209
6620-3201
4.89 Confi gure
>
X25
>
NUA/NUI–>Interface
Using the Web Page(s)
The
Confi gure
>
X25
>
NUA/NUI–>Interface
pages contain tables that allows you to enter a series
of X.25 NUA or NUI values along with IP addresses/Ports to which they should be mapped if you need
to override the default settings in the
Confi gure
>
X25
>
X25 Switch
page.
So, if in the X.25 Switch con
fi
guration you had con
fi
gured the unit to switch from LABP 0 to TCP,
the IP Address and Port values would normally be determined from XOT Remote IP address and
IP stream port parameters. However, having set up the NUA/NUI to IP addresses table as shown in
the example above, if an X.25 call with NUA of value “222” is received on LAPB 0 it will be switched
onto a TCP socket using IP address “1.2.3.4” on port 45 instead of those settings con
fi
gured on the
Confi gure
>
X25
>
X25 Switch
page.
Similarly, NUI’s can also be matched and in this example a call with NUI of value “test” will be
switched onto a TCP socket using IP address “100.100.100.1” on port 678.
All 3 comparison
fi
elds NUA, NUI and Call Data can use the wildcard matching characters “?” and
“*”. In the example shown above when an X.25 call is received with either the NUA having “1234”
followed by any 2 digits or a call being received with call user data with any 4 characters followed by
“aa” then the call is switched to a TCP socket on address 100.100.100.52 on port 4001.
When a connection has been successfully established and data is being switched from the X.25 call
to the socket and from the socket to the X.25 connection, it can be terminated by either the socket
closing or the X.25 call clearing.
If the connection terminates because of an incoming X25 Call Clear packet then the switch will
terminate the socket connection. If the connection terminates because the socket is closed then the
switch will clear the X.25 call by transmitting a CALL CLEAR packet.
Using Text Commands
From the command line, use the
nuaip
command to con
fi
gure or display NUA/NUI to IP mappings.
To display current mappings enter the following command:
nuaip <n> ?
where
<n>
is the table entry number, i.e. 0 to 255. To change the value of a
parameter use the following command:
nuaip <n> <parameter> <value>
The parameters and values are:
Parameter
Values
Equivalent Web Parameter
buswto
0-10 (see table below)
Backup Interface
cud CUD
Call
Data
ip_port number
IP
Port
ipaddr IP
address IP
Address
nua
NUA NUA
nui NUI
NUI
pid hex
numbers
PID
swto
0-10 (see table below)
Interface
