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OSPF单区域_I和II类LSA

发表于 Valine：
本文字数： 8k 阅读时长 ≈ 7 分钟

域内OSPF详情

I类LSA

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[R2-ospf-1-area-0.0.0.0]`dis ospf lsdb router self-originate`  //查看I类LSA

	 OSPF Process 1 with Router ID 10.0.2.2
		         Area: 0.0.0.0
		 Link State Database 


  Type      : Router
  Ls id     : 10.0.2.2
  Adv rtr   : 10.0.2.2  //通告路由器，产生此条LSA的路由器的route id
  Ls age    : 582 
  Len       : 48 
  Options   :  E  
  seq#      : 80000007 
  chksum    : 0xb052
  Link count: 2
   * Link ID: 10.0.123.3   //DR接口的IP地址
     Data   : 10.0.123.2   //宣告这条LSA的路由器接口IP地址
     Link Type: TransNet     //拓扑信息，描述本路由器到一个MA网段
     Metric : 1
   * Link ID: 10.0.2.2     
     Data   : 255.255.255.255 
     Link Type: StubNet      //路由信息，描述本路由器到一个stub网段的连接
     Metric : 0 
     Priority : Medium

II类LSA

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<R3>`dis ospf lsdb network self-originate` 

	 OSPF Process 1 with Router ID 10.0.3.3
		         Area: 0.0.0.0
		 Link State Database 


  Type      : Network
  Ls id     : 10.0.123.3   //DR接口的IP的地址
  Adv rtr   : 10.0.3.3  
  Ls age    : 1380 
  Len       : 36 
  Options   :  E  
  seq#      : 80000009 
  chksum    : 0xee9c
  Net mask  : 255.255.255.0
  Priority  : Low
     Attached Router    10.0.3.3  //建立邻接关系的邻居的route-id
     Attached Router    10.0.1.1
     Attached Router    10.0.2.2

debugging（查看抢占过程）

  1. 由于DR和BDR为非抢占方式，根据设备配置的先后顺序可能导致DR为先启动的设备。
  2. DR和BDR是根据接口选举的
    • DR优先级越大越优先
    • 优先级相等时，route-id越大越优先
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<R3>terminal debugging 
Info: Current terminal debugging is on.
<R3>terminal monitor 
Info: Current terminal monitor is on.
<R3>debugging ospf 1 event 
<R3>sy
Enter system view, return user view with Ctrl+Z.
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]undo shut
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:21-08:00 R3 %%01IFPDT/4/IF_STATE(l)[6]:Interface GigabitEthern
et0/0/0 has turned into UP state.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:21-08:00 R3 %%01IFNET/4/LINK_STATE(l)[7]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:21.143.4-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802c Line: 1295 Level: 0x20
 
  OSPF 1: Intf 10.0.123.3 Rcv InterfaceUp State ` Down -> Waiting. `
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:21.143.5-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802c Line: 1409 Level: 0x20
 
  OSPF 1 Send Hello Interface Up on 10.0.123.3
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:55-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[8]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighbo
rEvent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:55-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[9]:Neighbor changes eve
nt: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighbo
rEvent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=2Way) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:55.73.3-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1136 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv HelloReceived State  ` Down -> Init ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:55.73.4-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1732 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv 2WayReceived State ` Init -> 2Way ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:56-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[10]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.123.0.10, Neighb
orEvent=HelloReceived, NeighborPreviousState=Down, NeighborCurrentState=Init) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:56.393.2-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1136 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.2 Rcv HelloReceived State Down -> Init.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:58-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[11]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighb
orEvent=AdjOk?, NeighborPreviousState=2Way, NeighborCurrentState=ExStart) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:58.653.3-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1732 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv AdjOk? State ` 2Way -> ExStart ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:58.653.4-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802c Line: 2096 Level: 0x20
 
  OSPF 1 Send Hello Interface State Changed on 10.0.123.3
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:22:58.653.5-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802c Line: 2107 Level: 0x20
 
  OSPF 1: Intf 10.0.123.3 Rcv WaitTimer State ` Waiting -> DR ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:03-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[12]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.123.0.10, Neighb
orEvent=2WayReceived, NeighborPreviousState=Init, NeighborCurrentState=ExStart) 

[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:03-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[13]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.123.0.10, Neighb
orEvent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exc
hange) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:04-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[14]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.123.0.10, Neighb
orEvent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loadi
ng) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:04-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[15]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=2.123.0.10, Neighb
orEvent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:03.923.1-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1732 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.2 Rcv 2WayReceived State Init -> ExStart.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:03.963.1-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1845 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.2 Rcv NegotiationDone State ` ExStart -> Exchange ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:04.13.1-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1957 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.2 Rcv ExchangeDone State ` Exchange -> Loading `.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:04.13.2-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 2356 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.2 Rcv LoadingDone State  ` Loading -> Full ` .
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[16]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighb
orEvent=NegotiationDone, NeighborPreviousState=ExStart, NeighborCurrentState=Exc
hange) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09.633.2-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1845 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv NegotiationDone State ExStart -> Exchange.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09.683.1-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 1957 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv ExchangeDone State Exchange -> Loading.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09.683.2-08:00 R3 RM/6/RMDEBUG:
 FileID: 0xd017802d Line: 2356 Level: 0x20
 
  OSPF 1: Nbr 10.0.123.1 Rcv LoadingDone State Loading -> Full.
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[17]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighb
orEvent=ExchangeDone, NeighborPreviousState=Exchange, NeighborCurrentState=Loadi
ng) 
[R3-GigabitEthernet0/0/0]
Aug  5 2021 10:23:09-08:00 R3 %%01OSPF/4/NBR_CHANGE_E(l)[18]:Neighbor changes ev
ent: neighbor status changed. (ProcessId=256, NeighborAddress=1.123.0.10, Neighb
orEvent=LoadingDone, NeighborPreviousState=Loading, NeighborCurrentState=Full) 
[R3-GigabitEthernet0/0/0]

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