IP技术认证教材路由协议故障排除

1、中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部路由协议故障排除路由协议故障排除中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部第第2章章 ISIS协议故障协议故障第第3章章 BGP协议故障协议故障中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部 根据OSPF的工作机制，相应的故障处理分析流程为 1、相邻路由器是否建立邻居关系 2、区域内LSA收集，计算区域内路由是否正常 3、区域间路由计算 4、外部路由计算 在OSPF的配置过程中，最常见的故障是两台路相邻路由器不能正确建立邻居关系，而邻居关系建立

2、是路由学习的基础。 后续第一部分介绍OSPF邻居关系建立不成功的常见故障处理方法。第二部分介绍OSPF区域间路由故障的常见处理方法。前言前言中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部第第1节节 邻居关系故障邻居关系故障第第2节节 区域间路由故障区域间路由故障中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部接口网段是否一致 Router ID是否相同接口优先级是否为零确保同一网段上所有路由器的Router ID互不相同OSPF无法建立邻居确保邻居两端接口在同一网段Timer参数是否一致寻求技术支持 确保同一网段上各接口优先级至少有一个非零确保邻居两端接口时间间隔参数

3、一致问题解决吗问题解决吗问题解决吗问题解决吗结束否否否否是是否是是否是否否是是是认证信息是否一致确保邻居两端认证配置完全一致问题解决吗否是否是OSPF报文能否正确接收是否确保来自邻居的OSPF报文能够正确接收问题解决吗否是OSPF邻居关系故障处理流程邻居关系故障处理流程中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部OSPF邻居关系故障处理步骤邻居关系故障处理步骤步骤步骤步骤描述步骤描述参考命令参考命令1检查同一链路两端接口的网段是否一致？建立OSPF邻居时，Broadcast和NBMA接口应该在同一网段，建立邻居的链路两端可以ping通，且接口所属区域的区域ID、区域类型（包括N

4、ssa，Stub，Normal Area等）应保持一致。display current-conf interfaceping *.*.*.*2检查各接口的优先级是否有非零？Broadcast和NBMA类型的网段，各接口的优先级至少有一个是非零的，以确保能够正确的选举出DR。否则各邻居只能达到2-Way的邻居状态。display ospf interface3检查各路由器的Router ID是否互不相同？同一网段上所有路由器的Router ID应该互不相同，否则会产生无法预料的路由振荡。display ospf brief中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部OSPF邻居关

5、系处理步骤邻居关系处理步骤步骤步骤步骤描述步骤描述参考命令参考命令4接口的Timer等参数是否保持一致？创建邻居时，对应接口时间间隔参数必须保持一致，否则无法建立邻居。display ospf brief5接口的认证信息保持一致？创建邻居时，只有两端的认证配置完全一致时才能达到Full状态。display ospf briefdisplay current-conf interface6检查OSPF报文能否正确接收?有时OSPF的报文无法正确接收，原因有很多，情况也最复杂。debugging ospf packetdebugging ospf eventdisplay ospf error中国

6、电信云南公司网络运行维护部中国电信云南公司网络运行维护部拓扑描述拓扑描述Area0Area1CR1CR2Area2AR1AR/30/30/30/30LO: /32LO: /32LO: /32LO: /3/30Loopback1: /32Loopback2: /32Loopback3: /32Loopback1: /32Loopback2: /32Loopback3:

7、/32 在上述的拓扑中，按要求完成OSPF配置。正常状态下在CR1上用命令display ospf peer，显示结果应该是CR1有3个OSPF邻居。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部如何判断如何判断OSPF邻居关系故障邻居关系故障 但在本次配置中，用该命令显示结果如下： 通过该命令可以发现，CR1只与CR2成功建立邻居关系，与AR1和AR2没有建立邻居关系。根据OSPF邻居关系建立故障处理思路排除上述故障。CR1display ospf peer OSPF Process 1 with Router ID Neighbors Are

