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Notes: AIR CANADA PROPOSAL
Names: »2067A «
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DOCUMENT II EXECUTIVE SUMMARY Apr. 29,
1982
A̲I̲R̲ ̲C̲A̲N̲A̲D̲A̲ ̲D̲A̲T̲A̲ ̲N̲E̲T̲W̲O̲R̲K̲ ̲P̲R̲O̲P̲O̲S̲A̲L̲
E̲X̲E̲C̲U̲T̲I̲V̲E̲ ̲S̲U̲M̲M̲A̲R̲Y̲
G̲E̲N̲E̲R̲A̲L̲
Christian Rovsing are pleased to submit to Air Canada
a proposal for its new Data Network in full accordance
with Air Canada's Request for Proposal CEP 2026-Q Publication
2001, revision 1.
To satisfy Air Canada's requirements for up-to-date
and state of the art equipment and continued service
support after installation, Christian Rovsing have
joined force with CNCP Telecommunications. It is understood
that should Christian Rovsing be the selected candidate
for the proposed Air Canada new Data Network, it will
act as Prime Contractor with full logistic Service
support provided by CNCP as Sub-Contractor.
The benefits which will be obtained through this partnership
are twofold: It will provide Air Canada with Christian
Rovsing's high technology equipment and advanced system's
design; and it will ensure the installation of the
system and its subsequent support service through the
proven capability of CNCP maintenance personnel.
Appended to this summary as Attachment I is an excerpt
of a letter received from CNCP which leaves no doubt
about the spirit of co-operation and team work which
has already been demonstrated between the two organisations.
It also reinforces the statement previously made where
the combined efforts of the two forces will satisfy
Air Canada's commitments to operate successfully its
proposed data network.
For more than five years, a devoted effort at Christian
Rovsing has been made in the field of data communication.
The company has implemented the following programs
as main contractor:
o LMENET -
private multivendor data communication network
for the international telephone company L.M.
Ericsson.
o FIKS -
an integrated defense communications network
with integrated message switching and circuit
switching for the Danish Depatment of Defense.
o CRISP -
a UK based packet switched data network.
o CAMPS -
computer aided message switching system to
prepare, dispatch and receive messages for
all major European NATO headquarters.
Together, these programs form the foundation of the
proposed ACDN.
Christian Rovsing will be able to provide Air Canada
with a lifetime communications architecture for its
new Data Network. The architecture is based on a highly
modular hardware concept - the company…08…s own CR80 which
together its layered software structure enables the
Air Canada Data Network to evolve with international
telecommunications standards and those brought forward
by mainframe vendors. providing investment protection.
Along with the technical know-how acquired through
these projects, Christian Rovsing have gained significant
experience in project management, and we pride ourselves
on our ability to meet the time and financial demands
of large projects.
The decision to bid the Air Canada Data Network represents
a definite commitment on the part of Christian Rovsing
to devote its resources and technological talent to
ensure successful implementation of the system in Canada.
It represents a deliberate desire by the company to
participate in this specialized area of high technology.
The Air Canada Network provides an oportunity to the
capabilities represented in Christian Rovsing which
combined with the CNCP telecommunications experience
and direct participation of Air Canada staff in the
conduct of the program will lead to a successful project.
T̲H̲E̲ ̲P̲R̲O̲P̲O̲S̲A̲L̲
The proposal is submitted in three documents:
D̲O̲C̲U̲M̲E̲N̲T̲ ̲I̲:̲ ̲ ̲C̲O̲M̲M̲E̲R̲C̲I̲A̲L̲ ̲P̲R̲O̲P̲O̲S̲A̲L̲
Chapter 1: Price Proposal
Chapter 2: Contractual Provisions
Chapter 3: Corporation Information
D̲O̲C̲U̲M̲E̲N̲T̲ ̲I̲I̲:̲ ̲ ̲E̲X̲E̲C̲U̲T̲I̲V̲E̲ ̲S̲U̲M̲M̲A̲R̲Y̲
D̲O̲C̲U̲M̲E̲N̲T̲ ̲I̲I̲I̲:̲ ̲ ̲T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲P̲R̲O̲P̲O̲S̲A̲L̲
Chapter 1: Introduction
Chapter 2: Requirements Analysis and Compliance
Statements
Chapter 3: Proposed Solution
Chapter 4: Operator Interface
Chapter 5: Equipment Characteristics
Chapter 6: Software Characteristics
Chapter 7: RMA
Chapter 8: Environmental Characteristics and Common
Aspects
Chapter 9: Support
Chapter 10: Glossary
The following appendices are included:
Appendix A CHRISTIAN ROVSING A/S CORPORATE HISTORY,
ORGANISATION, AND FACILITIES
Appendix B MAJOR CONTRACT AWARDS
Appendix C MANUFACTURING ORGANISATION AND PROCEDURES
Appendix D MODELLING DOCUMENTATION
Appendix E CNCP's RESPONSE TO AIR CANADA's RFI
Appendix F FUNCTIONAL SUMMARY OF THE AUTOMATED
TEST & EMULATION SYSTEM
Appendix G THE CR OFFICE SYSTEM PROJECT
Appendix H STANDARDS
Appendix U Definition of Tables for Univac HOST
and Terminal Interfaces
C̲H̲R̲I̲S̲T̲I̲A̲N̲ ̲R̲O̲V̲S̲I̲N̲G̲:̲ ̲T̲h̲e̲ ̲C̲o̲m̲p̲a̲n̲y̲
Christian Rovsing is Denmark's fastest growing, high
technology computer and aerospace electronics company.
Founded in 1963, the company employs approximately
800 people, 50% of whom are professional engineers
and technicians.
In recent years Christian Rovsing has experienced an
unprecedented growth rate of approximately 50% annually.
Its 1982 gross revenue forecast exceeds 60 million
Dollars. One of the key factors of this rapid growth
is undoubtly the success in marketing its advanced
CR80 computer which is embedded in most systems designed
and engineered by Christian Rovsing.
One of the company's major activities is in the design
and support of Communications Systems Networks for
both military and commercial applications. In most
of these installations, new packet switching schemes
form an integral part of the systems architecture.
Additionally, cryptographic encoder techniques are
used for purposes of system security and network partitioning
requirements.
Christian Rovsing is also involved in Defence Computer
Communications activities, and a number of these sophisticated
digital switching systems have been provided to NATO
in recent years.
Finally, Christian Rovsing is one of the major supplier
to the European Space Program. It also provides the
Fire Control Computer for the F-16 Fighter Aircrafts
manufactured under contract for Delco Electronics.
Because all of these systems demand rigorous Quality
Assurance procedures and security checkouts, Christian
Rovsing have built a team of high skilled managerial
and technical personnel to meet these challenges successfully.
The company also possesses the discipline to meet
its commitments in a timely efficient fashion.
T̲E̲C̲H̲N̲I̲C̲A̲L̲ ̲S̲U̲M̲M̲A̲R̲Y̲
I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
Christian Rovsing's technical team has thoroughly studied
Air Canada's Request for Proposal, and we are proposing
a new Data Network Configuration that is compliant
with all requirements. The proposed network provides
the desired partitioning described in the RFP with:
o Three Nodes
o Geographically backed up Network Control Centre
o A Gateway to connect the existing ACNC
o A Network Management Host
o An Electronic Mail Host.
The underlying qualities of the new Air Canada Data
Network proposed by Christian Rovsing are:
INVESTMENT PROTECTION
EXPANDABILITY
FULL SUBSCRIBER SERVICES
HIGH AVAILABILITY.
Investment protection is ensured by providing access
to existing main frames - IBM, UNIVAC, and HONEYWELL
- and by provision for addition of hosts from other
vendors, whether mainframe or minicomputer. Heterogeneous
terminal populations and networks, existing and future
additions, may also be accommodated.
Expandability is achieved by addition of existing modules
to the multiprocessing configuration which implements
the backbone network and allows expansion well beyond
1991 within the proposed framework.
The proposed software organised in accordance with
the layered philosophy reflected in the OSI reference
model facilitates future amendments or replacements.
