AI, ML, Development + Cisco Learning Blog Learning about Machine Learning, Artificial Intelligence, related devlopment topics and formerly Routing and Switching, Datacenter, Security and other topics, CCIE #23664, Frank Wagner

19. Juli 2006

redistribution and metrics

Filed under: IGP Routing — ocsic @ 10:35

With redistribution it is necessary to take care of metrics from different routing protocols.

RIP uses Hop count

EIGRP uses a composition of bandwidth and delay

OSPF uses bandwidth

BGP consists of an arbitrary unit number

It is important to know how to adjust the metrics for redistributed routing protocols. Because they are not compatible by default, it necessary to convert them between the protocols.

OSPF has two differnet external metric types. Type 1 adds the metric defined in the OSPF domain to the metric of the boarder router. Type 2 ignore internal metric in the OSPF domain.

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