Westermo MR Series - Manual (Page 201)

201 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Backup X25 Interface
These parameters are used to specify details of a backup interface to be used if the link layer inter-
face used by PPP is lost. The parameters are as follows:
Calling NUA:
This specifies the calling X.25 address to be used when making outgoing X.25 calls on the
backup interface.
Called number:
This specifies the X.25 call string to be used to make outgoing calls on the backup interface.
Layer 2 interface:
This specifies which layer 2 interface (LAPB or LAPD) is to be used.
Layer 2 interface #:
This parameter specifies which LAPB or LAPD instance to use for the relevant PPP instance.
LCN:
The LCN parameter is the value of the first LCN that will be assigned for outgoing X.25 Calls.
The default is 1027.
LCN direction:
This parameter determines whether the LCN used for outgoing X.25 calls is incremented or
decre mented from the starting value when multiple X.25 instances share one layer 2 (LAPB or
LAPD), connection. The default is “Down” and LCNs are decremented, i.e. if the first call uses
1024, the next will use 1023, etc. Setting the parameter to “Up” will cause the LCN to be incre-
mented from the start value.
Using Text Commands
From the command line the PPP over X25 parameters are set using the same ppp command as for
the standard parameters.
The parameters and values are:
Parameter Values Equivalent Web Parameter
cingnua number Calling NUA
defpack 16, 32, 64, 128, 256, 512, 1024 Default packet size
dorest off, on Restarts
ipmode off, on IP over X.25 mode
l2iface “”, LAPB, LAPD Layer 2 interface
l2nb number Layer 2 interface #
lcn number LCN
lcnup off, on LCN direction: Off=Down On=Up
restdel number Restart delay (s)
Backup X.25 Interface Parameters
bakcingnua number Calling NUA
bakl2iface “”, LAPB, LAPD Layer 2 interface
bakl2nb number Layer 2 interface #
baklcn number LCN
baklcnup off, on LCN direction: Off=Down On=Up
baknum number Called number