TECHNICAL REQUIREMENTS DOCUMENTATION
Annexure A: Technical Requirements
SANReN Backbone DWDM Transmission Equipment
RFP No. 3121/07/07/2017
CSIR RFP No 3121/07/07/2017 Technical Requirements: SANReN Backbone DWDM Equipment
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Table of Contents 1 Purpose of this RFP ..................................................................................................................... 7
2 Detailed Technical Requirements .............................................................................................. 7
2.1 DWDM Network Design ...................................................................................................... 7
2.1.1 Repeater sites ............................................................................................................. 10
2.1.2 Services to be provisioned ........................................................................................ 17
2.1.3 General design requirements: .................................................................................. 18
2.1.4 Automatic Protection Switching (APS) .................................................................... 20
2.2 BoM for equipment ............................................................................................................. 20
2.3 Software to support the solution ...................................................................................... 21
2.3.1 Network Management System ..................................................................................... 21
2.3.2 Design Software ............................................................................................................. 22
2.4 Installation and Commissioning ....................................................................................... 22
2.4.1 Coordinates for sites .................................................................................................. 23
2.5 Support and Maintenance Requirements ....................................................................... 25
2.6 Training ................................................................................................................................ 26
2.7 References .......................................................................................................................... 26
2.8 Lab Equipment (Optional) ................................................................................................. 26
3 Contract Duration ....................................................................................................................... 27
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Glossary
Abbreviation Term Description
AC Alternating Current
APS Automatic Protection Switching Automatic protection switching is a protection mechanism for SONET/SDH networks that allows circuits to be switched from one circuit to another when a circuit fault or failure occurs.
BoM Bill of Materials A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts and the quantities of each needed to manufacture an end product.
CSIR Council for Scientific and Industrial Research
A statutory body established in terms of Scientific Research Council Act 46 of 1988, as amended.
DWDM Dense Wavelength Division Multiplexing
Dense Wavelength Division Multiplexing is an optical multiplexing technology used to increase bandwidth over existing fibre networks. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fibre.
ECNS Electronic Communications Network Service
Electronic Communications Network Service (ECNS) licences: These licences authorise the holder to roll out and operate a physical network.
ILA In-line Optical Amplifier
IP Internet Protocol An IP address is an identifier assigned to each computer and other device
ITU International Telecommunication Union The International Telecommunication Union, originally the International Telegraph Union, is a specialized agency of the United Nations that is responsible for issues that concern information and communication technologies.
LC/APC Lucent/Little/Local Connector - Angled Physical Contact
Fibre optic connector of the LC type with angle-polishing on fibre end-face.
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Abbreviation Term Description
LDAP Lightweight Directory Access Protocol LDAP is a software protocol for enabling anyone to locate organizations, individuals, and other resources such as files and devices in a network, whether on the public Internet or on a corporate intranet.
NMS Network Monitoring System Network monitoring is the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages or other trouble.
NOC Network Operations Centre
NTPv4 Network Time Protocol (version 4) Network Time Protocol is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.
OEM Original Equipment Manufacturer An Original Equipment Manufacturer is a company that makes a part or subsystem that is used in another company's end product.
PoP Point of Presence Location where networking equipment may be accessed.
Regen Regeneration site
RFP Request For Proposal A request for organisations and companies to submit a proposal to supply goods and services to CSIR.
ROADM Reconfigurable Optical Add-Drop Multiplexer
A reconfigurable optical add-drop multiplexer (ROADM) is a device that can add, block, pass or redirect modulated infrared and visible light beams of various wavelengths in a fibre optic network. ROADMs are used in systems that employ wavelength division multiplexing.
RU Rack Unit Unit of measure describes the height of electronic equipment designed to mount in a 19-inch rack. One rack unit is 1.75 inches (44.45 mm) high.
SANReN South African National Research Network
The South African National Research Network (SANReN) is a high-speed network dedicated to science, research, education and innovation traffic.
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Abbreviation Term Description
SKA Square Kilometer Array The Square Kilometre Array is a large multi radio telescope project aimed to be built in Australia and South Africa. If built, it would have a total collecting area of approximately one square kilometre.
SNMP Simple Network Management Protocol Simple Network Management Protocol is a popular protocol for network management. It is used for collecting information from, and configuring, network devices, such as servers, printers, hubs, switches, and routers on an Internet Protocol network.
