System information

52
AS/400 IBM Network Station: Techniques for Deployment in a WAN
Table 13. LAN to Twinax Throughput
2.6 Performance Conclusions
The Network Station provides for an excellent working environment. In
general, the Network Station 1000 performs better than the 300, which
performs better than the 100. The following section discusses the
performance of the Network Stations.
Initialization
This section provides the initialization time conclusions for the Network
Servers:
• The Network Station Series 1000 initialization time is about the same as
the 300, except for hardware test, where the 1000 is faster. The 300 is
faster than the 100.
• If possible, consider a boot server for each ring or Ethernet.
• For Releases 1 though 2.5, use BOOTP or DHCP. Do not use NVRAM.
Implementations using BOOTP and DHCP are faster and more reliable.
For Release 3, all three initialization mechanisms are equal in reliability
and performance. BOOTP is slightly (1to 2 seconds) faster than DHCP.
However, NVRAM is less flexible than DCHP or BOOTP because the
entering of IP addresses at the Network Station itself, is required.
• The time to initialize Network Stations depends on many variables, such
as the size of AS/400 system, TFTP block size, number of attached IBM
AS/400 Model 400-2132 (V4R2)
IBM Network Station Series 300 Release 3, using Twinax to AS/400
300Mhz PC NT server using 16MB TR to AS/400
2629 LAN IOP, 6180 Twinax Adapter, 2MB of data. 8K TFTP block
#NS Time
(sec)
AS/400 Util
(%)
AS/400 Throughput
(KB/s)
1 33 9.9 70.1
2 48 9.9 96.4
3 109 10.3 63.7
4 127 10.5 72.9
5 150 11.1 77.1
6 213 11.0 65.2