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Transcript
ROUTING PROTOCOL IGRP REVIEW Purpose of Router – determine best path to destination – pass the frames to the destination Protocols – routed - used by hosts, can be directed or routed – routing -used by routers, directs routed data to the destination – examples - RIP, IGRP PATH DETERMINATION Determine path for data to be delivered to the destination – strip off data link frame to examine packet – reads destination address of packet Routing Table – contains routes to various networks – contains metrics for each route – default next hop CONTINUED Use metrics to compare routes – hop count – bandwidth – delay – cost – load – ticks – reliability ADDRESSING Passing frames to the destination through routers – IP address of source and destination maintained – MAC address of next hop is used to reframe data packet – At destination network router destination host MAC address is used to reframe data packet REVIEW What is the difference between routed and routing protocols? What is a metric? What MAC address is used when passing data between routers? What address remains constant through the routing process?