OSPF故障处理.ppt

OSPF故障处理,Page1,前言,本课程介绍OSPF常见故障处理。通过处理OSPF的常见故障，可以加深对OSPF协议原理的理解。,Page2,培训目标,学完本课程后，您应该能：掌握常用OSPF故障处理工具的使用掌握常见OSPF故障的处理方法,Page3,目录,OSPF邻居关系故障OSPF区域间路由故障,Page4,检查邻居关系故障的思路,使用“displayospferror”查看错误，定位错误,使用“displaycurrent-configuration”命令查看相关配置,修正配置错误,Page5,故障描述缺少区域内路由,Loopback0,/32,RTA,RTB,Loopback0,/32,E0/0,E0/0,/30,/30,Area1,RTBdisplayiprouting-tableRoutingTable:publicnetDestination/MaskProtocolPreCostNexthopInterface/32DIRECT00InLoopBack0/24DIRECT00Ethernet0/0/32DIRECT00InLoopBack0/8DIRECT00InLoopBack0/32DIRECT00InLoopBack0,Page6,查看OSPF错误信息RouterID冲突,RTBdisplayospferrorOSPFProcess1withRouterIDOSPFerrorstatistics:Generalpacketerrors:0:IP:receivedmyownpacket0:Badpacket0:Badversion0:Badchecksum0:Badareaid0:Droponunnumberedinterface0:Badvirtuallink0:Badauthenticationtype0:Badauthenticationkey0:Packettoosmall0:Packetsizeiplength0:Transmiterror0:Interfacedown0:UnknownneighborHELLOpacketerrors:0:Netmaskmismatch0:Hellotimermismatch0:Deadtimermismatch0:Externoptionmismatch24:Routeridconfusion0:Virtualneighborunknown0:NBMAneighborunknownDDpacketerrors:0:Neighborstatelow0:Routeridconfusion0:Externoptionmismatch0:UnknownLSAtype0:MTUoptionmismatchLSACKpacketerrors:0:Neighborstatelow0:Badack-More(PressQtobreak)-,Page7,查看OSPF相关配置,RTBdisplaycurrent-configuration#sysnameRTB#FTPserverenable#l2tpdomainsuffix-separator#routerid#radiusschemesystem,RTAdisplaycurrent-configuration#sysnameRTA#FTPserverenable#l2tpdomainsuffix-separator#routerid#radiusschemesystem,Page8,查看OSPF错误信息AreaID不匹配,RTBdisplayospferrorOSPFProcess1withRouterIDOSPFerrorstatistics:Generalpacketerrors:0:IP:receivedmyownpacket0:Badpacket0:Badversion0:Badchecksum10:Badareaid0:Droponunnumberedinterface0:Badvirtuallink0:Badauthenticationtype0:Badauthenticationkey0:Packettoosmall0:Packetsizeiplength0:Transmiterror0:Interfacedown0:UnknownneighborHELLOpacketerrors:0:Netmaskmismatch0:Hellotimermismatch0:Deadtimermismatch0:Externoptionmismatch0:Routeridconfusion0:Virtualneighborunknown0:NBMAneighborunknownDDpacketerrors:0:Neighborstatelow0:Routeridconfusion0:Externoptionmismatch0:UnknownLSAtype0:MTUoptionmismatchLSACKpacketerrors:0:Neighborstatelow0:Badack-More(PressQtobreak)-,Page9,查看OSPF相关配置,RTAdisplaycurrent-configurationconfigurationospf#ospf1areanetworknetwork#return,RTBdisplaycurrent-configurationconfigurationospf#ospf1areanetworknetwork#return,Page10,查看OSPF错误信息网络掩码不一致,RTBdisplayospferrorOSPFProcess1withRouterIDOSPFerrorstatisticsGeneralpacketerrors:0:IP:receivedmyownpacket0:Badpacket0:Badversion0:Badchecksum0:Badareaid0:Droponunnumberedinterface0:Badvirtuallink0:Badauthenticationtype0:Badauthenticationkey0:Packettoosmall0:Packetsizeiplength0:Transmiterror0:Interfacedown0:UnknownneighborHELLOpacketerrors:10:Netmaskmismatch0:Hellotimermismatch0:Deadtimermismatch0:Externoptionmismatch0:Routeridconfusion0:Virtualneighborunknown0:NBMAneighborunknownDDpacketerrors:0:Neighborstatelow0:Routeridconfusion0:Externoptionmismatch0:UnknownLSAtype0:MTUoptionmismatchLSACKpacketerrors:0:Neighborstatelow0:Badack-More(PressQtobreak)-,Page11,查看OSPF相关配置,RTBdisplaycurrent-configuration#interfaceEthernet0/0ipaddress#ospf1areanetworknetwork55#return,RTAdisplaycurrent-configuration#interfaceEthernet0/0ipaddress52#ospf1areanetworknetwork#return,Page12,查看OSPF错误信息验证类型不一致,RTBdisplayospferrorOSPFProcess1withRouterIDOSPFerrorstatisticsGeneralpacketerrors:0:IP:receivedmyownpacket0:Badpacket0:Badversion0:Badchecksum0:Badareaid0:Droponunnumberedinterface0:Badvirtuallink2:Badauthenticationtype0:Badauthenticationkey0:Packettoosmall0:Packetsizeiplength0:Transmiterror0:Interfacedown0:UnknownneighborHELLOpacketerrors:0:Netmaskmismatch0:Hellotimermismatch0:Deadtimermismatch0:Externoptionmismatch0:Routeridconfusion0:Virtualneighborunknown0:NBMAneighborunknownDDpacketerrors:0:Neighborstatelow0:Routeridconfusion0:Externoptionmismatch0:UnknownLSAtype0:MTUoptionmismatchLSACKpacketerrors:0:Neighborstatelow0:Badack-More(PressQtobreak)-,Page13,查看OSPF相关配置,RTAdisplaycurrent-configurationconfigurationospf#ospf1areanetworknetworkauthentication-modemd51plainhuawei#return,RTBdisplaycurrent-configurationconfigurationospf#ospf1areanetworknetworkauthentication-modesimpleplainhuawei#return,Page14,查看OSPF错误信息验证密码不一致,RTBdisplayospferrorOSPFProcess1withRouterIDOSPFerrorstatisticsGeneralpacketerrors:0:IP:receivedmyownpacket0:Badpacket0:Badversion0:Badchecksum0:Badareaid0:Droponunnumberedinterface0:Badvirtuallink0:Badauthenticationtype2:Badauthenticationkey0:Packettoosmall0:Packetsizeiplength0:Transmiterror0:Interfacedown0:UnknownneighborHELLOpacketerrors:0:Netmaskmismatch0:Hellotimermismatch0:Deadtimermismatch0:Externoptionmismatch0:Routeridconfusion0:Virtualneighborunknown0:NBMAneighborunknownDDpacketerrors:0:Neighborstatelow0:Routeridconfusion0:Externoptionmismatch0:UnknownLSAtype0:MTUoptionmismatchLSACKpacketerrors:0:Neighborstatelow0:Badack-More(PressQtobreak)-,Page15,查看OSPF相关配置,RTAdisplaycurrent-configurationinterfaceEthernet0/0#interfaceEthernet0/0ipaddress52ospfauthentication-modesimpleplainhuawei#return,RTBdisplaycurrent-configurationinterfaceEthernet0/0#interfaceEthernet0/0ipaddress52ospfauthentication-modesimpleplainhello#return,Page16,故障描述NBMA网络无法学习路由,FR-SW,/24,/24,DLCI=201,DLCI=102,S1/0,S1/0,Area1,Loopback0,/32,RTA,RTB,Loopback0,/32,RTAdisplayiprouting-tableRoutingTable:publicnetDestination/MaskProtocolPreCostNexthopInterface/32DIRECT00InLoopBack0/24DIRECT00Serial1/0/32DIRECT00InLoopBack0/32DIRECT00Serial1/0/8DIRECT00InLoopBack0/32DIRECT00InLoopBack0,Page17,查看NBMA静态邻居配置,RTAdisplaycurrent-configurationconfigurationospf#ospf1peerareanetworknetwork55#return,RTBdisplaycurrent-configurationconfigurationospf#ospf1peerareanetworknetwork55#return,Page18,邻居关系无法建立原因总结,Page19,目录,OSPF邻居关系故障OSPF区域间路由故障,Page20,故障描述区域间路由不正确,S0,S1,S2,S0,S0,S1,RTA,RTB,RTC,/30,/30,/30,/30,/30,/30,Area0,Area1,Area2,Page21,故障描述区域间路由不正确,RTAdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/30Direct00Serial/32Direct00Serial/32Direct00InLoopBack0,RTBdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial/32Direct00InLoopBack0/32Direct00Serial/30OSPF103124Serial0,Page22,修改OSPF配置,RTBdisplaycurrent-configurationconfigurationospf#ospf1areanetworkareanetworkvlink-peer#return,RTCdisplaycurrent-configurationconfigurationospf#ospf1areanetworkvlink-peerareanetwork#return,Page23,查看路由表,RTAdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/30Direct00Serial/32Direct00Serial/32