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Questions and Answers
What is the discount percentage on VPN ports for 5 to 25 ports on a graded basis?
For how many ports does the discount on VPN ports remain at 0%?
What is the volume-based discount on MPLS VPN service for revenue between Rs.50 lakhs to 1 Crore?
What are the shifting charges for MPLS VPN & IP VPN Port?
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How long is the minimum hiring period for MPLS VPN and IP VPN ports?
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What happens to the rent for a lower BW port when upgrading to a higher bandwidth?
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Where are the Local Lead charges included if they are within the local area of a City/Town?
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What discount is applied for an annual revenue of Rs.2 Crore to Rs.5 Crore on MPLS VPN Service?
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What is the volume-based discount on MPLS VPN service for revenue more than Rs.5 Crore?
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Study Notes
MPLS VPN Fundamentals
- MPLS (Multiprotocol Label Switching) is a unique feature that controls the entire path of a packet without explicitly specifying the intermediate routers.
- It creates tunnels through intermediary routers that can span multiple segments, used for provisioning MPLS-based VPNs.
MPLS Applications
- Improves packet-forwarding performance in the network by using Layer-2 switching paradigms.
- Simplifies packet forwarding through routers, making it easy to implement.
- Increases network performance by enabling routing by switching at wireline speeds.
- Supports QoS (Quality of Service) and CoS (Class of Service) for service differentiation.
- Uses traffic-engineered path setup to achieve service-level guarantees.
Overlay VPN Model
- Initially implemented by SP (Service Provider) using Layer 1 (physical layer) connectivity or Layer 2 transport circuit between customer sites.
- Customer was responsible for all other layers, and the service provider was not aware of customer routing or routes.
Peer-to-Peer Model
- Developed to overcome the drawbacks of the Overlay model and provide customers with optimal data transport via the SP backbone.
- The service provider actively participates in customer routing, accommodating customers using overlapping address spaces.
- MPLS VPN is an implementation of the peer-to-peer model, exchanging Layer 3 customer routing information and forwarding data between customer sites using the MPLS-enabled SP IP backbone.
MPLS VPN Architecture
- Consists of customer network and provider network.
- Customer network includes devices or routers spanning multiple sites belonging to the customer.
- CE routers interface with the service provider network.
- Provider network consists of provider edge and provider core routers, controlling traffic routing between sites and customer traffic isolation.
Advantages of MPLS over Other Technologies
- BSNL's primary objectives in setting up the BGP/MPLS VPN network include providing a diversified range of services to meet the requirements of various customers.
Pricing and Discounts
- Discounts on VPN ports based on the number of ports, with a graded and non-graded basis.
- Volume-based discounts on MPLS VPN service based on annual revenue.
- Shifting charges, minimum hiring period, and upgradation of port to higher bandwidth policies are outlined.
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Description
Learn about how the MPLS-based VPN model accommodates customers with overlapping address spaces, compared to traditional peer-to-peer models. Understand how customer routing information is exchanged between the MPLS VPN backbone and customer sites.
