technical proposal - longhaul backbone project

TECHNICAL PROPOSAL

FORNTC DWDM Backbone Project

Jan. 2010

I

TABLE OF CONTENTS

1 Analysis of Current Network/Current Network Requirement...................2

2 Scope of work.........................................................................................23 Network Element...................................................................................24 Network Design Details.........................................................................3

4.1 Long Haul DWDM Solution..........................................................................................44.2 NG-SDH Solution..........................................................................................................12

5 Network Management Solution..........................................................125.1 General................................................................................................125.2 OptiX iManager U2000 Configuration..................................................125.3 Management capability of U2000 .......................................................135.4 Reliability Design.................................................................................14

6 DC Power Supply.................................................................................157 Cutover Solution..................................................................................168 Protection Scheme................................................................................16

1. Analysis of Current Network Requirements

Huawei realized that the “NTC Backbone” project is aimed to bring NTC a leading government network, in which Telecom and IT infrastructure facilitate the way, NTC works everywhere. Network is the underlying component of Telecom and IT infrastructure, Huawei put reliability and future-proven as our top prior consideration during the design.A major characteristic of NTC is that the network should providing IT & Telecom services to the Government of Pakistan up to tehsil level. Multi-

HEC DWDM PROJECT Commercial in Confidence PAGE 1 OF 18

services such as NGN, IP core routers, Green Exchanges, GPON, data networking are going to be widely deployed in the projected network replacing the existing SDH network for better reliability and scalability.

Another outstanding characteristic of this network is unprecedented performance required for future proven. Gigabit Ethernet, NG-SDH and DWDM ring will free NTC from frequent upgrading.

Uncompromised performance and sophisticated features keep this infrastructure as state-of-the-art even in Future.

2. Scope of work

In order to meet the NTC’s requirement. Huawei Technologies Co., Ltd offers OptiX OSN 6800 for Long Haul DWDM Solution, OSN 7500, OSN3500 and OSN2500 for Remote Sites Connectivity through SDH solution and OptiX iManager U2000 for NMS proposal.

The solution covers the supply, installation, testing, commissioning, services and maintenance support including the required maintenance and spare parts. The network consists of OptiX series equipment and Network Management System including Terminal local management (LCT), ODF, Power Supply.

For detailed items of equipment and services offered, please refer to the Bill of Quantities. A breakdown list of all related equipment materials is necessary for proper establishment and operation of the whole project as long as the OptiX equipment is detailed in the Bill of Quantity.

3 Network Element

Following equipments are offered for DWDM requirement as per Quantity:

OSN 6800(OTM) 2*10G system 56 Sets

OSN 6800 (OADM) 2*10G system 28 Sets

OSN 6800 (OLA) OLA 17 Sets

Following equipments are offered for NG-SDH requirement, as per Quantity:

OptiX OSN 3500 ADM-STM-64/16/4/1 30 Sets

OptiX OSN 2500 ADM- STM-16/4/1 18 Sets

OptiX OSN 7500 ADM-STM-64/16/ 13 sets


Network Management System (NMS)

OptiX iManager U2000(Server)

Network Management System (Unix, 1+1 geographical real time backup)

2 Sets

OptiX iManager U2000 (Client)

Network Management System (Windows platform)

5 Sets

OptiX iManager U2000LCT

Local Craft Terminal 16 LCTs

UPS System UPS 10 Sets

DCN

Quid way AR2901 Router 3 Sets

Quid way AR2921 Router 2 Sets

4 Network Design Details4.1 Long Haul DWDM Solution4.1.1 Network Topology

The proposed network diagram is shown as below:


Network Topology

Legend: OTM FOADM OLA ROADM Junction Unknown

G652 Fiber G653 Fiber G655-LEAF G655-TWRS Single-fiber bidirectional

larkanaK.N.ShahDadu

Kandhkot

Hyderabad Saeedabad Qazi Ahmed

Amirabad

Khairpur

Sukkur

Shikarpur

Pannu Aqil

Dherki R.Y.Khan InayatfurBahawalpur Lodhran

MultanCentral

New Multan

Muzzafargarh

QureshiChowk

D.G.KhanFazilpurRojhan

kot Addu

Karor LalEason

D.I. Khan

Bhakkar

Pizzu Bannu Daud Shah Kohat Peshawar

Nowshera

Kamra

Taxila

Islamabad

RAWALPINDI

Mandra

JHELUM

KHARIN

Gujrat

GujranwalaLahoreSheikhupuraOkara Faisalabad

Sahiwal

Mian Channu

Khanewal

Sardar Garh

81 km31.85 dB

49 km20.65 dB

101 km38.5 dB

96 k

m33

.5 d

B96

km

29.5

dB

64 k

m28

.9 d

B46

km

31.5

dB

75 k

m32

.7 d

B

88 km33.5 dB

101

km38

.61

dB

74 km31.5 dB

47 km27.5 dB

92 km27.5 dB

94 km35 dB

30 k

m14

dB

38 km19.5 dB

77 km

31.5 dB

67 k

m31

.5 d

B

37 km

16.45 dB

68 km27.3 dB

84 km30 dB

46 km18.63 dB

65 km24.5 dB

23 km14.5 dB

85 k

m29

.74

dB8

km11

.16

dB41

km

17.8

5 dB

24 k

m11

.9 d

B46

km

23.7

5 dB

39 km

17.15 dB

94 km29 dB

90 km25.5 dB 80 km

24.5 dB49 km20.65 dB

82 km26.95 dB

40 km17.5 dB

102 km26.7 dB

80 km32.3 dB

52 km24 dB

59 km21.76 dB

42 k

m18

.2 d

B49

km

20.6

5 dB

45 k

m19

.25

dB35

km

15.7

5 dB

14 k

m13

.5 d

B45

km

26 d

B72

km

38.5

dB

23 km13.5 dB

35 k

m15

dB

74 km

29.4 dB

76 km

34 dB43 km28 dB

103.66 km38 dB

113.6 km40.1 dB

46 km18.1 dB

81 km32.8 dB

47 km19.95 dB

47.5

km

16.5

dB

91 km39.5 dB

4.1.2 Fibre AttenuationThe fibre attenuation is according to Annex-B and the amendment as well as 3.5dB margin added. But for some section without indication, the attenuation coefficient is supposed to be 0.35 dB/km and 3.5dB margin is considered in this proposal. So the attenuation formula is 0.35*distance+3.5 (dB).4.1.3 Power budgetThere are seven kinds of EDFA amplifiers and one kind of Raman amplifiers deployed in this solution, including OBU101, OBU103, OBU104, OBU205, OAU101, OAU103, OAU105, RC01(Backward Raman). The optical amplifier design is based on the following table:


4.1.4 OSNRAs per Huawei’s solution, the OSNR value for each Och section is designed more than 16.4db. The OTU LSX for 10Gbits traffic is proposed and it’s OSNR tolerance is 14.5dB.4.1.5 wavelengths configurationAccording to NTC’s requirements, the proposed DWDM system provides 2*10G links among 3 rings. And wavelengths configuration is as following:

Wavelength ConfigurationNetworkwide channels

Qureshi ChowkLSX

1192.10THz

BhakkarLSX

Qureshi Chowk-Bhakkar

BhakkarLSX

1192.10THz

D.I. KhanLSX

Bhakkar-D.I. Khan

D.I. KhanLSX

1192.10THz

BannuLSX

D.I. Khan-Bannu

BannuLSX

1192.10THz

KohatLSX

Bannu-Kohat

KohatLSX

1192.10THz

PeshawarLSX

Kohat-Peshawar

PeshawarLSX

1192.10THz

NowsheraLSX

Peshawar-Nowshera

NowsheraLSX

1192.10THz

KamraLSX

Nowshera-Kamra

KamraLSX

1192.10THz

TaxilaLSX

Kamra-Taxila

TaxilaLSX

1192.10THz

IslamabadLSX

Taxila-Islamabad

IslamabadLSX

1192.10THz

RAWALPINDILSX

Islamabad-RAWALPINDI

RAWALPINDILSX

1192.10THz

JHELUMLSX

RAWALPINDI-JHELUM

JHELUMLSX

1192.10THz

KHARINLSX

JHELUM-KHARIN


Wavelength ConfigurationNetworkwide channels Continue 1

KHARINLSX

1192.10THz

GujratLSX

KHARIN-Gujrat

GujratLSX

1192.10THz

GujranwalaLSX

Gujrat-Gujranwala

GujranwalaLSX

1192.10THz

LahoreLSX

Gujranwala-Lahore

LahoreLSX

1192.10THz

SheikhupuraLSX

Lahore-Sheikhupura

SheikhupuraLSX

1192.10THz

FaisalabadLSX

Sheikhupura-Faisalabad

FaisalabadLSX

1192.10THz

OkaraLSX

Faisalabad-Okara

OkaraLSX

1192.10THz

SahiwalLSX

Okara-Sahiwal

SahiwalLSX

1192.10THz

KhanewalLSX

Sahiwal-Khanewal

KhanewalLSX

1192.10THz

New MultanLSX

Khanewal-New Multan

New MultanLSX

1192.10THz

Qureshi ChowkLSX

New Multan-Muzzafargarh-Qureshi Chowk

Qureshi ChowkLSX

2192.20THz

BhakkarLSX

Qureshi Chowk-Bhakkar

BhakkarLSX

2192.20THz

D.I. KhanLSX

Bhakkar-D.I. Khan


D.I. KhanLSX

2192.20THz

BannuLSX

D.I. Khan-Bannu

BannuLSX

2192.20THz

KohatLSX

Bannu-Kohat

KohatLSX

2192.20THz

PeshawarLSX

Kohat-Peshawar

PeshawarLSX

2192.20THz

NowsheraLSX

Peshawar-Nowshera

NowsheraLSX

2192.20THz

KamraLSX

Nowshera-Kamra

KamraLSX

2192.20THz

TaxilaLSX

Kamra-Taxila

TaxilaLSX

2192.20THz

IslamabadLSX

Taxila-Islamabad

KotriLSX

1192.10THz

DaduLSX

Kotri-Dadu

DaduLSX

1192.10THz

larkanaLSX

Dadu-larkana

ShikarpurLSX

3192.30THz

RojhanLSX

Shikarpur-Rojhan

D.G.KhanLSX

3192.30THz

Qureshi ChowkLSX

D.G.Khan-Qureshi Chowk

Qureshi ChowkLSX

3192.30THz

MuzzafargarhLSX

Qureshi Chowk-Muzzafargarh



MuzzafargarhLSX

3192.30THz

New MultanLSX

Muzzafargarh-New Multan

New MultanLSX

3192.30THz

Multan CentralLSX

New Multan-Multan Central

Multan CentralLSX

3192.30THz

LodhranLSX

Multan Central-Lodhran

LodhranLSX

3192.30THz

BahawalpurLSX

Lodhran-Bahawalpur

Qureshi ChowkLSX

4192.40THz

D.G.KhanLSX

Qureshi Chowk-D.G.Khan

R.Y.KhanLSX

3192.30THz

Pannu AqilLSX

R.Y.Khan-Pannu Aqil

Pannu AqilLSX

3192.30THz

SukkurLSX

Pannu Aqil-Sukkur

SukkurLSX

3192.30THz

ShikarpurLSX

Sukkur-Shikarpur

D.G.KhanLSX

4192.40THz

RojhanLSX

D.G.Khan-Rojhan

RojhanLSX

4192.40THz

ShikarpurLSX

Rojhan-Shikarpur

ShikarpurLSX

4192.40THz

SukkurLSX

Shikarpur-Sukkur

SukkurLSX

4192.40THz

Pannu AqilLSX

Sukkur-Pannu Aqil



Pannu AqilLSX

4192.40THz

R.Y.KhanLSX

Pannu Aqil-R.Y.Khan

ShikarpurLSX

1192.10THz

larkanaLSX

Shikarpur-larkana

R.Y.KhanLSX

4192.40THz

BahawalpurLSX

R.Y.Khan-Bahawalpur

BahawalpurLSX

4192.40THz

LodhranLSX

Bahawalpur-Lodhran

KotriLSX

1192.10THz

ThattaLSX

Kotri-Thatta

ThattaLSX

1192.10THz

Karachi(pak/cap)LSX

Thatta-Karachi(pak/cap)

Karachi(pak/cap)LSX

1192.10THz

HyderabadLSX

Karachi(pak/cap)-Hyderabad

HyderabadLSX

1192.10THz

Qazi AhmedLSX

Hyderabad-Qazi Ahmed

Qazi AhmedLSX

1192.10THz

KhairpurLSX

Qazi Ahmed-Khairpur

KhairpurLSX

1192.10THz

SukkurLSX

Khairpur-Sukkur

SukkurLSX

1192.10THz

ShikarpurLSX

Sukkur-Shikarpur

IslamabadLSX

2192.20THz

RAWALPINDILSX

Islamabad-RAWALPINDI


RAWALPINDILSX

2192.20THz

JHELUMLSX

RAWALPINDI-JHELUM

LodhranLSX

4192.40THz

Multan CentralLSX

Lodhran-Multan Central

JHELUMLSX

2192.20THz

KHARINLSX

JHELUM-KHARIN

Multan CentralLSX

4192.40THz

New MultanLSX

Multan Central-New Multan

New MultanLSX

4192.40THz

MuzzafargarhLSX

New Multan-Muzzafargarh

RojhanLSX

3192.30THz

D.G.KhanLSX

Rojhan-D.G.Khan

MuzzafargarhLSX

4192.40THz

Qureshi ChowkLSX

Muzzafargarh-Qureshi Chowk

KHARINLSX

2192.20THz

GujratLSX

KHARIN-Gujrat

GujratLSX

2192.20THz

GujranwalaLSX

Gujrat-Gujranwala

GujranwalaLSX

2192.20THz

LahoreLSX

Gujranwala-Lahore

LahoreLSX

2192.20THz

SheikhupuraLSX

Lahore-Sheikhupura

SheikhupuraLSX

2192.20THz

FaisalabadLSX

Sheikhupura-Faisalabad



FaisalabadLSX

2192.20THz

OkaraLSX

Faisalabad-Okara

OkaraLSX

2192.20THz

SahiwalLSX

Okara-Sahiwal

SahiwalLSX

2192.20THz

KhanewalLSX

Sahiwal-Khanewal

KhanewalLSX

2192.20THz

New MultanLSX

Khanewal-New Multan

New MultanLSX

2192.20THz

Qureshi ChowkLSX

New Multan-Muzzafargarh-Qureshi Chowk

ShikarpurLSX

2192.20THz

larkanaLSX

Shikarpur-larkana

larkanaLSX

2192.20THz

DaduLSX

larkana-Dadu

DaduLSX

2192.20THz

KotriLSX

Dadu-Kotri

KotriLSX

2192.20THz

ThattaLSX

Kotri-Thatta

ThattaLSX

2192.20THz

Karachi(pak/cap)LSX

Thatta-Karachi(pak/cap)

