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1、Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Manipulating Routing UpdatesOperating a Network Using Multiple IP Routing Protocols Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Using Multiple IP Routing ProtocolsCisco Network Academy.All rights reserved.CCNP+BSCI v3.0Using Multipl
2、e Routing ProtocolsInterim during conversionApplication-specific protocols One size does not always fit all.Political boundaries Groups that do not work well with othersMismatch between devices Multivendor interoperability Host-based routersCisco Network Academy.All rights reserved.CCNP+BSCI v3.0Red
3、istributing Route InformationCisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Redistribution with Seed MetricCisco Network Academy.All rights reserved.CCNP+BSCI v3.0SummaryUsing multiple IP routing protocols can be a result of migrating
4、to a more advanced routing protocol,a multivendor environment,political boundaries,or device mismatch.The way that redistributed routes will appear in the routing table will vary depending on the protocols being redistributed and how they are redistributed.The seed metric is the metric associated wi
5、th the redistributed route and should make the route appear worse than any internal route.Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Redistribution Supports All ProtocolsRtrA(
6、config)#router ripRtrA(config-router)#redistribute?bgp Border Gateway Protocol(BGP)connected Connected eigrp Enhanced Interior Gateway Routing Protocol(EIGRP)isis ISO IS-IS iso-igrp IGRP for OSI networks metric Metric for redistributed routes mobile Mobile routes odr On Demand stub Routes ospf Open
7、Shortest Path First(OSPF)rip Routing Information Protocol(RIP)route-map Route map reference static Static routes Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Configuring Redistribution into RIPRtrA(config)#router ripRtrA(config-router)#redistribute ospf?Process IDRtrA(config-router)#redis
8、tribute ospf 1?match Redistribution of OSPF routes metric Metric for redistributed routes route-map Route map reference Default metric is infinity.Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Configuring Redistribution into OSPFDefau
9、lt metric is 20.Default metric type is 2.Subnets do not redistribute by default.RtrA(config)#router ospf 1RtrA(config-router)#redistribute eigrp?Autonomous system numberRtrA(config-router)#redistribute eigrp 100?metric Metric for redistributed routes metric-type OSPF/IS-IS exterior metric type for r
10、edistributed routes route-map Route map reference subnets Consider subnets for redistribution into OSPF tag Set tag for routes redistributed into OSPF Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Configuring Redistribution into EIGRP
11、RtrA(config)#router eigrp 100RtrA(config-router)#redistribute ospf?Process IDRtrA(config-router)#redistribute ospf 1?match Redistribution of OSPF routes metric Metric for redistributed routes route-map Route map reference Default metric is infinity.Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Bandwidth in kilobytes=10000Delay in tens of microseconds=100Reliability=255(maximum)Load=1(minimum)MTU=1500 bytesRedistributing into EIGRPCisco Network Academy.All rights reserved.CCNP+BSCI v3.0Cisco Network Academy.All rights reserved.CCNP+BSCI v3.0Redistributing into IS-IS