Operation Manual

28 NetWare MultiProtocol Router for ISDN 3.1 Installation and ISDN Configuration Guide
initiate another physical and logical ISDN connection set-up over the
B channel.
Note on bridging and NetWare for SAA:
Since NetWare MultiProtocol Router for ISDN provides SPX Spoof-
ing, it is much more cost-efficient to set up the NetWare for SAA
software at the site where the mainframes are located and let your
clients use IPX/SPX over ISDN up to the NetWare for SAA software
if you use NetWare for SAA for client-to-host access. The pollings of
the NetWare for SAA software to reassure that the session with the
clients is still alive are spoofed by the NetWare MultiProtocol Router
for ISDN. In general, you should only bridge traffic over ISDN if you
really have to, for example if you have two mainframes at two
remote sites that have to exchange data. Whenever routing is possi-
ble, use routing, since it is much more flexible and, as explained
above, can be more cost-effective.
♦♦ Features disabling B channels on the ISDN-Controller itself
for any action
The following features avoid that critical situations, configuration
errors, undesired or too frequent use of B channels cause undesired
tolls:
- Time Restrictions for use of ISDN interfaces.
- Disabling of Outbound Call Processing on ISDN interfaces.
- ISDN Connection Monitor to configure thresholds on ISDN
interfaces. When one of the thresholds is reached, the interface is
barred for outgoing and incoming calls. To be on the safe side,
defaults are given for the parameters.
To treat B channels of an ISDN-Controller differently, MSNs, EAZs
or DDIs are required (see "Multipoint Access and MSNs/EAZs and
SPIDs - BRI" above). For more information, refer to Chapter 14,
"Configuration Interdependencies."
♦♦ Features disabling an ISDN call destination for any action
- ISDN Budget Manager to configure a daily, weekly and monthly
budget for a call destination. When the maximum value is
reached, the call destination is barred for incoming and outgoing
calls.
Introduc.pm6 27.05.97, 21:0328