TOPEX BYTTON HSDPA
User’s Manual
pag. 40
This feature is especially important for connections where you are charged for the total connection time,
no matter the data traffic: to avoid unnecessary expenses, you should set BYTTON to disconnect when
there is no data traffic.
MTU
: value for the Maximum Transmission Unit. MTU is the largest physical packet size, measured in
bytes, which a network can transmit. Messages larger than this will be fragmented into several packets.
Different networks have different values for MTU, which is set by the network administrator. It is
important to set the optimal MTU value, if it is incorrectly set the data transfers will be slow. The default
MTU size is 576 for many PPP connections, 1024 for a modem connection, 1500 for Ethernet networks,
etc. The same applies for MRU (maximum
receive
unit).
At the data level, the equivalent of MTU is MSS (see further on in the manual), so you must also set this
parameter accordingly.
5.3.4. PPP
Settings for the PPP connection. To ensure high versatility, this page has several of configuration: for
modem, for connection and for routing:
