H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 3 OSPF Configuration Commands
3-25
Field Description
DR IP address of the interface of the elected DR
BDR IP address of the interface of the elected BDR
Dead timer expires in 31s
If no hello packet is received from the peer
within this interval, the peer will be considered
invalid.
Neighbor has been up for 01:14:14 Time of neighbor connection
# Display OSPF peer statistics.
<H3C> display ospf peer statistics
OSPF Process 1 with Router ID 1.1.1.1
Neighbor Statistics
Area ID Down Attempt Init 2-Way ExStart Exchange Loading Full Total
0.0.0.0 0 0 0 0 0 0 0 1 1
0.0.0.1 0 0 0 0 0 0 0 1 1
Total 0 0 0 0 0 0 0 2 2
Table 3-11 Description on the fields of the display ospf peer statistics command
Field Description
Area ID Area ID
Down
Initial state for OSPF to establish neighbor relation, which indicates
that OSPF router does not receive the message from a certain
neighbor router within a period of time
Attempt
This state is enabled in an NBMA environment, such as Frame Relay,
X.25 or ATM. The state indicates that OSPF router does not receive
the message from a certain neighbor router within a period of time, but
still attempts to send Hello packets to the adjacent routers for
communications in a lower frequency.
Init
Indicates that OSPF router has received Hello packet from a neighbor
router, but its IP address is not contained in the Hello packet.
Therefore, a two-way communication between them has not been
established.
2-Way
Indicates that a two-way communication between OSPF router and
neighbor router has been established. DR and BDR can be selected
in this state (or higher state).
ExStart
In this state, the router determines the sequence number of initial
database description (DD) packet used for data exchange, so that it
can obtain the latest link state information
Exchange
Indicates that OSPF router sends DD packet to its neighbor routers to
exchange link state information