Karachi(pak/cap)LSX

2192.20THz

HyderabadLSX

Karachi(pak/cap)-Hyderabad

HyderabadLSX

2192.20THz

Qazi AhmedLSX

Hyderabad-Qazi Ahmed


Qazi AhmedLSX

2192.20THz

KhairpurLSX

Qazi Ahmed-Khairpur

KhairpurLSX

2192.20THz

SukkurLSX

Khairpur-Sukkur

SukkurLSX

2192.20THz

ShikarpurLSX

Sukkur-Shikarpur

BahawalpurLSX

3192.30THz

R.Y.KhanLSX

Bahawalpur-R.Y.Khan

4.1.6 DWDM Optical layer Configuration Network Configuration of optical layer as below:


Network Configuration SUBNET_1

47.00 km

19.95 dB

G652

New Multan

M40

D40

B103

A101C

OSNR =31.64 dB

47.50 km

16.50 dB

G652

Khanewal

M40

M40

D40

D40B103

A101

C

B104

A101C

OSNR =22.658 dB

81.00 km

32.80 dB

G652

Mian Channu

B101B101E

A101

B 46.00 km

18.10 dB

G652

Sahiwal

M40

M40

D40

D40B103

B103

E

B101 B104

A101B

OSNR =32.006 dB

113.60 km

40.10 dB

G652

46.00 km

18.10 dB

G652

Okara

M40

M40

D40

D40B104

A101

C

B205

B103 F A B101 R01

OSNR =23.365 dBOSNR =32.006 dB

103.66 km

38.00 dB

G652

Faisalabad

M40

M40

D40

D40B205

B103FAB101R01 B205

A101F

B101

OSNR =21.217 dB

43.00 km

28.00 dB

G652

103.66 km

38.00 dB

G652

Sheikhupura

M40

M40

D40

D40AB205

A101

F

B101 B103

A103B


76.00 km

34.00 dB

G652

Lahore

M40

M40

D40

D40B103

A103

C

B205

B103 E B101

OSNR =24.7 dB

74.00 km

29.40 dB

G652

Gujranwala

M40

M40

D40

D40B205

B103

D

B101 B103

B103D

B101

OSNR =25.682 dB

35.00 km

15.00 dB

G652

74.00 km

29.40 dB

G652

Gujrat

M40

M40

D40

D40B103

B103

E

B101 B104

A101B


23.00 km

13.50 dB

G652

KHARIN

M40

M40

D40

D40B104

A101

B

B104

A101B

OSNR =32.198 dB

72.00 km

38.50 dB

G652

JHELUM

M40

M40

D40

D40B104

B103

A

B205

A101D

B101

OSNR =20.112 dB

45.00 km

26.00 dB

G652

Mandra

B101B205C

B101 A103

E

14.00 km

13.50 dB

G652

45.00 km

26.00 dB

G652

RAWALPINDI

M40

M40

D40

D40B103

A103

B

B104

B103

OSNR =32.198 dBOSNR =20.112 dBIslamabad

M40

D40

B104

B103

A



35.00 km

15.75 dB

G652

Islamabad

M40

D40

B104

A101C

OSNR =32.887 dB

45.00 km

19.25 dB

G652

Taxila

M40

M40

D40

D40B104

A101

B

B104

A101B

OSNR =31.229 dB

49.00 km

20.65 dB

G652

Kamra

M40

M40

D40

D40B104

A101

C

B103

A101C

OSNR =31.55 dB

42.00 km

18.20 dB

G652

Nowshera

M40

M40

D40

D40B103

A101

C

B104

A101C

OSNR =31.941 dB

59.00 km

21.76 dB

G652

42.00 km

18.20 dB

G652

Peshawar

M40

M40

D40

D40B104

A101

B

B103

A101C


52.00 km

24.00 dB

G652

Kohat

M40

M40

D40

D40B103

A101

D

B103

A101C

OSNR =22.858 dB

80.00 km

32.30 dB

G652

Daud Shah

B101B103E

A101

C 102.00 km

26.70 dB

G652

Bannu

M40

M40

D40

D40B103

B103

D

B101 B103

B103F

B101

OSNR =24.83 dB

82.00 km

26.95 dB

G652

102.00 km

26.70 dB

G652

Pizzu

B101B103E

B101 B103

F 40.00 km

17.50 dB

G652

D.I. Khan

M40

M40

D40

D40B103

B103

E

B101 B104

A101B


49.00 km

20.65 dB

G652

Bhakkar

M40

M40

D40

D40B104

A101

C

B104

A101C

OSNR =26.463 dB

80.00 km

24.50 dB

G652

Karor Lal Eason

A103E

A101

B 46.00 km

23.75 dB

G652

kot Addu

A101B

A103

E

Qureshi Chowk

M40

D40

B103

A101

C


24.00 km

11.90 dB

G652

Qureshi Chowk

M40

D40

B104

B103B

OSNR =32.198 dB

41.00 km

17.85 dB

G652

Muzzafargarh

M40

M40

D40

D40B104

B103

A

B104

A101B

OSNR =32.166 dBNew Multan

M40

D40

B104

A101

C


39.00 km

17.15 dB

G652

Qureshi Chowk

M40

D40

B104

A101C

OSNR =32.354 dB

94.00 km

29.00 dB

G652

D.G.Khan

M40

M40

D40

D40B104

A101

B

B103

B103E

B101

OSNR =24.407 dB

90.00 km

25.50 dB

G652

Fazilpur

A103E

B101 B103

F 101.00 km

38.61 dB

G652

Rojhan

M40

M40

D40

D40B103

A101

E

B101 B205

A101F

B101

OSNR =19.154 dB

67.00 km

31.50 dB

