knom tutorial 2000 integrated management of access network dec. 2000 ho chang...
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KNOM Tutorial 2000
Integrated Management of Access Network
Dec. 2000
Ho Chang
Samsung Electronics
Copyright 2000 Samsung Electronics Co.,LTD 2
KNOM Tutorial 2000
Contents
• What is Access Network• Evolution of Access Network -
Voice & Data Over Voice
• Evolution of Access Network -
Voice Over Data
• Managing Converged Voice/Data Network• Conclusion
Copyright 2000 Samsung Electronics Co.,LTD 3
KNOM Tutorial 2000
What is Access Network• In telephony, an Access Network is the wired connection from a
telephone company's central office in a locality to its customers' telephones at homes and businesses. This connection is usually on a pair of copper wires called twisted pair. The system was originally designed for voice transmission only using analog transmission technology on a single voice channel. Today, your computer's modem makes the conversion between analog signals and digital signals. With Integrated Services Digital Network or Digital Subscriber Line, the local loop can carry digital signals directly and at a much higher bandwidth than they
do for voice only.
Copyright 2000 Samsung Electronics Co.,LTD 4
KNOM Tutorial 2000
Service Perspectives - 1
• Voice
• Data over Voice
• Data
• Voice over Data
Copyright 2000 Samsung Electronics Co.,LTD 5
KNOM Tutorial 2000
Service Perspectives - 2
Traffic Estimation in US
0
200
400
600
800
1000
1200
1400
1600
1998 1999 2000 2001 2002 2003
Traffic (Tera Byte / Day)
년도
인터넷트래픽 음성트래픽 인터넷전화
Copyright 2000 Samsung Electronics Co.,LTD 6
KNOM Tutorial 2000
Network Perspectives - 1
• Subscriber Loop(Local Loop)
• 1G DLC– Digital Loop Carrier– Copper Line
• 2G DLC– Voice(UDLC/IDLC)– Optical Line
Copyright 2000 Samsung Electronics Co.,LTD 7
KNOM Tutorial 2000
Network Perspectives - 2
• 3G DLC– Voice + Data– Optical Line with Broadband
• Data Access Networks: – DSLAM– HFC– Cable TV– B&A
KNOM Tutorial 2000
Evolution of Access Network
Voice & Data Over Voice
Copyright 2000 Samsung Electronics Co.,LTD 9
KNOM Tutorial 2000
Subscriber Loop
Local Exchange
PSTNPSTN
Local Exchange
IPIP
NAS
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
• Simply twisted-pair cooper lines from CO to Subscribers
Copyright 2000 Samsung Electronics Co.,LTD 10
KNOM Tutorial 2000
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
1G DLC Network
Local Exchange
PSTNPSTN
Local Exchange
IPIP
N-NAS
DLCDLC DLC DLC
CurbArea
CurbArea
Copyright 2000 Samsung Electronics Co.,LTD 11
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DS0
DS0
DS0
DS0
DS0
DS0
1G DLC Equipments
CentralOffice
1GDLC
Remote1G
DLC
Phone
Fax
Dial-UpModem
ChannelizedE1 or DS3
LocalExchange
• Multiplexed Cooper Lines from CO to CP• Channelized E1 or DS3
Copyright 2000 Samsung Electronics Co.,LTD 12
KNOM Tutorial 2000
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
CurbArea
CurbArea
2G DLC Network - UDLC
Local Exchange
PSTNPSTN
Local Exchange
IPIP
N-NAS
DLCDLC DLC DLC
Copyright 2000 Samsung Electronics Co.,LTD 13
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2G DLC Equipments - UDLC
DS0
DS0
DS0
DS0
DS0
DS0
CentralOffice
2GDLC
Remote2G
DLC
Phone
Fax
Dial-UpModem
ChannelizedSTM-1 Local
Exchange
• TDM Optical Lines from CO to CP• Twisted pair cooper lines between CO DLC
and LE• FLC-A or FLC-B
Copyright 2000 Samsung Electronics Co.,LTD 14
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CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
CurbArea
CurbArea
2G DLC Network - IDLC
Local Exchange
PSTNPSTN
Local Exchange
IPIP
N-NAS
DLCDLC DLC DLC
Copyright 2000 Samsung Electronics Co.,LTD 15
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ChannelizedE1
2G DLC Equipments - IDLC
DS0
DS0
DS0
CentralOffice
2GDLC
Remote2G
DLC
Phone
Fax
Dial-UpModem
ChannelizedSTM-1
LocalExchangeChannelized
E1
ChannelizedE1
• TDM Optical Lines from CO to CP• E1 lines between CO DLC and LE• FLC-D
Copyright 2000 Samsung Electronics Co.,LTD 16
KNOM Tutorial 2000
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
CurbArea
CurbArea
3G DLC Network
ATMATM ATMATM
IPIPB-NAS B-NAS
Local Exchange
PSTNPSTN
Local ExchangeDLC DLC DLCDLC
Copyright 2000 Samsung Electronics Co.,LTD 17
KNOM Tutorial 2000
ChannelizedE1
3G DLC Equipments
CentralOffice
3GDLC
Remote3G
DLC
Phone
Fax
DialModem PC
ATM BasedSTM-1/4/16 Local
Exchange
ChannelizedE1
ChannelizedE1
DS0
CPE
PC
• ATM Based Optical Lines from CO to CP• Directly Transport Data Traffic• FLC-C(Samsung), PathStar(Lucent),
MSAN(Alcatel)
Copyright 2000 Samsung Electronics Co.,LTD 18