8、a interface (Ethernet1/0/0)s neighbors Router ID: Address: State: Full Mode:Nbr is Master Priority: 1 DR: BDR: MTU: 0 Dead timer due in 31 sec Neighbor is up for 00:10:16 Authentication Sequence: 0 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤1：检查接口网段：检查接口网段(1

9、/4) 由于CR1和AR1和AR2不能建立OSPF邻居关系，根据OSPF邻居关系建立故障处理流程，分别检查CR1与AR1和AR2对接接口的配置，看是否在同一网段。 CR1与AR1对接接口检查：CR1display current-configuration interface Ethernet 1/0/1#interface Ethernet1/0/1 ip address 52#returnAR1display current-configuration interface Ethernet 1/0/0#interface Ethernet1/0/

10、0 ip address 52#return中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤1：检查接口：检查接口网段网段(2/4) CR1与AR2对接接口检查： 经比较，CR1与AR1，CR1与AR2之间接口IP地址配置正确，属于同一网段。可以排除因接口IP地址配置错误而导致OSPF不能正确建立邻居关系的情况。CR1display current-configuration interface Ethernet 1/0/2#interface Ethernet1/0/2 ip address 255.255.2

11、55.252 #returnAR2display current-configuration interface Ethernet 1/0/0#interface Ethernet1/0/0 ip address 52#return中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤1：检查接口：检查接口网段网段(3/4) 除了查看配置外，也可以通过ping直接验证OSPF对接接口的IP连通性。CR1ping PING : 56 data bytes, press CTRL_C to break Re

12、ply from : bytes=56 Sequence=1 ttl=255 time=40 ms Reply from : bytes=56 Sequence=2 ttl=255 time=50 ms Reply from : bytes=56 Sequence=3 ttl=255 time=20 ms Reply from : bytes=56 Sequence=4 ttl=255 time=50 ms Reply from : bytes=56 Sequence=5 ttl=255 time=50 ms -

13、 ping statistics - 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 20/42/50 ms中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤1：检查接口：检查接口网段网段(4/4)CR1ping PING : 56 data bytes, press CTRL_C to break Reply from : bytes=56 Sequence=1 ttl=255 ti

14、me=30 ms Reply from : bytes=56 Sequence=2 ttl=255 time=10 ms Reply from : bytes=56 Sequence=3 ttl=255 time=20 ms Reply from : bytes=56 Sequence=4 ttl=255 time=10 ms Reply from : bytes=56 Sequence=5 ttl=255 time=20 ms - ping statistics - 5 packet(s) transmitte

15、d 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 10/18/30 ms中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(1/8) 在本案例中，各OSPF路由器是通过以太接口互联的，是需要选择DR和BDR的。存在因接口优先级为0而不能选择DR和BDR的可能，所以需要检查CR1和AR1、CR1和AR2之间互联接口的优先级。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(2/8) 查看CR1的

16、OSPF接口信息： CR1与AR1和AR2对接接口OSPF优先级正常。CR1display ospf interface OSPF Process 1 with Router ID Interfaces Area: (MPLS TE not enabled) IP Address Type State Cost Pri DR BDR Broadcast DR 1 1 Area: (MPLS TE not enabled) IP Address Type State Cost Pri DR BDR

17、 Broadcast DR 1 1 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(3/8) 查看AR1的OSPF接口信息： 通过该命令显示运行OSPF的接口中没有包括与CR1对接接口。AR1display ospf interface OSPF Process 1 with Router ID Interfaces Area: (MPLS TE not enabled) IP Address Type State Cost Pri DR BDR 2

18、 Broadcast BDR 1 1 Broadcast DR 1 1 Broadcast DR 1 1 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(4/8) 结果分析结果分析 通过该命令显示OSPF没有在与CR1对接的接口使能。需要检查AR1 OSPF配置。 通过同样的命令查看AR2接口的OSPF优先级，优先级正常，排除CR1和AR2之间因接口优先级设置而导致邻居关系

