Summary

	Networking and Routing presents an architectural aspect of communication networks that are useful in network routing.
	It also gives a brief explanation about routing architectures, service architecture, protocol architecture and also different technologies available in the routing.
	This encapsulation requires the local network or physical address.
	Numeric and symbolic Addresses generally involves the translation of the human friendly form (names) to the number address (IP Address).
	IP address is a unique identifier of a computer on TCP/IP networks and on the internet.
	Every computer requires a unique IP address to be a part of the internet and the IP address is provided by the internet service providers.
	On a same network segment, all the IP address share the same network address.
	The service architecture depends partly also on the communication paradigm of its information units.
	Every networking environment has service architecture, much like the postal delivery system.

Summary

	The IP network service transmits datagrams between intermediate nodes using IP routers.
	Other protocols associated with the IP network layer are the Internet Control Message Protocol (ICMP) and the Address Resolution Protocol (arp).
	The global addressing scheme is known as E.164 addressing.