E2-E3 E&WS MLLN
WELCOME This is a presentation for the E2-E3 E & WS Module for the Topic: MLLN Eligibility: Those who have got the Upgradation to from E2 to E3. This presentation is last updated on 18-3-2011. You can also visit the Digital library of BSNL to see this topic.
AGENDA Introduction of Leased line Over view of MLLN Network MLLN Architecture Conventional Leased Line TVARIT System
Leased Line Introduction 1. A leased circuit is a dedicated link provided between two fixed locations for exclusive use of the customer. 2. It is a dedicated point to point line connecting the facilities of a Customer for telephone sets, EPABX,Computers, etc. or for forming a VPN.
Need for Leased Line Connecting geographically spread out locations. Dedicated transmission. Security. Ease of communication. Stand by arrangement. Networking. Interconnection.
IMPORTANTANCEOFLEASEDLINES Leased circuit provides us high revenue. Leased circuits serve very important needs of customers. Expectations of customers are very high. They need high Q.O.S. & want to sign SLAs. In the changing economic environment dependence of activities on leased circuits is increasing. Due to emerging competition rates are bound to go further down with many more new features.
What is MLLN MLLN Stands for Managed Leased Line Network. MLLN is a Fully Managed Access Network, which allows the operator to keep an end-to end control over the customer circuit and hence provide him guarantees of uptime of the circuit (QoS, SLA s). MLLN is a Next generation Digital Access Network which provides solutions to all the Data networking and Voice requirements of the customer. MLLN is an Overlay network realized through Tellabs Networking Elements, which offer Multiple Value-added and customized services to the customers.
Segments Addressed by MLLN Managed Bandwidth Leased Lines to Alternate Service Providers. Paging,VAS, Cellular, ISP & Value added Service Providers. Virtual Private Network (VPN). Stock exchanges, Banks, MNCs, Publishing Houses, Software Developers, Broadcasting companies. Multi-Service Network for Governance applications, State Wide Networks. Enhanced support for legacy applications Hotlines, PABX-IC, Point to Multi-point circuits, ISDN Service extension, Data circuit for Security & Travel applications
Tellabs 8100 Network Elements All elements managed end-to-end by one system: the Tellabs 8100 network manager Tellabs 8130 micro node Tellabs 8160 accelerator node A111 Tellabs 8170 cluster node Tellabs 8110 NTU Tellabs 8120 mini node Tellabs 8140 midi node Tellabs 8150 basic node
MLLN ARCHITECTURE MLLN Elements DXC (Digital Cross-Connect) VMUX (Versatile Multiplexer) NTU (Network Terminating Unit) NMS (Network Management System) (Centralized NMS for the whole network having main NMS site at Bangalore and the Disaster Recovery(DR) site at Pune)
Cluster Node(DXC) DXC In Master and Slave Configuration Modular DACC - 32 to 256 E1 s Full management from NMS
Basic Node(VMUX) VMUX 3 Types of V-MUX V-MUX Type-1, V-MUX Type-2 & V-MUX Type-3 (AC/DC Power) Built-in HDSL modem interfaces Full management from NMS
Features of MLLN elements NTU Wide range HDSL Network interfaces Different types of CPE interfaces Long drive on copper (7 km) Full management from NMS
NMS NMS Best in the industry User friendly GUI Open & redundant architecture
BSNL MLLN NETWORK Covering around 600 cities nationwide 3 tier architecture of DXCs Core network of regional DXCs (R-DXCs) at Mumbai, Delhi, Kolkatta and Chennai and Sub Regional (SR-DXCs) at various locations in the four maintenance regions
BSNL MLLN NETWORK Mesh connectivity between R-DXCs Mesh connectivity between SR-DXCs of the same region. All SR-DXCs connected to R-DXCs. Major SSAs have been provided with SS DXCs. Remote Operator Terminal (ROT) planned for every station having more than 30 leased circuits.