19、不能正常建立的可能。AR1display ospf interface Ethernet 1/0/0Info: The specified interface is not enabled in the current OSPF instance.中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(5/8) 故障处理故障处理：1. 查看AR1 OSPF配置： 通过该命令发现，在宣告与CR1对接接口Ethernet 1/0/0的接口网段时，通告网段为 ，实际应该通告网段 。AR

20、1display current-configuration configuration ospf#ospf 1 area network network network network network #return中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(6/8) 2. 修正AR1 OSPF配置：AR1ospf 1AR1-ospf-1

21、area 1AR1-ospf-1-area-undo network AR1-ospf-1-area-network AR1-ospf-1-area-quitAR1-ospf-1quit中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先级：检查各接口的优先级(7/8) 再次验证： 配置完成后，分别查看AR1和CR1的OSPF邻居状态。AR1display ospf peer OSPF Process 1 with Router ID N

22、eighbors Area interface (Ethernet1/0/0)s neighbors Router ID: Address: State: Full Mode:Nbr is Slave Priority: 1 DR: BDR: None MTU: 0 Dead timer due in 26 sec Neighbor is up for 00:00:23 Authentication Sequence: 0 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤2：检查各接口的优先

23、级：检查各接口的优先级(8/8)CR1display ospf peer OSPF Process 1 with Router ID Neighbors Area interface (Ethernet1/0/0)s neighbors Router ID: Address: State: Full Mode:Nbr is Master Priority: 1 DR: BDR: MTU: 0 Dead timer due in 30 sec Neighbor is up for

24、 01:04:30 Authentication Sequence: 0 通过查看，CR1与AR1邻居关系正常，CR1与AR1之间的故障排除。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤3：检查路由器的：检查路由器的Router ID(1/2) OSPF的Router ID一般都是手工指定，存在因疏忽而导致的Router ID冲突的情况。Router ID冲突也会导致邻居关系不能正常建立。 查看CR1和AR2的Router ID：CR1display router idRouterID:AR2display router idRouterID:4.4.4.

25、4中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤3：检查路由器的：检查路由器的Router ID(2/2) 结果分析结果分析 经比较，CR1与AR2 Router ID不相同，可排除因Router ID冲突而导致CR1和AR2不能正确建立邻居关系的可能。 说明说明 如果发现Router ID冲突，需要根据规划更改Router ID。为了使新的Router ID生效，需要在用户视图下面重启OSPF进程。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤4：检查接口：检查接口Timer(1/3) 在缺省的情况下，Timer参数信息都是缺省值，不会存在冲突。但

26、在现网中，为了加快OSPF的收敛，都需要调整OSPF的timer参数，存在配置不一致的可能。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤4：检查接口：检查接口Timer(2/3)CR1display ospf brief OSPF Process 1 with Router ID OSPF Protocol Information RouterID: Border Router: AREA Area: (MPLS TE not enabled) Authtype: None Area flag: Normal SPF sc

27、heduled Count: 14 ExChange/Loading Neighbors: 0 Interface: (Ethernet1/0/2) Cost: 1 State: DR Type: Broadcast MTU: 1500 Priority: 1 Designated Router: Backup Designated Router: Timers: Hello 10 , Dead 40 , Poll 120 , Retransmit 5 , Transmit Delay 1 检查CR1与AR2对接接口的Timer等参数信息：中

28、国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤4：检查接口：检查接口Timer(3/3)AR2display ospf brief OSPF Process 1 with Router ID OSPF Protocol Information Area: (MPLS TE not enabled) Authtype: None Area flag: Normal SPF scheduled Count: 6 ExChange/Loading Neighbors: 0 Interface: (Ethernet1/0/0) Co

29、st: 1 State: DR Type: Broadcast MTU: 1500 Priority: 1 Designated Router: Backup Designated Router: Timers: Hello 10 , Dead 40 , Poll 120 , Retransmit 5 , Transmit Delay 1 通过比较，CR1和AR2 Timer参数设置一致，排除因Timer参数不一致而导致的CR1和AR2之间不能正确建立OSPF邻居关系的可能。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤5：检查接口认证信

