Abstract
When a customer browses internet or sends files (upload/download), the request reaches the DNS (Domain Name System) in the network and does lookup for IP address of the corresponding URL (viz.,www.google.com). Then the request gets transformed to packets and traverses in the internet. The router builds the routing table for the packets based on the source ip and destination ip addresses of the packets. For better security purposes, we need to protect the data by way of encryption i.e. covering up of the packet. Hence we are hiding the information from the hackers. This can be implemented by cisco’s MPLS VPN (Multi Protocol Label Switching – Virtual Private Networks). The VPN network is formed by routes named vrf (virtual routing and forwarding). The vrf identifiers distinguish the routes between different customers landing the ISP (Internet Service Provider) routers. Apart from the existing network, the packets travel in an MPLS enabled ISP network. This results in better security, privacy, reliability, latency and enables fast transmission of data.
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