show ip ospf interface

show ip ospf interface

Displays information about one or more interfaces.

Syntax: show ip ospf interface [pos bay/slot/port] [gbe bay/slot/port] [composite-link name]

pos bay/slot/port

Display OSPF information about the specified POS interface.

gbe bay/slot/port

Display OSPF information about the specified Gigabit Ethernet interface.

composite-link name

Display OSPF information about the specified composite link.

Description: Use the show ip ospf interface command with no arguments to display summarized OSPF information about all interfaces and composite links.

Use the show ip ospf interface pos bay/slot/port command to display OSPF information about the specified POS interface.

Use the show ip ospf interface gbe bay/slot/port command to display OSPF information about the specified Gigabit Ethernet interface.

Use the show ip ospf interface composite-link name command to display OSPF information about the specified composite link interface.

Factory Default: None.

Command Mode: Executive and privileged.

Example 1: The following is sample output of the show ip ospf interface command:

router#show ip ospf interface

Area 0.0.0.0

name address state pri cost Designated Rtr Backup DR

Loopback 0 10.10.10.10 Loopback 1 1 0.0.0.0 0.0.0.0

POS 1/1/1 201.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0

CL CL-A 202.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0

POS 1/1/3 208.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0

The following table describes the fields in the display:

Table 2-5. Fields Displayed by show ip ospf interface
Field Description

Name

The name of the interface.

Address

The IP address assigned to this interface.

State

The state of the network interface.

Priority

Priority of this interface.

Cost

The cost associated with this interface.

Designated Rtr

ID of the designated router.

Backup DR

ID of the backup designated router.

Example 1: The following is sample output of the show ip ospf interface composite-link name command:

router#show ip ospf interface composite-link CL-A

Name: composite-link CL-A

Address: 202.1.1.10

Net type: PointToPoint

State: P To P

Area: 0.0.0.0

DR: 0.0.0.0

BDR: 0.0.0.0

Priority: 1

Cost: 10

Hello int: 10

Dead int: 40

Retrans int: 5

Transmit delay: 1

The following table describes the fields in the display:

Table 2-6. Fields Displayed by show ip ospf interface composite-link
Field Description

Name

The name of the interface.

Address

The IP address assigned to this interface.

Net type

The type of network interface.

Loopback - This interface must have the address of 127.0.0.1. Packets sent to this interface are sent back to the originator.

broadcast - his is a multi-access interface capable of a physical level broadcast, such as Ethernet.

point-to-point - This is a tunnel to another host, usually on some sort of serial link. This interface has a local address, and a remote address.

non-broadcast multi-access (nbma) - This type of interface is multi-access, but not capable of broadcast. An example would be frame relay and X.25. This type of interface has a local address and a subnet mask.

State

The state of the network interface.

Area

The area number for the interface as set with the network area command.

DR

ID of the designated router.

BDR

ID of the backup designated router

Priority

Priority of this interface.

Cost

The cost associated with this interface.

Hello int

The amount of time to wait before sending out another hello packet. This value is set with the ip ospf hello-interval command.

Dead int

The amount of time to wait before declaring an adjacency as down. This value is set with the ip ospf dead-interval command.

Retrans int

The amount of time to wait before resending an advertisement. This value is set with the ip ospf retransmit-interval command.

transmit delay

The amount of time to wait before sending a new advertisement on this interface. This value is set with the ip ospf transmit-delay command.

Related Commands: ip ospf dead-interval
ip ospf hello-interval
ip ospf priority
ip ospf retransmit-interval
ip ospf transmit-delay
network area
interface
show interfaces pos
show ip ospf
show ip ospf border-routers
show ip ospf database
show ip ospf neighbor
show ip ospf request-list
show ip ospf retransmission-list
show ospf virtual-links

pos bay/slot/port	Display OSPF information about the specified POS interface.
gbe bay/slot/port	Display OSPF information about the specified Gigabit Ethernet interface.
composite-link name	Display OSPF information about the specified composite link.

router#show ip ospf interface Area 0.0.0.0 name address state pri cost Designated Rtr Backup DR Loopback 0 10.10.10.10 Loopback 1 1 0.0.0.0 0.0.0.0 POS 1/1/1 201.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0 CL CL-A 202.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0 POS 1/1/3 208.1.1.10 P To P 1 10 0.0.0.0 0.0.0.0

**Table 2-5.** Fields Displayed by show ip ospf interface
Field	Description
Name	The name of the interface.
Address	The IP address assigned to this interface.
State	The state of the network interface.
Priority	Priority of this interface.
Cost	The cost associated with this interface.
Designated Rtr	ID of the designated router.
Backup DR	ID of the backup designated router.

router#show ip ospf interface composite-link CL-A Name: composite-link CL-A Address: 202.1.1.10 Net type: PointToPoint State: P To P Area: 0.0.0.0 DR: 0.0.0.0 BDR: 0.0.0.0 Priority: 1 Cost: 10 Hello int: 10 Dead int: 40 Retrans int: 5 Transmit delay: 1

**Table 2-6.** Fields Displayed by show ip ospf interface composite-link
Field	Description
Name	The name of the interface.
Address	The IP address assigned to this interface.
Net type	The type of network interface. Loopback - This interface must have the address of 127.0.0.1. Packets sent to this interface are sent back to the originator. broadcast - his is a multi-access interface capable of a physical level broadcast, such as Ethernet. point-to-point - This is a tunnel to another host, usually on some sort of serial link. This interface has a local address, and a remote address. non-broadcast multi-access (nbma) - This type of interface is multi-access, but not capable of broadcast. An example would be frame relay and X.25. This type of interface has a local address and a subnet mask.
State	The state of the network interface.
Area	The area number for the interface as set with the network area command.
DR	ID of the designated router.
BDR	ID of the backup designated router
Priority	Priority of this interface.
Cost	The cost associated with this interface.
Hello int	The amount of time to wait before sending out another hello packet. This value is set with the ip ospf hello-interval command.
Dead int	The amount of time to wait before declaring an adjacency as down. This value is set with the ip ospf dead-interval command.
Retrans int	The amount of time to wait before resending an advertisement. This value is set with the ip ospf retransmit-interval command.
transmit delay	The amount of time to wait before sending a new advertisement on this interface. This value is set with the ip ospf transmit-delay command.

   Source File Name: ospf.fm
    HTML File Name: ospf26.html
    Last Updated: 05/10/04 at 16:34:58

show ip ospf interface

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