Technical Documentation

show (ospf | ospf3) overview

Syntax

Syntax (EX Series Switch)

show (ospf | ospf3) overview <brief | extensive> <instance instance-name>

Release Information

Command introduced in Junos OS Release 7.4.

Command introduced in Junos OS Release 9.0 for EX Series switches.

realm option introduced in Junos OS Release 9.2.

Database protection introduced in Junos 10.2.

Description

Display Open Shortest Path First (OSPF) overview information.

Options

none: Display standard information about all OSPF neighbors for all routing instances.
brief | extensive: (Optional) Display the specified level of output.
instance instance-name: (Optional) Display all OSPF interfaces under the named routing instance.
logical-system (all | logical-system-name): (Optional) Perform this operation on all logical systems or on a particular logical system.
realm (ipv4-multicast | ipv4-unicast | ipv6-multicast): (Optional) (OSPFv3 only) Display information about the specified OSPFv3 realm, or address family. Use the realm option to specify an address family for OSPFv3 other than IPv6 unicast, which is the default.

Required Privilege Level

view

List of Sample Output

show ospf overview
show ospf overview (with Database Protection)
show ospf3 overview (with database protection)
show ospf overview extensive

Output Fields

Table 1 lists the output fields for the show ospf overview command. Output fields are listed in the approximate order in which they appear.

Table 1: show ospf overview Output Fields

Field name	Field Description	Level of Output
Instance	OSPF routing instance.	All levels
Router ID	Router ID of the routing device.	All levels
Route table index	Route table index.	All levels
Configured overload	Overload capability is enabled. If the overload timer is also configured, display the time that remains before it is set to expire. This field is not displayed after the timer expires.	All levels
Full SPF runs	Number of complete Shortest Path First calculations.	All levels
SPF delay	Delay before performing consecutive Shortest Path First calculations.	All levels
SPF holddown	Delay before performing additional Shortest Path First (SPF) calculations after the maximum number of consecutive SPF calculations is reached.	All levels
SPF rapid runs	Maximum number of Shortest Path First calculations that can be performed in succession before the holddown timer begins.	All levels
LSA refresh time	Refresh period for link-state advertisement (in minutes).	All levels
Database protection state	Current state of database protection.	All levels
Warning threshold	Threshold at which a warning message is logged (percentage of maximum LSA count).	All levels
Non self-generated LSAs	Number of LSAs whose router ID is not equal to the local router ID: Current, Warning (threshold), and Allowed.	All levels
Ignore time	How long the database has been in the ignore state.	All levels
Reset time	How long the database must stay out of the ignore or isolated state before it returns to normal operations.	All levels
Ignore count	Number of times the database has been in the ignore state: Current and Allowed.	All levels
Restart	Graceful restart capability: enabled or disabled.	All levels
Restart duration	Time period for complete reacquisition of OSPF neighbors.	All levels
Restart grace period	Time period for which the neighbors should consider the restarting routing device as part of the topology.	All levels
Helper mode	Graceful restart helper capability: enabled or disabled.	All levels
Trace options	OSPF-specific trace options.	extensive
Trace file	Name of the file to receive the output of the tracing operation.	extensive
Area	Area number. Area 0.0.0.0 is the backbone area.	All levels
Stub type	Stub type of area: Normal Stub, Not Stub, or Not so Stubby Stub.	All levels
Authentication Type	Type of authentication: None, Password, or MD5.	All levels
Area border routers	Number of area border routers.	All levels
Neighbors	Number of autonomous system boundary routers.	All levels

Sample Output

show ospf overview

user@host> show ospf overview

Instance: master
    Router ID: 10.255.245.6
    Route table index: 0
 	 Configured overload, expires in 118 seconds
    LSA refresh time: 50 minutes
	 Restart: Enabled
    	Restart duration: 20 sec
    	Restart grace period: 40 sec
    	Helper mode: enabled
	 Area: 0.0.0.0
      Stub type: Not Stub
      Authentication Type: None
      Area border routers: 0, AS boundary routers: 0
      Neighbors
        Up (in full state): 0
    Topology: default (ID 0)
      Prefix export count: 0
      Full SPF runs: 1
      SPF delay: 0.200000 sec, SPF holddown: 5 sec, SPF rapid runs: 3

show ospf overview (with Database Protection)