85
Field Description
State
Neighbor state:
•
Down
—Initial state of a neighbor conversation.
•
Init
—The router has seen a Hello packet from the neighbor.
However, the router has not established bidirectional
communication with the neighbor (the router itself did not
appear in the neighbor's hello packet).
•
Attempt
— Available only in an NBMA network, Under this
state, the OSPF router has not received any information from
a neighbor for a period but can send Hello packets at a
longer interval to keep neighbor relationship.
•
2-Way
—Communication between the two routers is
bidirectional. The router itself appears in the neighbor's Hello
packet.
•
Exstart
—The goal of this state is to decide which router is the
master, and to decide upon the initial Database Description
(DD) sequence number.
•
Exchange
—The router is sending DD packets to the neighbor,
describing its entire link-state database.
•
Loading
—The router sends LSRs packets to the neighbor,
requesting more recent LSAs.
•
Full
—The neighboring routers are fully adjacent.
Mode
Neighbor mode for LSDB synchronization.
Priority Neighboring
router
priority.
DR
DR on the interface’s network segment.
BDR
BDR on the interface’s network segment.
MTU Interface
MTU.
Options
LSA options:
•
O
—Opaque LSA advertisement capability.
•
E
—AS External LSA reception capability.
•
EA
—External extended LSA reception capability.
•
DC
—On-demand link support.
•
N
—NSSA external LSA support.
•
P
—Capability of an NSSA ABR to translate Type-7 LSAs into
Type-5 LSAs.
Dead timer due in 33 sec
This dead timer will expire in 33 seconds.
Neighbor is up for 02:03:35
The neighbor has been up for 02:03:35.
Authentication Sequence
Authentication sequence number.
Neighbor state change count
Count of neighbor state changes.
# Display brief OSPF neighbor information.
<Sysname> display ospf peer
OSPF Process 1 with Router ID 1.1.1.1
Neighbor Brief Information
