AliceArisugawa

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OSPF関連コマンド　-超基本確認コマンド4つ-

NW-Tech memo

★ネイバーup時のコンソールログ

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%OSPF-5-ADJCHG: Process 2, Nbr 1.1.1.1 on Ethernet0/1 from LOADING to FULL, Loading Done
	!! ネイバーのアドレス on 自分のIF
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★ネイバーの確認
# show ip ospf neighbor

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R1#sh ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
2.2.2.2           1   FULL/BDR        00:00:38    192.168.0.2     Ethernet0/0
R1#

R2#sh ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
1.1.1.1         100   FULL/DR         00:00:36    192.168.0.1     Ethernet0/1
R2#
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★ネイバーup時のデバッグ
# debug ip ospf events

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R2#deb ip ospf ev
OSPF events debugging is on
R2#
*Mar  1 00:03:56.035: OSPF: Rcv hello from 1.1.1.1 area 0 from Ethernet0/1 192.168.0.1
*Mar  1 00:03:56.035: OSPF: End of hello processing
*Mar  1 00:03:56.039: OSPF: Rcv DBD from 1.1.1.1 on Ethernet0/1 seq 0x2077 opt 0x52 flag 0x7 len 32  mtu 1500 state 2WAY
*Mar  1 00:03:56.039: OSPF: Nbr state is 2WAY
*Mar  1 00:03:56.759: OSPF: end of Wait on interface Ethernet0/1
*Mar  1 00:03:56.759: OSPF: DR/BDR election on Ethernet0/1
*Mar  1 00:03:56.759: OSPF: Elect BDR 2.2.2.2
*Mar  1 00:03:56.759: OSPF: Elect DR 2.2.2.2
*Mar  1 00:03:56.759: OSPF: Elect BDR 1.1.1.1
*Mar  1 00:03:56.759: OSPF: Elect DR 2.2.2.2
*Mar  1 00:03:56.759:        DR: 2.2.2.2 (Id)   BDR: 1.1.1.1 (Id)
*Mar  1 00:03:56.763: OSPF: Send DBD to 1.1.1.1 on Ethernet0/1 seq 0x261D opt 0x52 flag 0x7 len 32
*Mar  1 00:03:56.763: OSPF: Send hello to 224.0.0.5 area 0 on Ethernet0/1 from 192.168.0.2
*Mar  1 00:03:56.795: OSPF: Rcv DBD from 1.1.1.1 on Ethernet0/1 seq 0x261D opt 0x52 flag 0x2 len 52  mtu 1500 state EXSTART
*Mar  1 00:03:56.795: OSPF: NBR Negotiation Done. We are the MASTER
*Mar  1 00:03:56.795: OSPF: Send DBD to 1.1.1.1 on Ethernet0/1 seq 0x261E opt 0x52 flag 0x3 len 52
*Mar  1 00:03:56.799: OSPF: Database request to 1.1.1.1
*Mar  1 00:03:56.799: OSPF: sent LS REQ packet to 192.168.0.1, length 12
*Mar  1 00:03:56.835: OSPF: Rcv DBD from 1.1.1.1 on Ethernet0/1 seq 0x261E opt 0x52 flag 0x0 len 32  mtu 1500 state EXCHANGE
*Mar  1 00:03:56.835: OSPF: Send DBD to 1.1.1.1 on Ethernet0/1 seq 0x261F opt 0x52 flag 0x1 len 32
*Mar  1 00:03:56.859: OSPF: Rcv DBD from 1.1.1.1 on Ethernet0/1 seq 0x261F opt 0x52 flag 0x0 len 32  mtu 1500 state EXCHANGE
*Mar  1 00:03:56.859: OSPF: Exchange Done with 1.1.1.1 on Ethernet0/1
*Mar  1 00:03:56.859: OSPF: Synchronized with 1.1.1.1 on Ethernet0/1, state FULL
*Mar  1 00:03:56.863: %OSPF-5-ADJCHG: Process 2, Nbr 1.1.1.1 on Ethernet0/1 from LOADING to FULL, Loading Done
R2#
R2#
*Mar  1 00:04:06.019: OSPF: Rcv hello from 1.1.1.1 area 0 from Ethernet0/1 192.168.0.1
*Mar  1 00:04:06.019: OSPF: Neighbor change Event on interface Ethernet0/1
*Mar  1 00:04:06.019: OSPF: DR/BDR election on Ethernet0/1
*Mar  1 00:04:06.019: OSPF: Elect BDR 1.1.1.1
*Mar  1 00:04:06.023: OSPF: Elect DR 2.2.2.2
*Mar  1 00:04:06.023:        DR: 2.2.2.2 (Id)   BDR: 1.1.1.1 (Id)
*Mar  1 00:04:06.023: OSPF: End of hello processing
*Mar  1 00:04:06.763: OSPF: Send hello to 224.0.0.5 area 0 on Ethernet0/1 from 192.168.0.2
R2#
*Mar  1 00:04:16.027: OSPF: Rcv hello from 1.1.1.1 area 0 from Ethernet0/1 192.168.0.1
*Mar  1 00:04:16.027: OSPF: End of hello processing
*Mar  1 00:04:16.763: OSPF: Send hello to 224.0.0.5 area 0 on Ethernet0/1 from 192.168.0.2
R2#
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★OSPF IFの状態確認
# show ip ospf interface
!! OSPFが動いているIFを表示する
!! AddressRange,ProcessID,RouterID,Costなどを見る
!! Costは計算式あるっぽいけど今は Serial=1,Eth=10,Giga=100,Ten=1000 と覚えとく
!! Passive Interfaceは No Hellos とでる

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R1#sh ip ospf int
Ethernet0/3 is up, line protocol is up
  Internet Address 172.16.1.254/24, Area 0
  Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State WAITING, Priority 1
  No designated router on this network
  No backup designated router on this network
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    No Hellos (Passive interface)
    Wait time before Designated router selection 00:00:26
  Supports Link-local Signaling (LLS)
  Index 3/3, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 0, maximum is 0
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 0, Adjacent neighbor count is 0
  Suppress hello for 0 neighbor(s)
Loopback0 is up, line protocol is up
  Internet Address 1.1.1.1/32, Area 0
  Process ID 1, Router ID 1.1.1.1, Network Type LOOPBACK, Cost: 1
  Loopback interface is treated as a stub Host
Ethernet0/0 is up, line protocol is up
  Internet Address 192.168.0.1/24, Area 0
  Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State BDR, Priority 1
  Designated Router (ID) 2.2.2.2, Interface address 192.168.0.2
  Backup Designated router (ID) 1.1.1.1, Interface address 192.168.0.1
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:07
  Supports Link-local Signaling (LLS)
  Index 1/1, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 2.2.2.2  (Designated Router)
  Suppress hello for 0 neighbor(s)
R1#
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