SR optic Short Reach optic
TAC Technical Assistance Centre
XML eXtensible Markup Language XML is a text-based format used to share data on the World Wide Web, intranets, and elsewhere.
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List of Figures Figure 1: Diagram showing the dark fibre links on the SANReN Network .................................. 8
Figure 2: Repeater sites on route on Link B .................................................................................. 11
Figure 3: Repeater sites on route on Link E .................................................................................. 11
Figure 4: Repeater sites on route on Link F ................................................................................... 12
Figure 5: Repeater sites on route on Link G .................................................................................. 12
Figure 6: Repeater sites on route on Link H .................................................................................. 13
Figure 7: Repeater sites on route on Link K .................................................................................. 13
Figure 8: Repeater sites on route on Link R .................................................................................. 14
Figure 9: Repeater sites on route on Link X .................................................................................. 14
Figure 10: Repeater sites on route on Link Y ................................................................................ 15
Figure 11: Repeater sites on route on Link AA .............................................................................. 15
Figure 12: Repeater sites on route on Link AC ............................................................................. 16
List of Tables Table 1: List of Links with their associated Fibre Characteristics ................................................. 9
Table 2: Traffic Matrix for 100G services ........................................................................................ 17
Table 3: List of interfaces at each PoP ........................................................................................... 18
Table 4: Coordinates for SANReN PoPs ........................................................................................ 23
Table 5: Coordinates for regen sites with add-drop equipment .................................................. 24
Table 6: Coordinates for regen sites ............................................................................................... 24
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Optical Transmission Equipment for the SANReN Backbone Network
1 Purpose of the RFP
The purpose of this RFP is to determine the optical transmission equipment for the dark fibre
network that SANReN is procuring.
This RFP will assess the bidders’ ability to design, deploy and support an optimized cost
effective solution for the CSIR based the design criteria described in the sections below.
This RFP is for an optical transmission solution only. Bidders may not include any switching
or routing equipment as part of their response. This RFP may inform, but not determine any
decisions on switching or routing equipment for the SANReN network.
All respondents must comply with the general terms and conditions detailed in the main RFP
document.
2 Detailed Technical Requirements
2.1 DWDM Network Design
Bidders must design an optical transmission network for the dark fibre network shown in
Figure 1. This design must conform to requirements outlined in the sections below. The
details for the designed network must be submitted as part of the bid.
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Figure 1: Diagram showing the dark fibre links on the SANReN Network
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The fibre characteristics for each of the links (distance, loss, cmd, pd) identified in Figure 1
above are provided in the table below:
Table 1: List of Links with their associated Fibre Characteristics
Link description Distance (km)
Loss (dB/km)
CD (ps/nm.km)
PMD (ps/sqrt(km))
A IS Bree St. CT - Yzerfontein 95.70 0.28 16.60 0.05
B Yzerfontein - Teraco CT 146.44 0.23 16.60 0.05
C IS Bree St. CT - CSIR CHPC CT 9.83 0.31 16.32 0.03
D CSIR CHPC CT - Teraco CT 5.86 0.25 16.80 0.02
E IS Bree St. CT - Teraco CT (via SUN) 169.76 0.25 16.80 0.02
F IS Bree St. CT - Beaufort West 554.00 0.24 18.00 0.06