Required subscriber services are effected by fully
exploiting available standard software and firmware
for host and terminal device support.
High availability is achieved by fault tolerant, redundant
hardware and through a unique network control capability
- yielding optimum service.
The ACDN supports datagrams and virtual connections.
According to overall user need, the best mixture of
network capacity and speed is provided, while meeting
the required level of end to end service for individual
users.
PROPOSED NODE NETWORK
E̲N̲V̲I̲R̲O̲N̲M̲E̲N̲T̲S̲ ̲S̲E̲R̲V̲E̲D̲
The environments served by the Air Canada Data Network
are shown below. As the outmost layer is the user environment,
providing transparent connection independent of host,
terminal or attached network idiosyncrasies. The ACDN
makes any user appear to a host as a valid end user
of the host itself. Connection between ACDN and a host
is by means of mainframe data channels. Other networks
and terminals are interfaced by communication line
access methods. Thus, a cost-effective and efficient
overall computing environment is achieved.
Air Canada Data Network Environments
…86…1 …02… …02… …02… …02…
The host environment served by ACDN includes the required
four projected host applications. An external network
environment accommodates the SITA, ARINC, and CNT networks.
A Gateway provides connection to the internal network
environment during the migration from the existing
ACNC to the proposed ACDN network. The terminal environment
comprises a multitude of heterogeneous multivendor
equipment: CRTs, FIDs, IBM 3270 compatible terminals,
printers, and many other device types. All environments
are accommodated by a nodal point in the ACDN. This
allows minimizing changes when enhancing the network.
Network Control can be carried out in either Toronto
or Montreal. Control functions are distributed, and
the control content at the node level is such that
many types of failure are handled without operator
intervention, allowing unmanned operation of the nodes.
Thus, network survivability is ensured.
Network management includes all functions necessary
for administrating the ACDN: subscriber services, installation,
billing, topology planning, statistics, and network
simulation. Simulation can be performed on-line with
real data reflecting the actual use of the network,
and thus allows management to choose the optimum network
configuration. Flexibility is augmented by allowing
management functions to be carried out at a central
or remote site.
The ACDN backbone network includes added value in the
form of an Electronic Mail Host (EMH) providing Protected
Message Service (PMS). Christian Rovsing's experience
in military store and forward systems is reflected
in the design of an EMH which ensures privacy and dependability.
Future addition of the Christian Rovsing local network
- X-NET - at travel agent facilities may be accommodated.
This would provide a means for adding circuit switching
to the facilities implemented by the ACDN.
Thus the ACDN fully meets the functional requirements
of Air Canada, and the backbone network can be enhanced
by graceful evolution to accommodate the future needs
and services of Air Canada.
H̲A̲R̲D̲W̲A̲R̲E̲
System implementation is based on a proven, fault tolerant
computing system, the CR80 . The CR80 is based on a
highly modular architecture: an architecture which
allows an existing computer installation to grow by
addition of existing types of modules; an architecture
which allows new elements to be integrated with existing
equipment thus facilitating employment of future technology.
A CR80 may include up to 16 multiprocessors interconnected
by means of megabit speed connections. Each multiprocessor
has up to 1 megaword of local memory and an operating
range of 0.6 to 2 MIPS. A total CR80 configuration
can provide from 10 to 30 million operations per second
of parallel operations.
CR80 FATOM - FAult TOlerant Multiprocessor
Flexible variation in the size and structure of CR80
systems is permitted by the unusual degree of hardware
modularity. The hardware includes fast transfer buses
joined to each other by adapters which allow units
on one bus to access those on another. Dualisation
at internal level and multiple redundancy at system
level provide a CR80 hardware architecture which is
fully exploited by the DAMOS software operating system
and programs to provide survival of operational failure
of individual components. Of ultimate importance is
the fact that functional expansion, capacity addition,
and speed increase can be accomplished by adding new
modules.
