This command displays the information for the IFO object or virtual interface tables. The argument unit/slot/port corresponds to a physical routing interface or VLAN routing interface. The keyword vlan is used to specify the VLAN ID of the routing VLAN directly instead of a unit/slot/port format.
| Format | show ip ospf interface {unit/slot/port | vlan 1-4093 | loopback loopback-id} |
| Mode |
|
| Term | Definition |
|---|---|
| IP Address | The IP address for the specified interface. |
| Subnet Mask | A mask of the network and host portion of the IP address for the OSPF interface. |
| Secondary IP Address(es) | The secondary IP addresses if any are configured on the interface. |
| OSPF Admin Mode | States whether OSPF is enabled or disabled on a router interface. |
| OSPF Area ID | The OSPF Area ID for the specified interface. |
| OSPF Network Type | The type of network on this interface that the OSPF is running on. |
| Router Priority | A number representing the OSPF Priority for the specified interface. |
| Retransmit Interval | A number representing the OSPF Retransmit Interval for the specified interface. |
| Hello Interval | A number representing the OSPF Hello Interval for the specified interface. |
| Dead Interval | A number representing the OSPF Dead Interval for the specified interface. |
| LSA Ack Interval | A number representing the OSPF LSA Acknowledgment Interval for the specified interface. |
| Transmit Delay | A number representing the OSPF Transmit Delay Interval for the specified interface. |
| Authentication Type | The OSPF Authentication Type for the specified interface are: none, simple, and encrypt. |
| Metric Cost | The cost of the OSPF interface. |
| Passive Status | Shows whether the interface is passive or not. |
| OSPF MTU-ignore | Indicates whether to ignore MTU mismatches in database descriptor packets sent from neighboring routers. |
| Flood Blocking | Indicates whether flood blocking is enabled on the interface. |
The information below will only be displayed if OSPF is enabled.
| Term | Definition |
|---|---|
| OSPF Interface Type | Broadcast LANs, such as Ethernet and IEEE 802.5, take the value broadcast. The OSPF Interface Type will be 'broadcast'. |
| State | The OSPF Interface States are: down, loopback, waiting, point-to-point, designated router, and backup designated router. |
| Designated Router | The router ID representing the designated router. |
| Backup Designated Router | The router ID representing the backup designated router. |
| Number of Link Events | The number of link events. |
| Local Link LSAs | The number of Link Local Opaque LSAs in the link-state database. |
| Local Link LSA Checksum | The sum of LS Checksums of Link Local Opaque LSAs in the link-state database. |
| Prefix-suppression | Displays whether prefix-suppression is enabled, disabled, or unconfigured on the given interface. |
Example: The following shows example CLI display output for the command when the OSPF Admin Mode is disabled.
(Routing) >show ip ospf interface 1/0/1 IP Address..................................... 0.0.0.0 Subnet Mask.................................... 0.0.0.0 Secondary IP Address(es)....................... OSPF Admin Mode................................ Disable OSPF Area ID................................... 0.0.0.0 OSPF Network Type.............................. Broadcast Router Priority................................ 1 Retransmit Interval............................ 5 Hello Interval................................. 10 Dead Interval.................................. 40 LSA Ack Interval............................... 1 Transmit Delay................................. 1 Authentication Type............................ None Metric Cost.................................... 1 (computed) Passive Status................................. Non-passive interface OSPF Mtu-ignore................................ Disable Flood Blocking................................. Disable OSPF is not enabled on this interface. (Routing) #