30、息：检查接口认证信息(1/4)CR1display current-configuration interface Ethernet 1/0/2#interface Ethernet1/0/2 ip address 52 ospf authentication-mode simple plain Huawei#returnAR2display current-configuration interface Ethernet 1/0/0#interface Ethernet1/0/0 ip address 5

31、2 ospf authentication-mode simple plain huawei#return 为了保证OSPF的安全运行，经常会配置OSPF报文认证。认证的模式、密码本身都在配置中都很容易出错。 检查CR1与AR2对接接口的认证信息：中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤5：检查接口认证信息：检查接口认证信息(2/4)AR2interface Ethernet 1/0/0AR2-Ethernet1/0/0ospf authentication-mode simple Huawei 结果分析结果分析：通过对比发现CR1和AR2对接接口在配置验证信息时，

32、密码不一致。由此导致两端OSPF邻居不能正常建立。 故障处理：故障处理：更改AR2配置：中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤5：检查接口认证信息：检查接口认证信息(3/4) 配置完成后在CR1和AR2上分别查看OSPF邻居状态信息：CR1display ospf peer OSPF Process 1 with Router ID Neighbors Area interface (Ethernet1/0/2)s neighbors Router ID: Address: Stat

33、e: Full Mode:Nbr is Master Priority: 1 DR: BDR: MTU: 0 Dead timer due in 36 sec Neighbor is up for 00:01:31 Authentication Sequence: 0 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部步骤步骤5：检查接口认证信息：检查接口认证信息(4/4)AR2display ospf peer OSPF Process 1 with Router ID Neighbors Area interfa

34、ce (Ethernet1/0/0)s neighbors Router ID: Address: State: Full Mode:Nbr is Slave Priority: 1 DR: BDR: MTU: 0 Dead timer due in 37 sec Neighbor is up for 00:03:09 Authentication Sequence: 0 CR1和AR2之间邻居关系正常，故障排除。中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部利用利用OSPF错误错误报文报文统计

35、排除故障统计排除故障 通过前面介绍的方法，可以排除大部分OSPF邻居关系建立故障，但这种排除故障的方法比较机械、效率比较低。比如：CR1和AR2之间的故障是由因为认证信息不匹配引起的，有没有一种方法可以直接定位OSPF的故障呢？ VRP对产生的OSPF错误信息提供统计功能，通过查看OSPF的统计信息，可以快速定位故障。 命令：display ospf process-id error 中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部故障描述缺少区域内路由故障描述缺少区域内路由Loopback0/32RTARTBLoopback0/32E0/0E0/010

36、.1.1.1/30.2 Area 1RTBdisplay ip routing-table Routing Table: public netDestination/Mask Protocol Pre Cost Nexthop Interface/32 DIRECT 0 0 InLoopBack0/24 DIRECT 0 0 Ethernet0/0/32 DIRECT 0 0 InLoopBack0/8 DIRECT 0 0 InLoopBack0127

37、.0.0.1/32 DIRECT 0 0 InLoopBack0中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看查看OSPF错误信息错误信息ROUTER ID冲突冲突RTBdisplay ospf error OSPF Process 1 with Router ID OSPF packet error statistics: 0: IP: received my own packet 0: OSPF: wrong packet type 0: OSPF: wrong version 0: OSPF: wrong checksum 0: OS

38、PF: wrong area id 0: OSPF: area mismatch 0: OSPF: wrong virtual link 0: OSPF: wrong authentication type 0: OSPF: wrong authentication key 0: OSPF: too small packet 0: OSPF: packet size ip length 0: OSPF: transmit error 0: OSPF: interface down 0: OSPF: unknown neighbor 0: HELLO: netmask mismatch 0: H

39、ELLO: hello timer mismatch 0: HELLO: dead timer mismatch 0: HELLO: extern option mismatch 24: HELLO: router id confusion 0: HELLO: virtual neighbor unknown 0: HELLO: NBMA neighbor unknown 0: DD: neighbor state low 0: DD: router id confusion 0: DD: extern option mismatch 0: DD: unknown LSA type 0: LS

