Westermo MR Series - Manual (Page 210)

210 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Backup from LAPD to:
If any of the Switch from parameters has been set to LAPD, and LAPD is unavailable, this param-
eter may be used to specify an alternative interface to switch the X.25 call to. Any of the other
interfaces may be chosen, or “None”. If “None” is chosen, then no backup call will be attempted.
Backup from LAPB0 to:
If any of the Switch from parameters has been set to LAPB 0, and LAPB 0 is unavailable, this
parameter may be used to specify an alternative interface to switch the X.25 call to. Any of the
other interfaces may be chosen, or “None”. If “None” is chosen, then no backup call will be
attempted.
Backup from LAPB1 to:
If any of the Switch from parameters has been set to LAPB 1, and LAPB 1 is unavailable, this
parameter may be used to specify an alternative interface to switch the X.25 call to. Any of the
other interfaces may be chosen, or “None”. If “None” is chosen, then no backup call will be
attempted.
Backup from LAPB2 to:
If any of the Switch from parameters has been set to LAPB 2, and LAPB 2 is unavailable, this
parameter may be used to specify an alternative interface to switch the X.25 call to. Any of the
other interfaces may be chosen, or “None”. If “None” is chosen, then no backup call will be
attempted.
Backup from VXN to:
If any of the Switch from parameters has been set to VXN, and VXN is unavailable, this parame-
ter may be used to specify an alternative interface to switch the X.25 call to. Any of the other
inter faces may be chosen, or “None”. If “None” is chosen, then no backup call will be attempted.
Call prefix:
This parameter specifies the call prefix to inserted in front of the NUA in calls being switched
to LAPD. For example, if the called NUA in the call being received by the LAPB 0 interface
is 56565 and the call prefix is 0242 then the call placed on the LAPD interface is to NUA
024256565. Also, for calls in the reverse direction, if the prefix in the calling NUA matches this
parameter then it is removed from the calling NUA field.
LAPB LCN:
This is the value of the first LCN that will be assigned for outgoing X25 calls on LAPB.
LAPB LCN direction:
This parameter determines whether the LCN used for outgoing X.25 calls on LAPB is incre-
mented or decremented from the starting value.
LAPB Max VCs:
This parameter sets the maximum number of Virtual Circuits (VCs) to be used on an LAPB
inter face. When the maximum has been reached, then the backup call will take place immediate-
ly (or the call will clear if there is no backup call). If this parameter is set to “0”, there is no limit.
B-channel #:
This parameter specifies an ISDN number to be used for calls being switched in the direction of
LAPB 0 or LAPB 1.
LAPB ENQ char:
When this parameter is set to “On”, when an incoming call on LAPB is switched and the unit
connects to it, the X.25 switch sends a data packet on the LAPB X.25 SVC containing the ENQ
character.