Reliability, which is of major concern in real-time
and distributed network applications, is achieved in
the CR80 computer systems by treating all multiprocessors
as equal elements not absolutely dedicated to a specific
role. Fault tolerance and backup are achieved through
an n+l redundance scheme without preassignment of system
functions to specific processors. This is in marked
contrast to the more common rigid, dualised configurations
often encountered in dedicated applications with on-line
master/slave arrangements, or off-line backup with
switchover facility.
The Air Canada new Data Network consists of three nodes
- Montreal, Toronto and Winnipeg, two Network Control
Centres - Montreal and Toronto, a Network Management
Host and an Electronic Mail Host - both in Toronto.
All critical elements of the ACDN are configured by
CR80 FATOM elements.
The CR80 architecture allows open ended growth power,
which is so crucial in a dynamic transaction oriented
environment.
The extreme flexibility of hardware configuration capabilities
supports graceful evolution of ACDN configurations.
As an example of this flexibility, Gateway equipment,
used in the migration phase, may evolve into the role
of accommodating new terminal equipment in 1986.
Whatever the phase of evolution of the ACDN, the CR80
FATOM hardware will provide high performance and availability
with survivability ensured by offering several levels
of degraded performance should one or more processing
resources fail.
PROPOSED NODE NETWORK
S̲O̲F̲T̲W̲A̲R̲E̲
The software for the backbone ACDN is structured in
accordance with the Open Systems Interconnection reference
model. This offers ease of software maintenance and
facilitates network application evolution.
The ACDN applications implement value added services
to the network: Network Control Software, Network Management
Software, and Electronic Mail Software. These value
added services are made available to all users of the
network by means of the Host Access Software, Terminal
Access Software, and External Network Access Software.
An important role of these software packages is to
map any user of ACDN into a virtual host end-user by
means of protocols. Finally, serving these layers are
a transport network providing logical network channels,
error free links, together with physical transmission
of bits.
Internodal communication is in accordance with CCITT
recommendation X.25 for packet switching. Essential
services provided are:
o datagram
o virtual connection
o permanent virtual connection
o priority differentiation
o end-to-end acknowledge
o end-to-end non-acknowledge
Also provided are virtual Terminal Interaction using
ECMA's Virtual Terminal Protocol. Virtual protocols
allow a unified Host Access Concept and Terminal Accept
Concept to be implemented, facilitating graceful enhancement
of the ACDN.
ACDN OSI Software Structure
P̲E̲R̲F̲O̲R̲M̲A̲N̲C̲E̲,̲ ̲G̲R̲O̲W̲T̲H̲ ̲A̲N̲D̲ ̲S̲U̲P̲P̲O̲R̲T̲
The response time of the ACDN is minimal and will only
account for a small part of the overall sender-receiver
response time. For 95% of all type-A transactions,
less than 500 msec will be used by the ACDN - mostly
for transmission; the overall sender-receiver response
time permitted is 5 seconds.
Capacity of the ACDN will meet the present needs of
Air Canada, and can be increased as required from the
baseline transaction volume at the end of 1985 to several
years past the projected 1991 volumes.
The minimum system using one active processing unit
and one back-up processing unit has a rated throughput
of 200 packets/sec.
The proposed system has been designed based on a conservative
approach: intra-network communication and derating
result in a transaction volume capacity per processor
of 360,000 transactions per peak hour. Thus, the maximum
capacity of a node is more than 4 million transactions
per peak hour.
Growth is virtually open ended and can be accomplished
by gradual changes to the software and hardware provided
with the initial system.
The system can be expanded to handle up to two to three
times the capacity of the projected 1991 volumes. This
will allow a switching capacity of more than 4,000,000
transactions per peak hour. The maximim subscriber
capacity per node is 30,000.
An extremely high level of service with respect to
reliability is provided to each individual subscriber
and to groups of subscribers. Even if a group of subscribers
exceeds the capacity of a single processing unit -
the equivalent of more than 60 access lines or the
equivalent of 3,000 subscribers - the fault torerant
system has enough capacity to continue providing service
to the remaining subscribers.
