Transcript WELCOME [www.training.bsnldurg.in]

VOCATIONAL TRAINING AT
BSNL DURG
ASSIGNMENT TITLE : MLLN
ASSINGNMENT GROUP : 8
BY
AAFREEN HAQUE
AANCHAL MISHRA
ANKITA NAMDEO
SAGAR LUNIYA
GAJENDRA KUMAR
SAHU
INDEX
1.
2.
3.
4.
5.
6.
7.
8.
Drawback of traditional leased line circuits
What is MLLN
Advantages
Types
Keys element of MLLN
MLLN nodes
Application
Summary
DRAWBACK OF TRADITIONAL LEASED LINE
CIRCUITS
1. Grew from 64 kbps they have to jump over to 2
Mbps only.
2. Data Cards support only up to 64 Kbps
3. From Operator pt of view in case of Leased Line
Circuit different boxes from different vendors so
difficult to manage & control.
4. No Centralized Monitoring or alarm or
performance monitoring.
5. Therefore we should have a control to all this, we
are able to identify before the customer know
which circuit has gone faulty The solution to this
is MLLN
WHAT IS MLLN
1.
2.
MLLN stands for Managed Leased Line Network
It provides variable bandwidth leased line
connectivity.
3. The State-of-the art technology equipment MLLN is
designed mainly for having effective control.
4. Because of that down time is very much minimized
and the circuit efficiency is increased thus achieving
more customer satisfaction.
5. This mainly supports with data circuits ranging from
64 KBPs to 2048 KBPs.
MLLN ADVANTAGES
1.
2.
3.
4.
5.
6.
24 hrs performance monitoring of the circuit.
Circuit fault reports generated proactively(before
customer know we should detect the fault & rectify it).
On demand the bandwidth can be increased. (Without
changing the MODEM recreate the circuit with the same
MODEM.
Low lead time for new circuit provisioning. (Create &
debug if any fault).
Long drive on single copper pair.( For 64 kbps – 7 kames
& for 2mbps – 3.5 kames)
Saving the cost of modems, NTU is provided by BSNL
without any charges.
TYPES OF MLLN
There are basically two types of MLLN circuits-
1. Point to point circuit
2. Point to multipoint circuit
1.
POINT TO POINT CONNECTIVITY
1) Local and Long Distance Typically, leased lines are
used by businesses to connect geographically distant
offices. Unlike dial-up connections, a leased line is
always active.
2) 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.
2. POINT TO MULTI POINT CIRCUITS
1)
In
telecommunications,
point-to-multipoint
communication is communication which is
accomplished via a distinct type of one-to-many
connection, providing multiple paths from a single
location to multiple locations.
2) Point to multi-point networks are used to connect
one location to one or more remote locations. The
below diagram shows three connected multi-user
networks (using a Hub or Switch). Any location may
be configured as a Direct connection (without a Hub
or Switch)
1. Point-to-multipoint telecommunications is
most typically (2003) used in wireless
Internet and IP telephony via gigahertz radio
frequencies. A central antenna or antenna
array broadcasts to several receiving antennas
and the system uses a form of time-division
multiplexing to allow for the back-channel
traffic.
2. Air-Frame 100 at location B can be used to
create many, co-located point to multi-point
networks or cells.
3. P2MP systems have been designed both as
single and bi-directional systems.
KEY ELEMENTS OF MLLN
1.
2.
3.
4.
5.
6.
7.
8.
MLLN nodes
Servers
Workstations
Networking equipment
Others (printers, UPS etc)
Ras
Firewall
Remote operator terminal connectivity
equipment
9. Grooming mux at main and DR sites
10. Connectivity equipments at remote sites
MLLN NODES
MLLN nodes
1.
2.
3.
4.
DXC (Digital Cross-Connect)
VMUX (Versatile Multiplexer)
NTU (Network Terminating Unit)
NMS ( Network Management system)
Servers
1.
2.
3.
4.
5.
Database Server
NMS Application Servers
Billing and Accounting Servers
Web Self Care Servers
Proxy servers
1. Workstations
1)
2)
2.
Local operator terminals
Remote operator terminals
Networking Equipment
1)
2)
3)
4)
5)
6)
7)
Router
LAN Switch
RAS
Firewall
Remote Operator Terminal Connectivity Equipment
Grooming Mux at Main and DR Sites
Connectivity equipments at Remote Sites
3. Others
1)
2)
3)
Un-interrupted power supply
Printers
Messaging System
NETWORK TERMINATING UNIT
1. Capacity
1)
2)
3)
4)
5)
64/128kbps NTU with V.35
64/128kbps NTU with G.703
N x 64kbps NTU with V.35
N x 64kbps NTU with G.703
N x 64kbps NTU with Ethernet interface
2. NTU to send power off signal to the NMS at the
time of NTU getting switched off.
3. STU-160 works up to 128kbps
4. CTU-S and CTU-R works up to 2Mbps on a
single pair of copper
APPLICATION OF MLLN
1. Corporate high speed internet access
through Broadband.
2. LAN interconnection.
3. Hotline connectivity for voice.
4. Point to point connection for data circuit.
5. Point to multipoint connection.
6. EPABX Interconnection.
7. VPN on MLLN Network.
8. Extension of VPN (MPLS) to Customer.
SUMMARY
1. MLLN is a variable network.
2. It is a fully integrated circuit which provide
multi service network.
3. It provides high speed & reliability.
4. It is available for 24 hours.
5. Its bandwidth can be increased.
THANKYOU
Any queries