Displaying OSPFv2 results

Use one or more of the following commands to verify OSPFv2 information. Using the show ip ospf command is optional, and the variations of the command can be entered in any order.

In privileged EXEC mode, enter the show ip ospf command to display general OSPFv2 information.

device# show ip ospf 

show ip ospf
OSPF Version                  Version 2
Router Id                     32.32.32.32
ASBR Status                   No
ABR Status                    No         (0)
Redistribute Ext Routes from
Initial SPF schedule delay    0          (msecs)
Minimum hold time for SPFs    0          (msecs)
Maximum hold time for SPFs    0          (msecs)
External LSA Counter          0
External LSA Checksum Sum     0
Originate New LSA Counter     9
Rx New LSA Counter            5
External LSA Limit            14913080
Administrative Distance
  -  External Routes:         110
  -  Intra Area Routes:       110
  -  Inter Area Routes:       110
Database Overflow Interval    0
Database Overflow State :     NOT OVERFLOWED
RFC 1583 Compatibility :      Disabled
NSSA Translator:              Enabled
Nonstop Routing:              Disabled
Graceful Restart              Enabled
Graceful Restart Helper       Enabled
Graceful Restart Time         120
LDP-SYNC: Not globally enabled
Interfaces with LDP-SYNC enabled:
    None

The example output displays general OSPFv2 information and indicates that the device is not operating as an ASBR. If the device is not operating as an ASBR, there is no information about redistribution in the output.

Enter the show ip ospf area command to display information about an OSPFv2 area.

device# show ip ospf area

Number of Areas is 1

Index   Area             Type   Cost       SPFR       ABR   ASBR  LSA     Chksum(Hex)
1       0                normal 0          482        0     0     1       00006828

The example output displays detailed output for OSPFv2 Area 0.

Enter the show ip ospf interface command to display OSPFv2 interface information.

device# show ip ospf interface

Ethernet 1/8 admin up, oper up
     IP Address 10.1.8.32, Area 0
     BFD is disabled
     Database Filter: Not Configured
     State DR, Pri 1, Cost 1, Options ------E-, Type broadcast Events 8
     Timers(sec): Transmit 1, Retrans 5, Hello 10, Dead 40
     DR:  Router ID 32.32.32.32       Interface Address 10.1.8.32
     BDR: Router ID 0.0.0.0           Interface Address 0.0.0.0
     Neighbor Count = 1, Adjacent Neighbor Count= 0
     Neighbor:         10.1.8.19 [id 19.19.19.18]
     Authentication-Key: None
     MD5 Authentication: Key None, Key-Id  None , Auth-change-wait-time 300
LDP-SYNC: Disabled, State: -

Loopback 1 admin up, oper up
     IP Address 32.32.32.32, Area 0
     BFD is disabled
     Database Filter: Not Configured
     State DR, Pri 1, Cost 1, Options ------E-, Type broadcast Events 2
     Timers(sec): Transmit 1, Retrans 5, Hello 10, Dead 40
     DR:  Router ID 32.32.32.32       Interface Address 32.32.32.32
     BDR: Router ID 0.0.0.0           Interface Address 0.0.0.0
     Neighbor Count = 0, Adjacent Neighbor Count= 0
     Authentication-Key: None
     MD5 Authentication: Key None, Key-Id  None , Auth-change-wait-time 300
LDP-SYNC: Disabled, State: -

The example output displays detailed output for OSPFv2 interfaces.

Enter the show ip ospf interface command with the brief parameter to display summarized OSPFv2 interface information.

device# show ip ospf interface brief
Interface       Area            IP Addr/Mask         Cost  State    Nbrs(F/C)
Eth 6/45        0               10.10.10.1/24        1     down     0/0
Ve 15           0               15.15.15.1/24        1     DR       0/0
Ve 161          0               161.161.161.1/24     1     DR       0/0
Ve 162          0               162.162.162.1/24     1     DR       0/0

The example output displays summarized output for OSPFv2 interfaces.

Enter the show ip ospf neighbor command to display OSPFv2 neighbor information for the device.

device# show ip ospf neighbor

Number of Neighbors is 1, in FULL state 0

Port           Address         Pri State      Neigh Address   Neigh ID        Ev      Opt Cnt
Eth 1/8        10.1.8.32       1   INIT/OTHER 10.1.8.19       19.19.19.18     7       66  0

The example output displays output for an OSPFv2 neighbor.

Enter the show ip ospf routes command to display information about OSPFv2 routes.

device# show ip ospf routes

OSPF Regular Routes 7:

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.1             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 1          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.2             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 2          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.3             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 3          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.4             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 4          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.5             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 5          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.6             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 6          0.0.0.0         OSPF      0  0

      Destination         Mask            Path_Cost Type2_Cost Path_Type
      1.1.1.7             255.255.255.255 1         0          Intra
      Adv_Router          Link_State      Dest_Type State      Tag       Flags
      1.1.1.1             1.1.1.1         Network   Valid      0          6
      Paths Out_Port      Next_Hop        Type      State
      1     Lo 7          0.0.0.0         OSPF      0  0

Enter the show ip ospf summary command to display summary output for OSPFv2 sessions.

device# show ip ospf summary

Seq Instance        Intfs   Nbrs    Nbrs-Full LSAs    Routes
1   default-vrf     2       1       0         1       2

Enter the show ip ospf summary all-vrfs total command to display cumulative summary output for OSPFv2 sessions.

device# show ip ospf summary all-vrfs total
--------------------------------------------- 
        IPv4 OSPF VRFs Summary Total 
--------------------------------------------- 
Number of VRFs: 1 
Number of Interfaces: 200 
Number of Neighbors: 200 
Number of Neighbors in Full state: 200 
Number of LSAs: 182600 
Number of Routes: 102600

Enter the show ip ospf traffic command to display OSPF traffic details.

device# show ip ospf traffic

                Packets Received         Packets Sent
Hello                       3943                 3936
Database                       6                    6
LSA Req                        1                    2
LSA Upd                       18                   20
LSA Ack                       17                   16
No Packet Errors!