MLLN ( Managed Leased Line Network ) M.S . CHORASIA SDE,RTTCAM

1. MLLN (Managed Leased Line Network) M.S. CHORASIA SDE,RTTCAM RTTCAM / IT & BB

2. What is Leased Line ? A leased line is a dedicated telecommunications path between two points that is available 24 hours a day for use by a designated user (Individual or company). • These leased lines can carry data, voice and video information. It is not shared in common among multiple users as dialup line. RTTCAM / IT & BB

3. MLLN The MLLN is a Managed Leased Line Network system, which can provide leased line connectivity. • MLLN is capable of supporting two type of leased line. • 1.Point to Point Circuit • 2.Point to Multi Point Circuit Bandwidth of a Managed Leased Line can be 64Kbps or n x 64 Kbps up to a maximum of 2240 Kbps RTTCAM / IT & BB

4. MLLN • KEY ELEMENTS OF MLLN • MLLN Nodes • Servers • Workstations • Networking Equipment • Others (Printers, UPS etc) RTTCAM / IT & BB

5. MLLN NODES • DXC (Digital Cross-Connect) • VMUX (Versatile Multiplexer) • NTU (Network Terminating Unit) • NMS (Network Management System) RTTCAM / IT & BB

6. Servers • Database Server • NMS Application Servers • Billing and Accounting Servers • Web Self Care Servers • Proxy Servers • Workstations • Local Operator Terminals • Remote Operator Terminals RTTCAM / IT & BB

7. Networking Equipment • Router • LAN Switch • RAS • Firewall • Remote Operator Terminal Connectivity Equipment • Grooming Mux at Main and DR Sites • Connectivity equipments at Remote Sites • Others • Un-interrupted power supply • Printers • Messaging System RTTCAM / IT & BB

8. MLLN features The MLLN is an integrated, fully managed, multi-service digital network platform , through which service providers can offer a wide range of services at an optimal cost to Business Subscribers . Using the NMS, with powerful diagnostics and maintenance tools, the MLLN can provide high-speed leased lines with improved QOS (Quality of Service), high availability and reliability. RTTCAM / IT & BB

9. MLLN features NMS also supports Service Provisioning, Network Optimization, Planning and Service Monitoring. The system also offers features such as end to end circuit creation and monitoring, Circuit Loop Test and fault isolation, Automatic re-routing of traffic in case of trunk failure, Software programmability of NTU etc. Due to its wide range of applications in various sectors like banking (Core Banking), financial institutions, stock markets, newspaper industry, broadcasting houses and Internet Service Providers, the system benefit all kind of people all over the country. RTTCAM / IT & BB

10. MLLN Advantages 24 Hours performance monitoring of the circuit Circuit fault reports generated proactively On demand the bandwidth can be increased Low lead time for new circuit provisioning Protection against the failure of the circuit Long drive on single pair copper wire Centrally managed from ROT connected to the Network Management System RTTCAM / IT & BB

11. Corporate hi-speed Internet Access thro NIB LAN-Inter Connection Hotline connectivity for voice Point-to-Point Connection for data circuit Point to Multipoint Connection for data circuit EPABX Inter-connection Virtual Private Network on MLLN Network Extension of VPN (MPLS) to customer thro MLLN Application of MLLN RTTCAM / IT & BB

12. HQ-PBX - R&D - PBX 5x64 kbit/s HQ-PBX - Factory - PBX 7x64 kbit/s HQ-Router - R&D -Router HQ-Router - Factory - Router Circuit Endpoint Types PBX Router R&D Access SUAP Router MUAP Consolidation GMH VCM GMH HQ Backbone SUAP GMH VCM SUAP MUAP PBX TS 0…15 Factory TS 0…15 SUAP GMH VCM Router MUAP TS 0…15 RTTCAM / IT & BB PBX

13. NTU DXC VMUX Typical MLLN Network 16 E1 V17 ID 601 V18 32 E1 V19 V20 V21 DXC 96 V22 V23 V24 GURGAON 24 E1 24 E1 V14 ID 603 56 E1 V1 ID 602 56 E1 V13 V2 V12 V3 8 E1 DXC 144 V11 V4 V10 V5 V9 NOIDA 56 E1 V8 56 E1 V7 V8 V16 V7 V1 V9 V15 V2 V6 V10 V3 V5 V14 V11 V13 V4 V12 RTTCAM / IT & BB

14. Key elements of MLLN • A DXC (Digital X-Connection) is equipped with several trunk (E1) interfaces. • This network element cross connects the similar capacity of ports specified by the network operator. • Setting up and releasing a connection by the operator not by subscriber. Tellabs 8170 DXC • A digital Versatile Multiplexer (VMUX) is equipped with several channel interface. • This network element multiplexes that all tributaries (ports) coming from other devices and forms a higher hierarchy level output at the specified port. • Tellabs Basic node is offered to meet the VMUX requirements. Tellabs 8150 VMUX RTTCAM / IT & BB

15. Key elements of MLLN NTU Customer Premises Equipment (CPE) with different interfaces. ROT (Network Management System) Cross connections can be made freely between any of the interface types; trunk to trunk, trunk to channel & channel to channel. RTTCAM / IT & BB

16. Network Termination Unit (NTU) Base band NTUs are CPE of the networks. Allows use of existing telecom copper cables for digital traffic. CTU-R & CTU-S base band table top modems are used in this PO. CTU-S model is used for Nx64Kbps (64,128…2240 Kbps) connectivity. CTU-S are normally equipped with V.35 or G.703 DTE interfaces. CTU-R model is used for N*64 Kbps (64,128…2240 Kbps) connectivity. CTU-R is equipped with Ethernet DTE interfaces ROT (NMS) is used to configure the NTU. NTUs are working on 230V, 50 Hz-AC power supply. RTTCAM / IT & BB

17. Thank You RTTCAM / IT & BB