G Beaufort West - Kimberley 512.00 0.24 18.00 0.06
H Kimberley - UFS BFN 171.00 0.24 18.00 0.06
I UFS BFN - CUT BFN 58.92 0.25 16.45 0.02
J UFS BFN - CUT BFN 9.33 0.25 16.45 0.02
K CUT BFN - WITS JHB 435.00 0.24 18.00 0.06
L WITS JHB - IS Rosebank 29.30 0.44 16.60 0.05
M WITS JHB - IS Rosebank 17.00 0.36 16.60 0.05
N IS Rosebank - Teraco Isando 28.00 0.28 16.87 0.04
O Teraco Isando - UNISA Pretoria 65.97 0.25 16.87 0.04
P UNISA Pretoria - CSIR Pretoria 21.76 0.24 16.60 0.05
Q UNISA Pretoria - CSIR Pretoria 48.70 0.24 16.60 0.05
R CSIR Pretoria - Mtunzini 736.00 0.24 18.00 0.06
S Mtunzini - Umhlanga 124.27 0.28 8.10 0.10
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T Umhlanga - Teraco Durban 20.00 0.25 16.80 0.02
U Umhlanga - DUT Durban 28.33 0.33 8.10 0.10
V DUT Durban - UKZN Durban 25.42 0.24 16.39 0.02
W DUT Durban - UKZN Durban 92.53 0.24 16.39 0.02
X UFS BFN - Blaney 565.00 0.24 18.00 0.06
Y Blaney - NMMU Port Elizabeth 449.00 0.24 18.00 0.06
Z Blaney - UFH East London 55.00 0.24 18.00 0.06
AA Carnarvon - Beaufort West 185.00 0.25 16.80 0.02
AB NWU Vanderbijlpark - WITS JHB 100.59 0.24 16.43 0.02
AC NWU Potchefstroom - NWU Vanderbijlpark 129.74 0.24 16.43 0.02
AD IS Bree St. CT - Teraco CT 15.69 0.28 16.30 0.03
AD UKZN Durban - Umhlanga 54.01 0.29 12.02 0.06
SANReN has provided its best estimates for the fibre characteristics of these links. All
bidders must use this information in designing the required optical transmission network. The
expectation from SANReN is that a detailed, low level design process will be undertaken
with the winning bidder before implementation and any changes in the fibre characteristics
will be provided to the winning bidder at this stage.
2.1.1 Repeater sites
Many of the links provided in Table 1 have repeater sites on route that may be used for in
line amplification (ILA). The details for these repeater sites are provided below in Figure 2 to
Figure 12. Except for the repeater sites where add-drop equipment must be deployed, not all
repeater sites need to be used.
The bidders must design the network with a 3db margin per fibre segment for fibre
degradation and breaks.
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Figure 2: Repeater sites on route on Link B
Figure 3: Repeater sites on route on Link E
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Figure 4: Repeater sites on route on Link F
Figure 5: Repeater sites on route on Link G
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Figure 6: Repeater sites on route on Link H
Figure 7: Repeater sites on route on Link K
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Figure 8: Repeater sites on route on Link R
Figure 9: Repeater sites on route on Link X
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Figure 10: Repeater sites on route on Link Y
Figure 11: Repeater sites on route on Link AA
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Figure 12: Repeater sites on route on Link AC
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2.1.2 Services to be provisioned
Only 100G services will be deployed on the SANAReN dark fibre backbone network. The
following traffic matrix describes the required 100G services to be provisioned between sites.
Table 2: Traffic Matrix for 100G services
Yze
rfon
tein
IS - B
ree
St. C
T
CS
IR C
HP
C C
T
Te
raco
CT
Ca
rna
rvo
n
CU
T B
FN
UF
S B
FN
WIT
S J
HB
Te
raco
Isa
ndo
IS R
ose
ba
nk
NW
U P
otc
he
fstro
om
UN
ISA
Pre
toria
CS
IR P
reto
ria
Mtu
nzin
i
DU
T D
urb
an
UK
ZN
Du
rba
n
Te
raco
Du
rban
UF
H E
ast L
on
do
n
NM
MU
Po
rt Eliz
ab
eth
NW
U V
an
de
rbijlp
ark
Yzerfontein
IS - Bree St. CT 1
CSIR CHPC CT
1
Teraco CT 1 1 1
Carnarvon
1
CUT BFN
UFS BFN
1
1
WITS JHB
1
1
Teraco Isando
1
1
IS Rosebank
1 1
NWU Potchefstroom
1
UNISA Pretoria
1
CSIR Pretoria
1
1
Mtunzini
1
1
DUT Durban
UKZN Durban
1 1
Teraco Durban
1 1 1
UFH East London
1
NMMU Port Elizabeth
1
1
NWU Vanderbijlpark
1
1
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The total number of client interfaces per site based on the table above is given below:
Table 3: List of interfaces at each PoP
2.1.3 General design requirements:
All bidders must comply with the following requirements when designing their transmission
network. This must be explicitly confirmed in the Functional Evaluation Matrix.
2.1.3.1 Add-drop sites at SANReN PoPs
1. The solution shall comprise 96 channel directional ROADM equipment supporting
100Gb/s DWDM channels.