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CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
DSLAM Network
ATMATM ATMATM
IPIPB-NAS B-NAS
Local Exchange
PSTNPSTN
Local Exchange DSLAMDSLAM
CPE CPE
Copyright 2000 Samsung Electronics Co.,LTD 19
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DS0
DS0
DS0
DSLAM Equipments
CentralOffice
DSLAM
Phone
Fax
DialModem PC
LocalExchange
DS0
CPE
PC
• Transport High-Speed Data over Existing twisted-pair lines as well as Voice
• DS0 Twisted-Pair Between DSLAM and LE• AceLink(Samsung), Stinger(Lucent),
IMAS(Promatory)
KNOM Tutorial 2000
Evolution of Access Network
Voice Over Data
Copyright 2000 Samsung Electronics Co.,LTD 21
KNOM Tutorial 2000
Voice over Data
• Voice Over Packet to PSTN– VeDSL(Voice Enabled DSL)– VoDSL Gateway
• PSTN to Packet Network– Access Media Gateway– Trunk Media Gateway
Copyright 2000 Samsung Electronics Co.,LTD 22
KNOM Tutorial 2000
VeDSL - 1
POTS 512 kbpsupstream
1536 kbpsdownstream
Hz
...
PCM voice channel (64Kbps)
• Voice Enabled DSL• Use one of ADSL Channels as Voice Channel
Copyright 2000 Samsung Electronics Co.,LTD 23
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CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
VeDSL - 2
Local Exchange
PSTNPSTN
Local Exchange DSLAMDSLAM
CPE CPE
• Transport Voice PCM Signal itself
• IDLC is normally implemented in DSLAM
Copyright 2000 Samsung Electronics Co.,LTD 24
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CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
VoDSL Gateway
Local Exchange
PSTNPSTN
Local Exchange
DSLAMDSLAM
CPE CPE
VoDSLGateway
VoDSLGateway
• Transport Packetized Voice Signal over ATM• IDLC is normally implemented in DSLAM
Copyright 2000 Samsung Electronics Co.,LTD 25
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VeDSL vs. VoDSL
AAL2
Echo Canceller
ATM
Compression
Codec
SLIC ADSL Phy
VoDSL (Broadband Loop Emulation Service)
VeDSL (Voice Enabled DSL)
Codec
SLIC ADSL Phy
To DSLAM
To DSLAM
Copyright 2000 Samsung Electronics Co.,LTD 26
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Trunking Media Gateway
PSTNPSTNPSTNPSTN
SoftSwitch
TrunkingGateway
Long
Distance
,
Intern
ational
SCP
DB
MGCP/H.248
IP/ATMIP/ATM
TrunkingGateway
MGCP/H.248
• Replace Class 4 Switches
Copyright 2000 Samsung Electronics Co.,LTD 27
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Access Media Gateway
AccessAccessNetworkNetwork
SoftSwitch
AccessGateway
SCP
DB
MGCP/H.248
IP/ATMIP/ATM
AccessGateway
MGCP/H.248
AccessAccessNetworkNetwork
• Replace Class 5 Switches
Copyright 2000 Samsung Electronics Co.,LTD 28
KNOM Tutorial 2000
Where is the end ?
PACKET Network(IP/ATM)
EnterpriseNetwork
PSTN/ISDN
AccessNetwork
PBX
STP
MobileNetwork
SS7 NetworkNetworkManagement
Center
RADIUSServer
GateKeeper
ITSP/EnterpriseNetwork
Exchange
3rd party Call FeatureServer
MSC/BSC
OSS
RADIUS
H.323
SCP DB
INAP
SS7AP
API
POTSxDSLISDN-BRAISDN-PRAV5.2
MGCP/SIGTRAN/SIP
SIP/SIGTRAN
SS7AP
IntelligentPeripherals
UMS IVR
SoftSwitchSoftSwitch
Element Management
System
POTSISDN-BRA
Internetor
other Networks
M.G
M.G
AccessMediaGatewayTrunking
MediaGateway
Open API
KNOM Tutorial 2000
Managing Converged Access Network
Copyright 2000 Samsung Electronics Co.,LTD 30
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Reduce Costs
Changing Focus of Integrated Management System
Mechanization
1975
TaskReduction
Automation
1985
TaskElimination
Flow-Through
1995
TimeReduction
ServiceDifferentiation
2005
RevenueEnhancement
Reduce Costs Gain Advantage
Copyright 2000 Samsung Electronics Co.,LTD 31
KNOM Tutorial 2000
Problems in Integrated Management System
• Nasty Problems– Grandma’s Chair – The Plug
That Won’t Plug In– Too Many Boxes
• Recent Wows
Copyright 2000 Samsung Electronics Co.,LTD 32
KNOM Tutorial 2000
Grandma’s Chair
• When Implementing a Management System, a Carrier Wants it To Work With the One(s) It Already Has
Copyright 2000 Samsung Electronics Co.,LTD 33
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Grandma’s Chair in Access Network
DS0
DS0
DS0
DS0
DS0
DS0
CentralOffice
1GDLC
Remote1G
DLC
Phone
Fax
Dial-UpModem
ChannelizedE1 or DS3
LocalExchange
ChannelizedE1
ChannelizedE1
ChannelizedE1
ChannelizedSTM-1
DS0
DS0
DS0
Remote2G
DLC
Phone
Fax
Dial-UpModem
CentralOffice
2GDLC
LocalExchange
DS0
ATM BasedSTM-1/4/16
DS0
DS0Remote
3GDLC
Phone
Fax
Dial-UpModem
PC CPE
CentralOffice
3GDLC
Copyright 2000 Samsung Electronics Co.,LTD 34
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The Plug That Won’t Plug In
• “Make me a Management System that can plug into any vendor’s NE (today and tomorrow) and provide me the control and information I need. Also, plug together the other Management Systems.”
