Routed Versus Routing Protocols

Routed Protocols

Routed Protocols are layer 3 Network Layer protocols. They include Internet Protocol (IP), Internetwork Packet Exchange (IPX) and Apple's AppleTalk. Routed or routable protocols allow for internetwork communication by assigning network and host identities to packets, without routed protocols network communication would be restricted to the local segment.

Routing Protocols

Routing Protocols are protocols that enable routers to communicate with one another in order to maintain their routing tables. These routing tables help them deliver routed protocols across networks.

Routing Protocols can be divided into Distance Vector and Link State routing protocols.

Examples of Distance Vector routing protocols include RIP and IGRP and Link State Routing protocols include OSPF.

Within a network you may have more than one routed protocol. For example you may have Apple Macs and Microsoft Windows machines. For these to communicate you require both IP and AppleTalk to be enabled. Fortunately most routers support multiprotocol routing, although due to excess routing updates this can cause problems.

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