40、 ACK: neighbor state low 0: LS ACK: wrong ack 0: LS ACK: duplicate ack 0: LS ACK: unknown LSA type 0: LS REQ: neighbor state low 0: LS REQ: empty request 0: LS REQ: wrong request 0: LS UPD: neighbor state low 0: LS UPD: newer self-generate LSA 0: LS UPD: LSA checksum wrong 0: LS UPD: received less r

41、ecent LSA 0: LS UPD: unknown LSA type 0: OSPF routing: next hop not exist 0: DD: MTU option mismatch 0: ROUTETYPE: wrong type value 0: OPQ-9 : out of flooding scope 0: OPQ-10 : out of flooding scope 0: OPQ-11 : out of flooding scope 0: TE LSA : unrecognized contents 0: TE LSA : absence of (sub)TLV中国

42、电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看查看OSPF相关配置相关配置RTBdisplay current-configuration # sysname RTB# FTP server enable# l2tp domain suffix-separator # router id #radius scheme systemRTAdisplay current-configuration # sysname RTA# FTP server enable# l2tp domain suffix-separator # router id #radi

43、us scheme system中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看查看OSPF错误信息错误信息AREA ID不匹配不匹配RTBdisplay ospf error OSPF Process 1 with Router ID OSPF packet error statistics: 0: IP: received my own packet 0: OSPF: wrong packet type 0: OSPF: wrong version 0: OSPF: wrong checksum 0: OSPF: wrong area id 13: OSPF

44、: area mismatch 0: OSPF: wrong virtual link 0: OSPF: wrong authentication type 0: OSPF: wrong authentication key 0: OSPF: too small packet 0: OSPF: packet size ip length 0: OSPF: transmit error 0: OSPF: interface down 0: OSPF: unknown neighbor 0: HELLO: netmask mismatch 0: HELLO: hello timer mismatc

45、h 0: HELLO: dead timer mismatch 0: HELLO: extern option mismatch 0: HELLO: router id confusion 0: HELLO: virtual neighbor unknown 0: HELLO: NBMA neighbor unknown 0: DD: neighbor state low 0: DD: router id confusion 0: DD: extern option mismatch 0: DD: unknown LSA type 0: LS ACK: neighbor state low 0

46、: LS ACK: wrong ack 0: LS ACK: duplicate ack 0: LS ACK: unknown LSA type 0: LS REQ: neighbor state low 0: LS REQ: empty request 0: LS REQ: wrong request 0: LS UPD: neighbor state low 0: LS UPD: newer self-generate LSA 0: LS UPD: LSA checksum wrong 0: LS UPD: received less recent LSA 0: LS UPD: unkno

47、wn LSA type 0: OSPF routing: next hop not exist 0: DD: MTU option mismatch 0: ROUTETYPE: wrong type value 0: OPQ-9 : out of flooding scope 0: OPQ-10 : out of flooding scope 0: OPQ-11 : out of flooding scope 0: TE LSA : unrecognized contents 0: TE LSA : absence of (sub)TLV中国电信云南公司网络运行维护部中国电信云南公司网络运行维

48、护部查看查看OSPF相关配置相关配置RTAdisplay current-configuration configuration ospf #ospf 1 area network network #returnRTBdisplay current-configuration configuration ospf #ospf 1 area network network #return中国电信云南公司网络运行维护部中国电信云南公司网络运

49、行维护部查看查看OSPF错误信息网络掩码不一致错误信息网络掩码不一致RTBdisplay ospf error OSPF Process 1 with Router ID OSPF packet error statistics: 0: IP: received my own packet 0: OSPF: wrong packet type 0: OSPF: wrong version 0: OSPF: wrong checksum 0: OSPF: wrong area id 0: OSPF: area mismatch 0: OSPF: wrong virtual lin

