routable protocol

Definition of routable protocol in The Network Encyclopedia.

What is Routable Protocol?

Also called a routed protocol, a network protocol that supports routing of packets on an internetwork using their logical network layer (layer 3) addresses.

The most commonly used routable network protocols are as follows:

  • The TCP/IP suite used on the Internet
  • Novell’s IPX/SPX (or Microsoft’s equivalent NWLink IPX/SPX-Compatible Transport)
  • The legacy Xerox Network Systems (XNS)
  • Digital’s DECnet
  • Apple Computer’s AppleTalk suite
  • Banyan VINES
  • The Open Systems Interconnection (OSI) suite

Common network protocols that are not routable include the following:

  • NetBEUI
  • Data Link Control (DLC)