Last, but not at all least, the Air Canada Data Network
is fully supported by the Integrated Logistics Support
Departments of Christian Rovsing and CNCP. The following
key items are provided in compliance with the tender
requirements:
- transportation (Christian Rovsing)
- installation (CNCP)
- on-site test facilities (Christian Rovsing)
- complete documentation (Christian Rovsing)
- customer training (Christian Rovsing)
- maintenance (CNCP)
- support (Christian Rovsing)
- spare parts program (Christian Rovsing)
A̲T̲T̲A̲C̲H̲M̲E̲N̲T̲ ̲I̲
EXCERPT FROM CNCP CORRESPONDENCE
CNCP's involvement with Christian Rovsing is quite
recent. It first heard of this organization when Christian
Rovsing responded, via Plandata Electronics Limited
several months ago, to a Request for Information issued
by CNCP regarding the expansion of it's existing Infoswitch
network. Although CNCP had not dealt with Christian
Rovsing before, it was impressed by the comprehensiveness
of the response to the various features requested in
the RFI.
Subsequent discussions with Christian Rovsing personnel
revealed that they had established a close relationship
with the Collins Communication Switching Systems Division
of Rockwell International, an organization well known
and respected by both Air Canada and CNCP. Encouraged
by feedback from Collins personnel, CNCP decided to
obtain detailed first-hand knowledge of the Christian
Rovsing organization.
First, CNCP sent representatives to Copenhagen to investigate
Christian Rovsing's overall capabilities. Their mandate
was as follows:
O̲b̲j̲e̲c̲t̲i̲v̲e̲ ̲1̲
To determine the capability of Christian Rovsing in
conjunction with CNCP to meet the Air Canada RFP Publication
2001 requirements. This includes:
a) Determine if Christian Rovsing has the technical
capability and resources necessary to undertake
a task of this magnitude.
b) Determine if Christian Rovsing has the financial
and management capability to undertake a task of
this magnitude.
c) Determine the degree of CNCP involvement necessary
to be able to fulfil the Air Canada RFP requirement.
d) Develop the milestone activities necessary to permit
a joint Christian Rovsing/CNCP bid on the Air Canada
RFP.
e) Establish and recommend an appropriate project
team in both organisations capable of developing
the necessary proposal activity on schedule and
the team to implement the program on schedule.
f) Recommend to CNCP senior management the terms and
degree of commitment CNCP should undertake with
respect to the Air Canada requirement.
O̲b̲j̲e̲c̲t̲i̲v̲e̲ ̲2̲
To determine the capability of Christian Rovsing as
a supplier to CNCP of planned new products and services
and/or the expansion of existing services.
The CNCP investigative team returned from Denmark with
enthusiastic reports on the technical capabilities
of Christian Rovsing in particular, and the whole organization
in general.
Second, CNCP sent a representative to Copenhagen to
evaluate the CR80 system architecture and the software
(languages, methodology, structure, etc.) employed
by Christian Rovsing.
The N+1 redundancy architecture was found to be truly
modular, i.e. at both the processor and channel unit
levels, all elements of equipment were identical and
functionally interchangeable. The modularity aspect
of the processing unit entitles future expansion at
a minimum cost for equipment and with negligible operational
and maintenance retraining.
The software is largely written in PASCAL and SWELL,
the latter being Christian Rovsing's own intermediate-level
language adapted particularly to the CR80 and based
on the contexts and constructs of PASCAL. SWELL is
relatively easy to learn and is touted to be efficient
in terms of execution speed and core utilization, running
in the range of 1.2 to 1 when compared to both assembly
language speed and MCS requirements.
The use of intermediate and high level languages tends
to promote structured program modules and more efficient,
disciplined and measureable software production effort,
with the emphasis on proper design rather than on testing
and debugging.
Based on a brief exposure to the methodology employed
in designing, coding and linking communications - oriented
software, the approaches taken by Christian Rovsing
are readily endorsed.
As a result of the foregoing, CNCP believes that Christian
Rovsing will be a recognized leader in the data communications
field in the 1980's. CNCP has been deeply involved
in the preparation of this response to Air Canada's
Request for Proposal, and is fully committed in its
support of Christian Rovsing as the supplier of Air
Canada's proposed telecommunications network.