Copyright 2000 Samsung Electronics Co.,LTD 35
KNOM Tutorial 2000
Too Many Boxes
• Need Many Management Systems for Small Networks
• Need Many Management Systems for Medium Networks
• Need Many Management Systems for Large Networks
Copyright 2000 Samsung Electronics Co.,LTD 36
KNOM Tutorial 2000
Too Many Boxes in Access Network Too
CentralOffice
CustomerPremise
ATMATM
IPIPB-NAS
Local Exchange
PSTNPSTN
DSLAM
CPE
EMS for Vendor C
DSLAM
EMS for Vendor A
DSLAM
EMS for Vendor B
DSLAM
EMS for Vendor A
B-NAS
EMS for Vendor C
B-NASEMS for Vendor B
B-NAS
NMS for Vendor A
NMS for Vendor B
NMS for IP Network
NMS for ATM Network
NMS for Fault
Management
ServiceManagement
System for DSLAM
Copyright 2000 Samsung Electronics Co.,LTD 37
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Recent Wows
• Management System Architecture for Converged Voice/Data Networks
• Large, Correct Databases - Coherent Data Architectures
• Flow-Through Provisioning of Complex Voice/Data Services
• Converged Network Surveillance
Copyright 2000 Samsung Electronics Co.,LTD 38
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Converged Voice/Data Networks - 1
Local Exchange
PSTNPSTN
Local Exchange
IPIP
N-NAS
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
NMS for Local Exchange
Copyright 2000 Samsung Electronics Co.,LTD 39
KNOM Tutorial 2000
Converged Voice/Data Networks - 2
CentralOffice
CentralOffice
CustomerPremise
CustomerPremise
CurbArea
CurbArea
ATMATM ATMATM
IPIPB-NAS B-NAS
Local Exchange
PSTNPSTN
Local ExchangeDLC DLC DLCDLC
ServiceManagement
System for Voice
Copyright 2000 Samsung Electronics Co.,LTD 40
KNOM Tutorial 2000
What Should be Managed
• IADs or CPEs• DLC Systems and DSLAM Systems• NASs, Routers, and IP Switches• ATM Switches• VoP Gateways• Soft Switches• Interoperable Over Variety of Equipments and
Vendors
Copyright 2000 Samsung Electronics Co.,LTD 41
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How Can Interconnect• OSI Protocols v.s. Internet Protocols• OSI Protocols
– Heavy Weight, Expensive and Poor Performance
– Reliable and Secure
• Internet Protocols– Light Weight and Cheap
– Unreliable, Less-Secure and Limited IP Address Resources
• Interconnect Variety of Equipments and Vendors
Copyright 2000 Samsung Electronics Co.,LTD 42
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How to Inter-Operate
• TMN CMISE/CMIP
• SNMP V.1/2/3
• CORBA
• WEB based Protocols
• Policy Based Management Protocols
Copyright 2000 Samsung Electronics Co.,LTD 43
KNOM Tutorial 2000
Integration Over Management Layers
• Element Management Layer
• Network Management Layer
• Service Management Layer
• Flow Through Provisioning from Service Layer to Element Layer
• Correlate Inter-Layer Functionality
KNOM Tutorial 2000
Conclusion
Copyright 2000 Samsung Electronics Co.,LTD 45
KNOM Tutorial 2000
• Voice to Data
• Data over Voice to Voice over Data
• 64Kbps to 10’s Mbps, over 1000 times Bandwidth
• Convergence of Voice and Data
Copyright 2000 Samsung Electronics Co.,LTD 46
KNOM Tutorial 2000
• Nasty Problems in Access Network Too– Grandma’s Chair– Too Many Boxes– Too Many Protocols
Copyright 2000 Samsung Electronics Co.,LTD 47
KNOM Tutorial 2000
• Recent Wows in Access Networks– Converged Voice/Data Network– Flow-Through Provisioning– Integrated Network Surveillance