G652

101.00 km

38.61 dB

G652

Kandhkot

B101B205D

B101 A101

F

Shikarpur

M40

D40

B103

B103

D

B101

OSNR =19.154 dB


38.00 km

19.50 dB

G652

Sukkur

M40

D40

B104

A101B

OSNR =31.051 dBShikarpur

M40

D40

B104

A101

B



37.00 km

16.45 dB

G652

Sukkur

M40

D40

B104

A101C

OSNR =32.476 dB

68.00 km

27.30 dB

G652

Pannu Aqil

M40

M40

D40

D40B104

A101

B

B103

B103D

B101

OSNR =23.402 dB

84.00 km

30.00 dB

G652

Dherki

B101B103E

B101 B103

D 46.00 km

18.63 dB

G652

R.Y.Khan

M40

M40

D40

D40B103

B103

E

B101 B103

A101C

OSNR =18.75 dB

91.00 km

39.50 dB

G652

46.00 km

18.63 dB

G652

Sardar Garh

B103B103E

A105

C 65.00 km

24.50 dB

G652

Inayatfur

A105C

B103 B103

E 23.00 km

14.50 dB

G652

Bahawalpur

M40

M40

D40

D40B103

A101

D

B104

A101B


85.00 km

29.74 dB

G652

Lodhran

M40

M40

D40

D40B104

A101

A

B103

B103E

B101

OSNR =25.434 dB

8.00 km

11.16 dB

G652

85.00 km

29.74 dB

G652

Multan Central

M40

M40

D40

D40B103

B103

E

B101 B104

B103

OSNR =32.198 dBOSNR =25.434 dBNew Multan

M40

D40

B104

B103

A


30.00 km

14.00 dB

G652

Sukkur

M40

D40

B104

B103 A

OSNR =32.198 dB

94.00 km

35.00 dB

G652

Khairpur

M40

M40

D40

D40B104

A101

B

B205

B103F

B101

OSNR =22.404 dB

92.00 km

27.50 dB

G652

Amirabad

B101B205E

B101 B103

E 47.00 km

27.50 dB

G652

Qazi Ahmed

M40

M40

D40

D40B103

B103

F

B101 B103

A103C

OSNR =22.738 dB

74.00 km

31.50 dB

G652

47.00 km

27.50 dB

G652

Saeedabad

B101B103E

A103

B 88.00 km

33.50 dB

G652

Hyderabad

M40

M40

D40

D40B103

B103

E

B101 B103

A101E

B101


75.00 km

32.70 dB

G652

Nooriabad

B101B103D

B101 A101

E

Karachi(pak/cap)

M40

D40

B103

B103

D

B101


46.00 km

31.50 dB

G652

Karachi(pak/cap)

M40

D40

B103

B103C

B101

OSNR =22.202 dB

64.00 km

28.90 dB

G652

G.Hadeed

B101B103D

B101 B103

C 96.00 km

29.50 dB

G652

Thatta

M40

M40

D40

D40B103

B103

D

B101 B103

B103E

B101

OSNR =25.609 dB

96.00 km

33.50 dB

G652

Kotri

M40

M40

D40

D40B103

B103

F

B101 B103

A101F

B101

OSNR =18.526 dB

101.00 km

38.50 dB

G652

96.00 km

33.50 dB

G652

Kalari

B101A103F

B101 A105

E 49.00 km

20.65 dB

G652

Dadu

M40

M40

D40

D40B205

A101

F

B101 B103

A101C


81.00 km

31.85 dB

G652

K.N.Shah

B101B103D

A101

C 77.00 km

31.50 dB

G652

larkana

M40

M40

D40

D40B103

B103

E

B101 B103

B103E

B101

OSNR =24.077 dB

77.00 km

31.50 dB

G652

Shikarpur

M40

D40

B103

B103

D

B101

OSNR =24.077 dB

Equipment is detailed in the Bill of Quantity.


4.2 NG-SDH Solution According to the bandwidth requirement and the existing SDH network topology, Huawei provide OSN 7500 for the Junction sites, OSN 3500 for the ring sites except junction sites and OSN 2500 for the spur sites. For each rings, the total capacity is 2*STM-64, which can access E1,E3,FE and GE services as Annex-E specified. To deal with poor protection of existing SDH network, Huawei proposed NG-WDM system can provide diversity protection schemes including network protection and equipment protection. 1+1 hot backup function is provided for power board, fan and XC, as well as TPS is available for E1 and E3 interfaces. For the network protection, MSP ring, Optical-share-based MSP, SNCP and Dual-node interconnection (DNI) protection can cooperate with each other to maximize the network reliability. The DNI protection is one of unique features of Huawei’s solution, especialy suitable for the cross ring topology with multiple junction node, which can anti failure of junction node. Optical-share-based MSP is a evolution of traditional MSP, which can improve the efficiency of bandwidth utilization significantly comparing with MSP.