50、k 0: OSPF: wrong authentication type 0: OSPF: wrong authentication key 0: OSPF: too small packet 0: OSPF: packet size ip length 0: OSPF: transmit error 0: OSPF: interface down 0: OSPF: unknown neighbor 9: HELLO: netmask mismatch 0: HELLO: hello timer mismatch 0: HELLO: dead timer mismatch 0: HELLO:

51、extern option mismatch 0: HELLO: router id confusion 0: HELLO: virtual neighbor unknown 0: HELLO: NBMA neighbor unknown 0: DD: neighbor state low 0: DD: router id confusion 0: DD: extern option mismatch 0: DD: unknown LSA type 0: LS ACK: neighbor state low 0: LS ACK: wrong ack 0: LS ACK: duplicate a

52、ck 0: LS ACK: unknown LSA type 0: LS REQ: neighbor state low 0: LS REQ: empty request 0: LS REQ: wrong request 0: LS UPD: neighbor state low 0: LS UPD: newer self-generate LSA 0: LS UPD: LSA checksum wrong 0: LS UPD: received less recent LSA 0: LS UPD: unknown LSA type 0: OSPF routing: next hop not

53、exist 0: DD: MTU option mismatch 0: ROUTETYPE: wrong type value 0: OPQ-9 : out of flooding scope 0: OPQ-10 : out of flooding scope 0: OPQ-11 : out of flooding scope 0: TE LSA : unrecognized contents 0: TE LSA : absence of (sub)TLV中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看查看OSPF相关配置相关配置RTBdisplay current-confi

54、guration #interface Ethernet0/0 ip address #ospf 1 area network network 55#returnRTAdisplay current-configuration #interface Ethernet0/0 ip address 52 #ospf 1 area network network 0.

55、0.0.3#return中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看查看OSPF错误信息验证类型不一致错误信息验证类型不一致RTBdisplay ospf error OSPF Process 1 with Router ID OSPF packet error statistics: 0: IP: received my own packet 0: OSPF: wrong packet type 0: OSPF: wrong version 0: OSPF: wrong checksum 0: OSPF: wrong area id 0: OSPF: ar

56、ea mismatch 0: OSPF: wrong virtual link 2: OSPF: wrong authentication type 0: OSPF: wrong authentication key 0: OSPF: too small packet 0: OSPF: packet size ip length 0: OSPF: transmit error 0: OSPF: interface down 0: OSPF: unknown neighbor 0: HELLO: netmask mismatch 0: HELLO: hello timer mismatch 0:

57、 HELLO: dead timer mismatch 0: HELLO: extern option mismatch 0: HELLO: router id confusion 0: HELLO: virtual neighbor unknown 0: HELLO: NBMA neighbor unknown 0: DD: neighbor state low 0: DD: router id confusion 0: DD: extern option mismatch 0: DD: unknown LSA type 0: LS ACK: neighbor state low 0: LS

58、 ACK: wrong ack 0: LS ACK: duplicate ack 0: LS ACK: unknown LSA type 0: LS REQ: neighbor state low 0: LS REQ: empty request 0: LS REQ: wrong request 0: LS UPD: neighbor state low 0: LS UPD: newer self-generate LSA 0: LS UPD: LSA checksum wrong 0: LS UPD: received less recent LSA 0: LS UPD: unknown L

59、SA type 0: OSPF routing: next hop not exist 0: DD: MTU option mismatch 0: ROUTETYPE: wrong type value 0: OPQ-9 : out of flooding scope 0: OPQ-10 : out of flooding scope 0: OPQ-11 : out of flooding scope 0: TE LSA : unrecognized contents 0: TE LSA : absence of (sub)TLV中国电信云南公司网络运行维护部中国电信云南公司网络运行维护部查看

60、查看OSPF相关配置相关配置RTAdisplay current-configuration configuration ospf #ospf 1 area network network authentication-mode md5 1 plain huawei#returnRTBdisplay current-configuration configuration ospf #ospf 1 area network network 0.0.0