Juniper Networks J-Series Monitoring Ospf Routing Information, Ospf Neighbors, Ospf Interfaces

Chapter 7: Monitoring the Router and Routing Operations

Table 53: Summary of Key BGP Routing Output Fields (continued)

Field	Values	Additional Information
Export	Names of any export policies configured on the peer.
Import	Names of any import policies configured on the peer.
Number of	Number of times the BGP sessions has changed state	A high number of flaps might indicate a problem with
flaps	from Down to Up.	the interface on which the session is established.

Monitoring OSPF Routing Information

To view OSPF routing information, select Monitor>Routing>OSPF Information, or enter the following CLI commands:

■show ospf neighbors

■show ospf interfaces

■show ospf statistics

Table 54 on page 119 summarizes key output fields in the OSPF routing display.

Table 54: Summary of Key OSPF Routing Output Fields

Field	Values	Additional Information
OSPF Neighbors
Address	Address of the neighbor.
Interface	Interface through which the neighbor is reachable.
State	State of the neighbor: Attempt, Down, Exchange, ExStart,	Generally, only the Down state, indicating a failed OSPF
	Full, Init, Loading, or 2way.	adjacency, and the Full state, indicating a functional
		adjacency, are maintained for more than a few
		seconds. The other states are transitional states that a
		neighbor is in only briefly while an OSPF adjacency is
		being established.
ID	Router ID of the neighbor.
Priority	Priority of the neighbor to become the designated
	router.
Dead	Number of seconds until the neighbor becomes
	unreachable.
OSPF Interfaces
Interface	Name of the interface running OSPF.

State	State of the interface: BDR, Down, DR, DRother, Loop,
	PtToPt, or Waiting.

The Down state, indicating that the interface is not functioning, and PtToPt state, indicating that a point-to-point connection has been established, are the most common states.

Using the Monitoring Tools ■ 119