DIGITAL CROSS CONNECT (DXC) Features of DXC Capacity DXC (64 ports upgradeable to 128 ports) DXC (96 ports upgradeable to 128 ports) DXC (128 ports upgradeable to 256 ports) DXC (256 ports) I/0 cross-connect capability Non-Blocking Architecture
DIGITAL CROSS CONNECT (DXC) Redundancy Power Supply Switching Matrix Cross-connect Memory Expansion to be made possible by addition of cards only Fully Managed from Centralized NMS
Tellabs 8170 DXC
VERSATILE MULTIPLEXER (VMUX) Types of VMUX V-MUX Type-IA V-MUX Type-IIA Cards (PFUA-1,OMH-5,QMH- 2,XCG-1) (PFUA-1,OMH-2,XCG-1) V-MUX Type-IIIA 230V AC Powered (PUA/PFUA-1,OMH-2,XCG-1) -48V DC Powered Expansion to be made possible on the same chassis by addition of cards.
VERSATILE MULTIPLEXER (VMUX) VMUX to be able to extend hotline circuits. Point to point and Point to Multi-point circuit routing are possible. HDSL Driving Distance: 3.5km at 2Mbps 5 km at 1Mbps 7km for 64/128kbps (at 0.5mm dia copper cable)
VERSATILE MULTIPLEXER (VMUX) V-MUX Type Initial Requirement N x 64kbp s Hot line E1 Expansion Requirement (Incremental) N x 64kb ps Hot line VMUX Type 1A 40 12 8 4 VMUX Type 2 16 4 8 4 E1 VMUX Type 3 AC/DC 16 4 4 8 4 4
Tellabs 8150-VMUX TPYE-1A
NETWORK TERMINATION UNIT (NTU) Features of NTU Capacity 64/128kbps NTU with V.35 interface 64/128kbps NTU with G.703 interface N x 64kbps NTU with V.35 interface N x 64kbps NTU with G.703 interface N x 64kbps NTU with Ethernet Interface Line Loop Testing as per ITU-T rec V.54 NTU to send power off signal to the NMS at the time of NTU getting switched off.
Types of NTUs with different interfaces Tellabs 8110 STU-160/V.35 for 64/128 kbps NTU with V.35 interface Tellabs 8110 STU-160/G.703 for 64/128 kbps NTU with G.703 interface. STU-160 works up to 128kbps CTU-S and CTU-R works up to 2Mbps on a single pair of copper
Network Terminating Unit (NTU)
NETWORK MANAGEMENT SYSTEM Features of NMS (Centralized NMS for the whole network having main NMS site at Bangalore and the Disaster Recovery(DR) site at Pune) MLLN NMS Billing and Accounting System Web Self-care system
NETWORK MANAGEMENT SYSTEM MLLN NMS performs all the management functions on the network Provides complete functionalities Supports regional partitioning and VPN capabilities Performance Monitoring, Recovery, Reporting Packages
Conventional Leased Circuits Upgradability :In steps 64K, 2M Monitoring :No Manageability :No Testing :Fault localization Lengthy (NFF) Coordination Problems :Fault in Modem/ Last mile Provisioning :Long (Patching) SLA :No Bandwidth on Demand :No
Leased Circuits on MLLN Upgradability :In N * 64K Monitoring :Yes Manageability :Yes Testing :Fault localization Faster Coordination :No Problem (Both Modem/ Last mile of BSNL) Provisioning :Fast (Config.) SLA :Yes Bandwidth on Demand :Yes
MPLS VPN Upgradability :In n * 64K (even for non- MLLN) Monitoring :Yes (even for non- MLLN) Manageability :Yes Testing :Fault localization Faster (Monitoring by NOC even for Non- MLLN) Coordination :Depends on last mile (MLLN?) Provisioning :Fast (Config.) SLA :Yes (even for non- MLLN) Bandwidth on Demand :Yes
MPLS Vs MLLN MPLS MLLN Security Leased, 100% IP based PPP QOS,not 100%assured 100% available Shared dedicated
LEASED CIRCUIT MEDIA Leased circuits are available on Optical Fiber Media Radio Media Copper Wire and Satellite Media or a Combination of these media Local media and national long distance media are by the BSNL/MTNL and International Media by VSNL
TYPE OF LEASED CIRCUIT SERVICES 1. Speech Circuits (Hot Line or P-Wire) - Local or Long distance circuits within a city or between two different cities provided for the same applicant. The terminating equipment at both ends is telephone without dialing facility. Both way signaling and speech is possible. 2. Data Circuits - Local or Long distance data circuits at different speeds viz. 2.4Kbps,4.8Kbps, 9.6K bps, 64 kbps, nx64 kbps and 2 Mbps.