2. The solution shall support 96 channels with 50GHz spacing between the channels
using coherent C-band channels only.
3. The solution shall support an out-of-band management channel (OSC) for optical
line monitoring using an OSC wavelength outside of the 96 channels used for
services.
PoP No. of interfaces
Yzerfontein 2
IS - Bree St. CT 7
CSIR CHPC CT 4
Teraco CT 3
Carnarvon 1
CUT BFN 2
UFS BFN 4
WITS JHB 6
Teraco Isando 4
IS Rosebank 2
NWU Potchefstroom 2
UNISA Pretoria 2
CSIR Pretoria 3
Mtunzini 4
DUT Durban 2
UKZN Durban 3
Teraco Durban 3
UFH East London 2
NMMU Port Elizabeth 2
NWU Vanderbijlpark 2
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4. It shall be possible to configure added, dropped and through channels on the
ROADM remotely using the Network Management System.
5. The solution shall automatically detect when fibre is connected.
6. The solution shall automatically balance the power on all channels transmitted on a
network facing port.
7. The solution shall support client side LR4 Ethernet interfaces.
8. The solution shall support redundancy of all common components (power supplies,
control cards, management cards) and shall be hot-swappable.
9. The SANReN PoPs will supply AC power unless otherwise stated. The solution must
accommodate this requirement.
10. The maximum size of the system shall be 24RU and it shall be rack mountable in an
ETSI 19” rack. These dimensions include the ROADM shelf and any shelves
required to house filters.
11. The solution shall not require replacement of the system chassis to accommodate
higher than 100Gb/s channels. If the solution has a fixed backplane that will limit the
introduction of higher speed interfaces, or require replacement of the system
chassis, then the upgrade requirement must be described in detail.
12. The solution shall provide a full 96 channel filter shelf installed in the initial
installation.
13. The solution shall include continuous in-service line monitoring capabilities which
shall run within the same optical fibre pair as the active traffic. The line monitoring
solution shall accurately locate faults on the dark fibre network and provide network
operators with the location of the fault.
14. The maximum power consumption for the system at each site shall be 1000W.
2.1.3.2 Add-drop sites at repeater sites
All requirements for add-drop at SANReN PoPs sites apply except the following:
1. The solution shall primarily be DC powered with an operating voltage of -48 VDC.
2. The maximum size of the system shall be 16RU and it shall be rack mountable in an
ETSI 19” rack. These dimensions include the ROADM shelf and any shelves
required to house filters.
3. The maximum power consumption for the system at each site shall be 500W.
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2.1.3.3 ILA Sites
1. The solution installed in the repeater sites to be used for ILA shall provide optical
amplifiers only unless they are required to balance optical power levels according to
the network design.
2. In the case where intermediate sites require balancing it is acceptable to install
balancing modules and / or ROADM modules in the intermediate sites.
3. The solution installed in the ILA sites shall support the same 96 channels with
50GHz spacing between the channels as the main ROADM equipment. It is not
acceptable to use sub-standard amplifiers that will not support the full 96 channels at
50GHz channel spacing.
4. The maximum power consumption for the system at each site shall be 500W.
5. The maximum size of the system shall be 10RU and it shall be rack mountable in an
ETSI 19” rack. These dimensions include the amplifier shelf, ROADM shelf (if
required) and any shelves required to house filters.
6. The solution shall primarily be DC powered with an operating voltage of -48 VDC.
2.1.4 Automatic Protection Switching (APS)
SANReN requires APS to be configured between the following pairs of links:
1. Link AD and Link E
2. Link J and Link I
3. Link M and Link L
4. Link P and Link Q
5. Link W and Link V
2.2 BoM for equipment
Bidders must compile a detailed BoM for the network that was designed as part of 2.1. This
BoM must clearly show the equipment that will need to be deployed at each site (PoP and
repeater site). This BoM must ideally be easily navigable and must be provided in both soft
and hard copy formats.
Bidders must clearly indicate the typical lead times for each item on the BoM and indicate
mechanisms by which lead times may be expedited.
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2.3 Software to support the solution
2.3.1 Network Management System
Bidders must provide an NMS system to manage, configure and control the network. The
bidder must provide details of its NMS system and confirm that the following requirements
must be adhered to:
1. The network management system shall provide Fault, Configuration, Accounting,
Performance and Security Management functions for the DWDM network.
