Westermo RedFox Series - Manual (Page 900)

Westermo OS Management Guide
Version 4.17.0-0
(UDP/TCP) port to listen to.
In Server and in AT Command modes, the default is to listen to TCP port
9000, and to accept Serial Over IP traffic on any interface. In Server
mode, an additional listening port may be set to allow support for e.g.
failover. See setting Secondary Listen Port below.
In Peer mode, the default is to listen to UDP port 9000, and to accept
serial over IP traffic on any interface. IP Unicast, broadcast
4 , and mul-
ticast (for defined multicast groups, see below) are accepted in Peer
mode.
Default: Interface: ”Any” (incoming traffic accepted via any inter-
face), and (UDP/TCP) port: 9000
– Secondary Listen Port: Additional local TCP port to listen to. This setting
is only applicable in (TCP) Server mode.
For more information, see setting Secondary mode below.
Default: Disabled
– Secondary Mode: If an additional local TCP port is set up (see Secondary
Listen Port above), the concurrent access to the serial port (collision
handling) is controlled by altering this option.
Available options are:
✯ Slotted: Where the access to the serial port is interleaved between
the TCP-sessions. When data is received from a TCP-session, the
serial port is reserved for the TCP-session for a timeslot with a length
of timeout ms. Data received during this time period is sent to the
TCP-session with the reservation only. If data is received from the
secondary TCP-session, the data will be read when the time period
has ended.
If data is received from the serial port after the timeout and no new
data is available from the TCP-sessions, this data will be forwarded
to the last TCP-session that was active.
If data is available from both TCP-sessions at exactly the same time,
data is first received from the primary session, then the secondary.
4 Both IP subnet broadcast packets (e.g., 192.168.1.255 on a 192.168.1.0/24 network), and data
link IP broadcast (255.255.255.255) are accepted if received on the appropriate interface.
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