Book Recommendations for a Deeper Understanding Of Large Scale Network Design

I am looking for recommendations for books to deepen my understanding of fundamental networking protocols and architecting large scale networks. I am a software engineer that has been working in networking for the past 10 years. While I have a decent understanding of the protocols used in our network (ISIS, BGP, MPLS, GRE, etc), I tend to get lost in conversations where the design of the network or behavior of deployed protocols is discussed. Can anyone suggest books I could pick up?