2. All management products functions shall be available 24 hours a day, in support of a
24/7 operations.
3. All management system software versions deployed as part of the solution shall be
supported for a minimum of 5 years, with patches and upgrades.
4. All management system software shall be capable of running on virtual server
platforms, unless software runs within a self-contained computer appliance, in which
case the bidder must include the required hardware (processing, storage and
interfaces), system software (firmware and operating system) and the NMS system
as part of their bid.
5. All management system software shall support both Internet Protocol (IP) IPv4 and
IPv6.
6. All management system software shall support role based authentication and
authorisation through some directory management services.
7. All management systems should cater for redundancy and automatic failover. The
active and standby system shall be able to be geographically separated.
8. All management systems should not poll more than once for the same information.
9. The management system shall provide a hardware real-time clock which can be
synchronised with Network Time Protocol (NTPv4) time server.
10. The management system shall support ALL of the equipment proposed (at PoPs,
repeater sites and ILA sites).
11. The system must support the export of collected data to another system (e.g. XML,
SNMP).
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2.3.2 Design Software
In addition to the NMS system, the bidder must make available to SANReN its network
design tools for the purpose of extending the optical network if and when required.
2.4 Installation and Commissioning
The CSIR currently does not have the capability to deploy a network of the scale olanned for
the SANReN backbone upgrade. As such, we require the bidders to provide this service as
part of their bid. The CSIR has the following requirements regarding installation and
commissioning:
1. The bidder must deploy and commission the entire network on the CSIR behalf
including at SANReN PoP sites and repeater sites. This includes the responsibility to:
a. Patch the fibre from the ODF to the installed equipment;
b. Connect the equipment to the power distribution unit if required; and
c. Source and install any additional accessory that the bidder requires to get the
system up and running.
2. The NMS server must be deployed and configured as part of this service.
3. All patching done as part of this project must clearly be labelled and allow for
SANReN engineers to maintain the network as needed in the future.
4. The following documentation must be provided to the CSIR once the deployment and
commissioning work has been completed:
a. As-build diagrams showing the details of the deployed network for each site;
b. Photos of the completed work at each site;
c. System configurations for all sites;
d. Inventory (including serial numbers) per site of all equipment installed.
5. SANReN must have the option to participate during the staging of the equipment.
6. SANReN must have the option to accompany the bidder during installation.
7. A high level rollout plan and estimated project plan for the deployment of the network
must be provided. The assumption can be made that all of the fibre is available. (It is
expected that the deployment of the transmission network will occur in phases as the
national fibre becomes available. A detailed, realistic project plan will be jointly
determined with the winning bidder)
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2.4.1 Coordinates for sites
The coordinates for the SANReN PoPs identified in Figure 1 above are provided in the table
below:
Table 4: Coordinates for SANReN PoPs
The coordinates for the Regen sites that require add-drop equipment to be installed are
provided in the table below:
Name Latitude Longitude
Carnarvon -30.970001 22.141229
CSIR CHPC CT -33.9552 18.4748
CSIR Pretoria -25.7447 28.2775
CUT Bloemfontein -29.1222 26.2161
DUT Durban -29.8496 31.0106
IS Bree St CT -33.918428 18.420574
IS Rosebank -26.1469 28.0359
Mthumzini -28.959861 31.758603
NMMU Port Elizabeth -34.009574 25.667986
NWU Potchefstroom -26.6859 27.0937
NWU Vanderbijlpark -26.724872 27.880233
Teraco CT -33.970355 18.464655
Teraco Durban -29.778428 30.991623
Teraco Isando -26.138 28.19802
UFH East London -33.02048 27.9071
UFS Bloemfontein -29.109476 26.185387
UKZN Durban -29.8681 30.9796
UNISA Pretoria -25.7678 28.1997
WITS JHB -26.1928 28.0303
Yzerfontein -33.331042 18.236316
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Table 5: Coordinates for regen sites with add-drop equipment
The coordinates for all other regen sites for are provided in the table below:
Table 6: Coordinates for regen sites
Name Latitude Longitude
Adelaide -32.70356593 26.29424072
Alice -32.79142641 26.83464538
Alicedale -33.31348329 26.07515259
Bronkhorstpruit -25.79419811 28.74728667
Burgersdorp -31.00042518 26.32421586
Charthcart -32.29972222 27.15333333
Cookhouse -32.7448961 25.80719324
De Aar -30.6442451 24.01330053
Edenburg -29.73524964 25.93038409
Ermelo TFR -26.52108578 29.99885483
Geluksplaas -26.10208676 29.51950949
Germiston -26.21025779 28.16749301
Heuningskloof -29.19798755 24.54054406
Huegenot -33.72858634 18.97643705
Hutchison -31.49891927 23.18846
Kroonstaad -27.65843437 27.23454584
Laingsburg -33.19281438 20.86488803
Leeu Gamka -32.79627517 21.98077057
Loxton -31.484837 22.349499
Merriman -31.21392146 23.6134419
Nelspoort -32.11418481 23.00305404
Name Latitude Longitude
Beaufort West -32.35119775 22.57705879
Blaney -32.86650078 27.52340814
Kimberley -28.73291529 24.76992414
Umhlanga -29.730626 31.067546
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Ogies -26.0499475 29.05093382
Oranjerivier -29.66822303 24.20666887
Parys regen -26.904047 27.450093
Petrusburg -29.10884116 25.41712211
Piet Retief -27.01177676 30.79235594
Prince Albert -32.97594185 21.69720688
Queenstown -31.89332345 26.87822176
Sasolburg -26.85202735 27.86645324
Springfontein -30.26814041 25.70733767
Sterkstroom -31.56591009 26.55002576
Swartkops -33.87881241 25.60835985
Theunissen -28.40576803 26.7183082
Touwsrivier -33.32843437 20.0408987
Tygerberg -33.892775 18.564167
Ulundi -28.30309732 31.45077537
University of Stellenbosch -33.9294 18.8659
Vryheid -27.80076488 30.82595857
Wolseley -33.41025323 19.19601922
2.5 Support and Maintenance Requirements
The CSIR requires the deployed network to be supported by the bidder for a period of three
(3) years from the date of the contract. The support requirements include:
1. An agreed upon SLA with at least the following criteria:
a. 24/7 access to a Network Operations Centre (NOC) to log support requests;
b. 4 hours response time; and
c. Next business day replace service nationally.
2. Access to a Technical Assistance Centre (TAC) for OEM Hardware/Software
support.
3. Software updates for the period under support.
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4. Spares list and holding to support the SLA (SANReN assumes that a certain amount
of spares will hosted locally and will not have to imported during a fault).
a. Bidders must indicate the location and quantity of the spares that will be held
locally.
2.6 Training
The CSIR requires that training be provided as part of this project. SANReN has identified
that it will require training for at least the following:
1. Operator Training for 7 pax
2. Planner/design training for 4 pax
3. Field engineer/maintenance training for 7 pax
An overview for the required three (3) types of the training must be provided together with
the response with a clear indication of the duration for each course.
2.7 References
All bidders must provide details for four (4) references. The references must cumulatively be
able to testify to the bidder’s capability in:
1. Supplying the proposed equipment to clients;
2. Installing and commissioning long haul optical transmission systems; and
3. Providing support and maintenance to clients.
The following details need to available per reference:
1. Name of Company
2. Name of account manager that the bidder has dealt with (optional)
3. Contact detail for company/account manager (email or telephone number)
4. Reference letter from company/account manager (optional)
Bidders who provide local references will be awarded additional points in the functional
evaluation.
2.8 Lab Equipment (Optional)
CSIR RFP No 3121/07/07/2017 Technical Requirements: SANReN Backbone DWDM Equipment
Page 27 of 27
The CSIR would ideally require some additional equipment to be based at the SANReN lab
facilities to do tests, to simulate scenarios (existing and new) and to identify faults in the
network. This equipment will not be deployed on the live network. The CSIR requests
bidders to supply the following equipment at a heavily discounted rate for lab purposes:
1. Two (2) copies of every unique item/equipment that will be deployed on the SANReN
network.
Bidders will not be penalised for not providing this equipment. However, bonus points will be
awarded to bidders who are willing to supply this equipment.
3 Contract Duration
The contract for the supply, installation and commissioning of the equipment shall be valid
until the final link is handed over to SANReN. The contract for support and maintenance will
be for 3 years from handover of the equipment.