Direct00InLoopBack0,RTBdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial/32Direct00InLoopBack0/32Direct00Serial/30OSPF103124Serial0OSPF103124Serial1,Page24,修改OSPF配置,RTAdisplaycurrent-configurationconfigurationospf#ospf1areanetworkareanetworkvlink-peer#return,RTCdisplaycurrent-configurationconfigurationospf#ospf1areanetworkvlink-peerareanetworkvlink-peer#return,Page25,查看路由表,RTAdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0OSPF103124Serial/30Direct00Serial/32Direct00Serial/32Direct00InLoopBack0,RTBdisplayiprouting-tableRoutingTables:PublicDestination/MaskProtoPreCostNextHopInterface/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/30Direct00Serial/32Direct00InLoopBack0/32Direct00Serial/30OSPF103124Serial0OSPF103124Serial1,Page26,Loopback2,/32,故障描述路由汇聚不正确,S2,S0,S0,RTA,RTB,/30,/30,Area0,Area1,S2,/30,/30,RTD,RTC,S0,S1,S0,S1,/30,/30,/30,/30,Loopback1,/32,Page27,故障描述路由汇聚不正确,RTAdisplayiprouting-tableRoutingTables:PublicDestinations:13Routes:13Destination/MaskProtoPreCostNextHopInterface/30Direct00Serial/32Direct00InLoopBack0/32Direct00Serial/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial/30OSPF103124Serial0/24OSPF103125Serial0/32OSPF103125Serial/32OSPF103125Serial2/8Direct00InLoopBack0/32Direct00InLoopBack0,Page28,故障描述路由汇聚不正确,RTDdisplayiprouting-tableRoutingTables:PublicDestinations:13Routes:13Destination/MaskProtoPreCostNextHopInterface/30Direct00Serial/32Direct00Serial/32Direct00InLoopBack0/30OSPF103124Serial/30Direct00Serial0/32Direct00InLoopBack0/32Direct00Serial0/30OSPF103124Serial0/24OSPF104687Serial/32OSPF101563Serial0/32OSPF101563Serial0/8Direct00InLoopBack0/32Direct00InLoopBack0,Page29,故障描述路由汇聚不正确,RTCdisplayiprouting-tableRoutingTables:PublicDestinations:13Routes:13Destination/MaskProtoPreCostNextHopInterface/30OSPF103124Serial/30OSPF103124Serial0/30Direct00Serial/32Direct00Serial/32Direct00InLoopBack0/30Direct00Serial0/32Direct00Serial0/32Direct00InLoopBack0/24OSPF106249Serial/32Direct00InLoopBack0/32Direct00InLoopBack0/8Direct00InLoopBack0/32Direct00InLoopBack0,Page30,查看路由汇聚相关配置,RTBdisplaycurrent-configurationconfigurationospf#ospf1areanetworkareaabr-summarynetwork#return,RTDdisplaycurrent-configurationconfigurationospf#ospf1areanetworkareanetwork#return,Page31,故障描述路由汇聚不正确,Loopback2,/32,S0,S1,/30,/30,Loopback1,/32,RTA,S0,S0,/30,/30,S2,/30,S3,/30,RTB,RTC,RTD,RTE,S3,S3,/30,/30,Area0,Area1,Area2,Page32,故障描述路由汇聚不正确,RTAdisplayiprouting-tableprotocolospfPublicRoutingTable:OSPFDestination/MaskProtoPreCostNextHopInterface/30OSPF103124Serial0/30OSPF104686Serial0/30OSPF106248Serial0/24OSPF103125Serial0/32OSPF106249Serial0/32OSPF106249Serial0,RTEdisplayiprouting-tableprotocolospfPublicRoutingTable:OSPFDestination/MaskProtoPreCostNextHopInterface/30OSPF106248Serial3/30OSPF104686Serial3/30OSPF103124Serial3/32OSPF103125Serial3/32OSPF103125Serial3,Page33,查看OSPF相关配置,RTBdisplaycurrent-configurationconfigurationospf#ospf1areanetworkareaabr-summarynetworkvlink-peer#return,RTCdisplaycurrent-configurationconfigurationospf#ospf1areanetworkvlink-peerareanetwork#return,Page34,查看RTC的LSDBArea0,RTCdisplayospflsdbOSPFProcess1withRouterIDLinkStateDatabaseArea:TypeLinkStateIDAdvRouterAgeLenSequenceMetricRouter4083680