TYPE OF LEASED CIRCUIT SERVICES Telegraph Circuits:- Local and Long distance Tele- printer Circuits. International Leased Circuits:- Provided through VSNL.
TYPE OF LEASED CIRCUIT SERVICES Point-to-Point Data Circuits - Local and Long distance. Private Data Network - More than one Local or Long distance leased circuits. converging on a location such that data from one leased circuit can be transferred automatically to another leased circuit for the same subscriber.
What is TVARIT? TVARIT is Sanskrit word for the term IMMEDIATE. TVARIT is LEASED LINE ONLINE provisioning and upkeep system. It is computerized online system, simple to operate & self explanatory. Paperless. Reliable, Fast and Instant execution of transactions. All the manual activities are computerized.
NUMBERING SCHEME OF LEASED CIRCUIT Every leased circuit will have a number as ABCD/JKL/XY/EFGH WHERE ABCD= originating SDCA code EFGH= Terminating SDCA code JKL = Circuit number XY = Circuit type
NUMBERING SCHEME OF LEASED CIRCUIT For circuit within the same SDCA,ABCD=EFGH For 3 digit code, D= # and H= # For 2 digit code, C, D, = # and G, H = # For 3 digit SDCA code, for JKL = 000 to 999, the circuit number will be ABC#/JKL/XY/EFGH
NUMBERING SCHEME OF LEASED CIRCUIT For the circuit falling between 1000 to 1999 in SDCA with 2 digit code (i.e. JKL = 1000 to 1999), Value of D = * & C = # and the circuit number will become AB#/*JKL/XY/EFGH For the circuit falling between 2000 to 2999 in SDCA with 2 digit code (i.e. JKL = 2000 to 2999), Value of C = * & D= * and the circuit number will become AB/**JKL/XY/EFGH
XY codes of Tvarit 11 Speech circuit (with HOT line relay set) 12 Speech circuit (on PAX) 13 Speech-cum-data circuit 14 Voice grade data circuit 15 VFT 16 64 kbps circuit 17 N x 64 kbps circuits 18 2 Mbps circuit 19 8 Mbps circuit 20 34 Mbps circuit 21 140 Mbps circuit
XY codes Tvarit 22 STM-1 23 STM-4 24 STM-16 25 STM-64 26 R&G copper cable 27 R&G OFC cable 28 R&G UHF microwave 29 Contribution work copper cable 30 Contribution work OFC 31 Contribution work UHF microwave Any additional series code, (XY) will be centrally allotted
HOW TO ACCESS TVARIT TVARIT is accessible by : PSTN DIAL-UP ( 022-22670080) ISDN DIAL-UP ( 022 22639280 / 22639310 / 22639340 / 22639420) LEASED LINE ( 64 Kbps / 2 Mbps ) (LAN-WAN connectivity) Launch Internet explorer Write http://10.10.0.1/admin in the address bar The home page will be opened Enter valid username and password. Home page of the user will be opened. Carry out the required tasks by following the on-line menus
Key Features of TVARIT System Generation of the standard 13 digit unique number. Generation of the Provisional and final demand notes, Advice notes, Receipts and other general feasibility and channel allocation reports. Generation of Recurring bill. Generation of a full fledge Managerial Information Reports (MIS). Current accurate status viewing to all the concern authorities. Address change and cancellation of the circuits
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