5 Network Management Solution5.1 General

OptiX iManager U2000 not only provides DWDM equipment management, but also handles the entire OptiX family members including NG-SDH . In compliance with ITU-T related recommendations, NMS offers rich network maintenance functions. It can manage the fault, performance, configuration, security, maintenance and test of the entire OptiX transmission network. It also provides the end-to-end management function according to the requirements of users. It improves the quality of network services, reduces the maintenance cost and ensures rational use of network resources.

NMS with the features of user friendly Man-Machine interfaces, powerful and state-of-the-art functionality, Its object oriented design approach allows the user to enable or disable any service according to the physical network.

5.2 OptiX iManager U2000 Configuration

In this project, according to the RFP requirements we proposed remote 1+1 NMS backup solution(one for Karachi and one for Islamabad). Operator can do network operation, administration, maintenance and provisioning (OAM&P) in both main server and standby server.5*U2000 client and 16*U2000 LCT (Local Craft Terminal) are proposed


For high reliability and efficiency, Huawei configure 2 Master GNE as well as 2 slave GNE for backup in this solution. The 2 Master GNE are located in Islamabad and Karachi respectively, and the 2 slave GNE are located in Lahore and Multan central respectively. The Master_1 GNE(Islamabad) convergent NE information within Ring-1 through DCC, and report it to U2000 server(M) and U2000 server(S) through DCN(E1/FE channel). The Master_2 GNE(Karachi) convergent NE information within Ring-2 and Ring3 through DCC, and report it to U2000 server(M) and U2000 server(S) through DCN(E1/FE channel). The Slave_1 GNE is located in Lahore as Master_1 GNE backup, and The Slave_2 GNE is located in Multan Central as Master_2 GNE backup. So each GNE only converge about 50 NEs(WDM +SDH) information, and has dual backup(GNE backup and NMS server backup), so the response delay will be very small and the reliability will be high.

The DCN planning is shown as below:

So NTC should provide E1 channels for DCN connectivity as below:

E1 Channels

Islamabad Karachi Lahore Multan Central Sukkur

Islamabad 　 5 2 2 1Karachi 　 2 2 1

5.3 Management capability of U2000

The maximum management capability of U2000 depends on the different hardware and software platform. Generally, the management system of client based on windows platform has a better efficiency than the UNIX platform, so in order to get the same management capability, based on windows platform can


reduce the hardware requirements, this results in the hardware cost reduced. So in our offer, we provide the client system of U2000 based on the windows platform.

Configured the hardware and software of U2000 as follows:

Table 1-1 Hardware configuration of iManager U2000

Item Specificationclient Desktop,E5200 Or Above, 2G, 80G,

DVDRW, Integrated NIC, Integrated Audio Card, Internal Speaker,19-Inch LCD, English Windows XP Professional, Internal V92 Modem

server Sun T5220 Single, 4C*1.2GHz, 8G(4*2G), 4*146GB,1*1000M NIC(4 Ports),1*Monitor Card

Software configuration of iManager U2000

Item ConfigurationOperation system of client

Windows XP professional

Operation system of server

SUN Solaris 10(10/08)

Database Sybase Adaptive Server Enterprise v15.0.2,English Version,20 Users,for Sun Solaris SPARC 64-bit, Paper OEM License, Media Kit,No Doc., With 1 Yr Product Services

iManager application software

SDH Function(NMS Basic)-SDH NE Manager, SDH E2E,MSTP Ethernet E2E modulesNG-WDM Function(NMS Basic)- NG-WDM NE Manager, WDM E2E modules

5.4 Reliability Design

The purpose of reliability design is to take some measures to reduce risk and enhance the running ability of products.

The U2000 may encounter some risks when applied in the network. Although the probability is very low, measures should still be taken for the sake of safe running of the system.

