Describe multisource agreements (MSA), including where it is used in a network, and why it is needed.

What will be an ideal response?

There was a hodgepodge of 10 GbE types that might have been the ultimate disaster for hardware manufacturers. The 10 GbE industry simply chose not to define the connector types and instead devised a very clever, very simple concept called multisource agreements (MSAs): agreements among multiple manufacturers to make interoperable devices and standards. A transceiver based on an MSA plugs into your 10 GbE equipment, enabling you to convert from one media type to another by inserting the right transceiver.