HP DECnet-Plus for OpenVMS Alpha and OpenVMS I64, Version 8.3
HP DECnet-Plus for OpenVMS Alpha and OpenVMS I64, Version 8.3 SPD 50.45.19
It is important to note that the rate at which user data
can be transmitted (throughput) over a communications
line can sometimes approach, but will never exceed, the
actual line speed. This is because the actual throughput
is a function of many factors, including the line quality,
protocol overhead, topology, and network application(s),
as well as the factors cited in this section.
The performance of DECnet-Plus is comparable to the
performance of DECnet Phase IV. However, in a sym-
metrical multiprocessing environment the performance
of DECnet-Plus can be far superior to that of DECnet
Phase IV. With DECnet Phase IV the NETACP process
can only execute on the primary CPU. With DECnet-
Plus the NET$ACP process can be scheduled on any
available CPU, resulting in improved performance.
Standards Conformance
HP DECnet-Plus for OpenVMS has been designed and
implemented to conform to the following standards:
• ISO
— 4335
— 7776, 7809
— 8073, 8208, 8327, 8473, 8571, 8650, 8802-2,
8802-3, 8823, 8878, 8881
— 9314, 9542, 9041
— 3309
• EN 41 204, 41 205, 41 206, 41 207
• CCITT Recommendation X.25 (1978, 1980, or 1984)
using the LAPB or LAPBE variants of the X.25 packet
level and data link protocols (Alpha-only)
• U.S. GOSIP V2.0
• U.K. GOSIP V4.0
Contact your local HP office for the most recent confor-
mance certificates.
Documentation
The documentation for HP DECnet-Plus for OpenVMS
is supplied as follows:
• Online versions of the documentation are shipped as
part of the OpenVMS Online Documentation Library
on CD-ROM and on the OpenVMS layered product
CD-ROM.
• Printed copies of the documentation are available as
a separate order.
• An optional X.25 documentation set covering ac-
counting, X.29, and X.25 Mail is available as a sep-
arate order.
• New features are documented extensively in the Re-
lease Notes.
Installation
DECnet-Plus software is customer installable. Installa-
tion services are available for customers who request
installation of the software product by an experienced
HP software specialist.
HP requires that a customer’s first use of X.25 include
HP Installation Services. These services provide for in-
stallation of the software product by an experienced HP
software specialist.
Customer Responsibilities
Before HP Services can install the software, the cus-
tomer must:
• Ensure that the system meets the minimum hard-
ware and software requirements (as specified in the
relevant SPDs)
• Prior to installing HP hardware or software, obtain,
install, and demonstrate as operational any modems
and other necessary customer equipment or facilities
to which HP’s communications hardware or software
will connect
• Designate one adjacent node to verify installation
and connectivity
• Make available for a reasonable period of time, as
mutually agreed upon by HP and the customer,
all hardware communications facilities and terminals
that are to be used during installation.
Delays caused by any failure to meet these responsibil-
ities will be charged at the prevailing rate for time and
materials.
Installation of HP DECnet-Plus for OpenVMS consists
of the following tasks:
• Verify that all components of HP DECnet-Plus for
OpenVMS have been received.
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