System information

Using Flash Cards with the Network Station
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In the event of a Flash card failure, an identical secondary card should be
distributed to the user, along with the first.
• The NVRAM settings cannot be easily changed from local Flash boot to
server boot.
To enable the IBM Network Station to use the Flash card and boot locally,
the settings in NVRAM must be modified. It may not be a simple task for
the end user to change these settings back in the event of a Flash card
failure.
• There is no support in this scenario for the IBM Network Station Series
1000.
The Series 1000 requires a different kernel and some different module
files that do not fit on an 8MB Flash card. You can, of course, use a larger
Flash card and support the IBM Network Station Series 100/300 and 1000
series.
3.2.4 Scenario Network Configuration
In this scenario, the IBM Network Station is located at a remote location,
distant from the central site which houses the main AS/400, S/390 and
RS/6000 systems. The remote location is in the same site, city, or in another
geography. There is no local access to the central site systems.
The link from the end user to the central site that is the bottleneck. That is,
the communication link is adequate for small bursts of information such as
display changes, but has limited file transfer capability due either to the
speed, or the utilization on the communication link.
The WAN link is any type, ranging from dial up to frame relay. The actual type
of link is not as important in this scenario as long as it can carry TCP/IP
traffic.
Figure 12 on page 72 shows the central systems located at the central site
and an IBM Network Station located remotely over a slow or possibly
congested WAN link.
In this scenario, we used the reserved class A TCP/IP addressing scheme of
10.1.1.X with a subnet mask value of 255.255.255.0, which allows up to 254
devices on this network.