Routing Protocols Mashup!
So as a newbie (still am) to some of the concepts I asked my self why a business would use different routing protocols (i.e. one department uses OSPF and another uses EIRGP). It sounded like unnecessary confusion but it was really my brain complicating things for me thinking its making simple for me when In reality it was already simplified. Businesses use different routing protocols because different parts of the network have different needs, equipment, or history. Such as legacy equipment that may not be compatible with more contemporary routing protocols, vendor specifications, and even department size. All that said, no one protocol is a end all be all for any network. So understanding the purpose behind them is pivotal to building, maintaining and expanding a network! I'm open to any additions or corrections if I am mistaken! I would hate to give wrong information!