves max 1460 bytes for the data part.
The default length is based on optimal performance when sending
data from an SD card.
There is probably no need to ever change this parameter when the
Tunnel is sending on a normal LAN, but when sending directly on a
WAN or very busy LAN, the length might be decreased for better
performance (try .LX512).
.LS<num> = LAN System Service Timer (default 18 = fastest)
The default value is for fastest network speed. When a lot of V-Tap
units are sending to the same Tunnel server, it might be better to
lower the speed to prevent an overload of streams.
The values 65 and 1 can be used for slow and slower sending.
The values 50 and 18 (same as 0) can be used for faster sending.
.LH = Force Half Duplex on all ports
.LM = Force 10 Mbps on all ports
.LG = Force 100 Mbps on all ports (VoIP-3 only)
These settings will result in much slower network operation. It may
be used for test purposes.
Default, the ports are on Full Duplex operation with 100 Mbps speed
(1000 Mbps for the VoIP-3).
V-Tap VoIP Manual EN v3.23 Aug 2021 © 2017-2021 Vidicode 20