Hardware Networking

Question 1

What is MPLS line?

Answer 1

Multi-protocol label switching (MPLS), is a networking technology that routes traffic using the shortest path based on “labels,” rather than network addresses, to handle forwarding over private wide area networks.
It able virtual private network between office in different regions, geography. It have router in the each office and MPLS line in provided by the ISP provider like du, etisalat, airtel, jio, vodafone, mtnl etc.
It is a tried and true networking technology that has powered enterprise networks for over two decades.

Question 2

What is SD-WAN?

Answer 2

A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows enterprises to leverage any combination of transport services—including MPLS, LTE and broadband internet services—to securely connect users to applications.
https://www.arubanetworks.com/wp-content/uploads/topic-overview_module_diagram_640x605.jpeg

Question 3

What the difference between SD-WAN and Site-to-Site VPN connection?

Answer 3

SD-WAN enables optimized traffic routing over multiple transport media, while VPNs are typically designed to send all traffic over a single network link.

Question 4

Is traffic on the MPLS encrypted?

Answer 4

No, by default MPLS traffic is not encrypted. You need SD-WAN solution to encrypted data

Question 5

What are different type of WAN connections?

Answer 5

Broadband internet, LTE, 4G or MPLS

Question 6

What is reliability of SD-WAN over VPN?

Answer 6

Both SD-WAN and VPN are very secure systems, however, SD-WAN offers a failover security feature that VPN does not. SD-WAN automatically fixes a service failure or outage by taking control of your IP address and transferring it from one network to another.

Question 7

What is VSAT Communication?

Answer 7

A VSAT communication system with a two-way satellite dish antenna is often the ideal solution to connect modular data centers in remote locations to the enterprise. VSAT equipment can be deployed quickly and connect your data center to broadband data communications, regardless of the local network infrastructure available.
MPLS allows satellite networks to connect with terrestrial networks effectively, for efficient and secure communication.

Question 8

What are different type of SD-WAN connection architecture?

Answer 8

https://docs.microsoft.com/en-us/azure/virtual-wan/sd-wan-connectivity-architecture