Table 1-2 Reliability of iManager U2000


Risk Solution of the U2000

Hardware failure

Power failure of the U2000 computer

Use UPS power supply

Communication failure with gateway NE (fiber and cable fault, and gateway NE network interface fault)

Start DCN protection first

Computer hard disk or CPU fault at the server

Disk mirroring or HA system

Software failure

Database crash and network data loss

Timely backup database, dump database, copy database (one type of two-node cluster backup), or export configuration data to script

The U2000 application software failure

HA system

6 DC Power SupplyNo-break DC power system is configured according to actual power consumption of the equipments provided in the BOQ. The rectifier is modular design, so it is easy for expansion in future. All the proposed rectifiers are manufactured by Emerson, which can provide 1:N protection. Power system configuration meet 10 hours 1+1 backup requirement. And the total power consumption for each station as following: (unit: W)


7 Cutover SolutionCutover is the biggest issue of this project, because there is no dark fibre available for cutover. To deal with this problem, Huawei divide the cutover progress into 2 phases :

1. Migrate the STM-4 service into Huawei NG-SDH equipment and then map into DWDM system along the existing ring and the cutover will be implemented based on ring topology section by section. During cutover, the STM-4 traffic is transparently transmitted through SDH and WDM without processing, so the existing protection scheme will still work. When the cutover of section is finished, the new built network can provide SNCP protection, which will inherit from existing SNCP and can be used to provide protection for the intra-ring or inter-ring traffic. The cutover finished site can be used to provide additional protection resources to the traffic that is going to be migrated. So the main route STM-4 service can be protected by the alternate route as well as the new built network during cutover.

2. Migrate the tributary services into Huawei proposed NG-SDH equipment site by site and swap the old SDH equipment, which means cutover the services from DDF to DDF.

8 Protection scheme

Huawei proposed system can provides equipment level protection and network level protection as per the requirements of NTC. To bring perfect protection in network level, Huawei provides a combination solution with Optical-path-shared MSP, SNCP and DNI(Dual-node interconnection).

Huawei provides Optical-path-shared MSP plus SNCP solution for ring1 protection, because the number of NE in ring1 exceeds 16, which means one MSP ring can not passthrough all of NEs. So one SNCP ring passing all the NEs is deployed and ather Optical-path-shared MSP ring is also deployed only for big traffic NEs. According to the traffic matrix provided by NTC, the traffic between big city is more than 60% of the total. For details, refer to the diagram below:


Ring-1

New MultanNew MultanKHARINKHARIN

GujranwalaGujranwala

LahoreLahoreFaisalabadFaisalabad

PeshawarPeshawar

Is lamabadIslamabad

QureshiChowkQureshiChowk

MSP Ring-λ2

SheikhupuraSheikhupura

SahiwalSahiwal

D.I. KhanD.I. Khan

KohatKohat

TaxilaTaxila

JHELUMJHELUM

NowsheraNowshera

New MultanNew Multan

RAWALPINDIRAWALPINDIKHARINKHARIN

GujratGujrat

GujranwalaGujranwala

LahoreLahore

OkaraOkara

FaisalabadFaisalabad

KhanewalKhanewal

BannuBannu

PeshawarPeshawar

KamraKamra

IslamabadIslamabadBhakkarBhakkar

SNCP Ring-λ1

The protection scheme within ring2 and ring3 is similar with ring1, but because of NE number doesn’t exceed 16, so two MSP rings are provided in ring2 and ring3. For details, refer to the diagram below:

Ring-2

New Multan

QureshiChowk

Shikarpur

R.Y.Khan

Bahawalpur Lodhran

Multan Central

D.G.KhanRojhan

Pannu Aqil

MuzzafargarhSukkur

New Multan

QureshiChowk

Shikarpur

Multan Central

Sukkur

MSP Ring-λ1 MSP Ring-λ2


Ring-3

Shikarpur

Sukkur

Shikarpur

Sukkur

MSP Ring-λ1 MSP Ring-λ2

larkana

Dadu

Kotri

Thatta

Karachi(pak/cap)

Hyderabad Qazi Ahmed

Khairpur

Hyderabad

Karachi(pak/cap)

Besides MSP and SNCP, Huawei also can provide Dual-node interconnection(DNI). The DNI network topology protection scheme effectively enhances the reliability of inter-ring services. The DNI realizes the protection of services between two rings, which are networked by the equipment from different vendors and adopt different protection schemes.


technical proposal - longhaul backbone project

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