![background image](http://html1.mh-extra.com/html/racom/ripex/ripex_user-manual_3186409132.webp)
NOTE: Max. RF power for RipEX-470 is 8 W. (Even if there was 10W in list box for fw ver. 1.3.x.x
and older)
■
Optimization*
List box: On, Off
Default = Off
Optimization is applicable in Router mode for packets directed to Radio channel. It watches packets
on individual radio links and optimizes both the traffic to the counterpart of a link and the sharing of
the Radio channel capacity among the links.
On an individual link the optimizer supervises the traffic and it tries to join short packets when op-
portunity comes. However in case of heavy load on one link (e.g. FTP download) it splits the con-
tinuous stream of packets and creates a window for the other links. To minimize the actual load,
Zlib compression (with LZ77 decimation and Huffman coding) and other sophisticated methods are
used.
There is also a "stream" compression, which is very effective for data streams consisting of similar
packets. E.g. when there are many remotes behind a single repeater, packets on the most loaded
hop between the repeater and the central unit get very efficiently compressed.
NOTE: when there is only one direction traffic, there should be also routing for ETH IP addresses
set in RipEX routing tables to make stream compression effective.
In addition a special TCP optimiser is used for TCP/IP connections. It supervises every TCP session
and eliminates redundant packets. It also compresses TCP headers in a very efficient way. The
overall effect of the Optimization depends on many factors (data content, packet lengths, network
layout etc.), the total increase of network throughput can be anything from 0 to 200%, or even more
in special cases.
NOTE: Apart from this Optimization, there is an independent compression on the Radio channel,
which works in both Operating modes, Bridge and Router. This compression is always On.
■
Encryption
AES 256 (Advanced Encryption Standard) can be used to protect your data from an intrusion on
Radio channel. When AES 256 is On, control block of 16 Bytes length is attached to each frame
on Radio channel. AES requires an encryption key. The length of key is 256 bits (32 Bytes, 64 hexa
chars). The same key must be stored in all units within the network.
List box: Off, AES 256
Default = Off
When AES 256
Key mode
List box: Pass Phrase, Manual
Default = Pass Phrase
Pass phrase
It is not necessary to fill in 32 Bytes of hexa chars in order to set the encryption key. The key
can be automatically generated based on a Pass phrase. Fill in your Pass phrase (any
printable ASCII character, min. 1 char., max. 128 char.). The same Pass phrase must be set
in all units within the network
Manual
The key can be configured manually (fill in 32 Bytes of 64 hexa chars) or it can be randomly
generated using Generate button. The same key must be in all units within the network, i.e.
it has to be generated only in one unit and copied to the others.
■
MTU [bytes]*
Default = 1500 Bytes [70 - 1500] (max. packet size)
RipEX Radio modem & Router – © RACOM s.r.o.
132
Advanced Configuration
Содержание RipEX
Страница 2: ......
Страница 42: ... DQ Data Quality Min 180 PER Packet Error Rate Max 5 RipEX Radio modem Router RACOM s r o 42 Network planning ...
Страница 222: ...Fig 10 3 ATEX Certificate RipEX 2 3 RipEX Radio modem Router RACOM s r o 222 Safety environment licensing ...
Страница 223: ...Fig 10 4 ATEX Certificate RipEX 3 3 223 RACOM s r o RipEX Radio modem Router Safety environment licensing ...