VPN: Public Resources Private Network

VoicenData Bureau
New Update

To keep its corporate base intact, BSNL is planning to provide multi-protocol

label switch (MPLS) based VPN and broadband services across the country. This

will help BSNL in two ways. One, it will be able to offer corporates the entire

suite of services under one umbrella. Two, BSNL’s top- and bottom-line will

get a push.


With the coming up of private operators in basic and NLD services, BSNL had

no option but to reduce tariffs to match those of private operators. All this

has affected its turnover, and the behemoth plans to compensate for the loss and

increase ARPU by taking up new initiatives, with focus on data and value-added



VPN Project

The company has already tested its IP MPLS-based network to offer secure and

reliable VPN services. The services will be initially available in 10 cities–Delhi,

Mumbai, Chennai, Kolkata, Bangalore, Hyderabad, Pune, Ahmedabad, Lucknow and

Ernakulam. Although the PoPs are located in these cities, the services can be

available across India, by extending last-mile connectivity to the respective

cities as per the demand. In future, new PoPs will be added to expand the

network and cover cities wherever the demand exists.


The IP MPLS network is a closed network and is the first STM-1 based data

network offering IP connectivity in the country.

It has STM-1 (155 Mbps) mesh connectivity between four nodes–Delhi, Mumbai,

Bangalore, and Chennai. The remaining cities are being connected by redundant

STM-1 links to these four nodes. The Delhi-to-Lucknow link is currently

connected by E3 links (34 Mbps).

MPLS-based VPN service will help corporate customers to have a secure

dedicated closed user group (CUG), and high-speed IP-based network with simple,

user-friendly equipment at their premises. The network is ideal for corporates

connecting branch offices and head offices in a mesh network. Corporates can

establish a private network using public network resources without the hassle to

maintain the last-mile equipment. The technology also helps in ensuring that

data of one customer is in no way accessible to another VPN customer, making it

an ideal choice for banks and financial institutions. It also helps in ensuring

bandwidth and throughput guarantees being given to corporates.


for MPLS-based VPN service

tariff per VPN port
Bandwidth Tariff

per annum (in Rs lakh)




l Usage

charge is Nil
l Local

lead charge (up to the VPN port) is as per existing tariff on R&G at

l 10

percent discount on VPN port charges if one opts for multiple ports in the

same city

above tariff is subjected to the following conditions:
a) Minimum

assured bandwidth will be @ 25 percent of the VPN port subscribed 
b) No

PSTN/PABX connectivity will be allowed for these VPN ports
c) Eligibility

of the member to be same as that for the member of CUG network
d) Inter

VPN group communication not permitted

The MPLS VPN network of BSNL shall not be connected to the public Internet

currently, thereby increasing security. By taking all complexities in the

network core, it allows customers to have simple routers at their premises and

to have L2 connectivity. This provides the entire range of services like

point-to-point L2 (Frame Relay connectivity); point-to-multipoint L3 intranet

connectivity; transfer voice and data; choice of data access rates–64 kbps,

nx64 kbps, and 2 Mbps; VPN services–mesh and spoke; and others.

For the IP MPLS VPN network, the network management operations and

provisioning center has been established at Pune with disaster-recovery center

at Bangalore, which will help in quick provisioning of service when the network

is down.

Pravin Prashant