3Com 5500-EI Series, Справочное руководство

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4-24
Field Description
Pri Priority of a neighbor router
DeadTime(s) Dead time, in seconds, of neighbor router
Interface Type and number of the local router interface connected to the neighbor router
State
State of a neighbor router, including
z
Down
z
Init
z
Attempt
z
2-Way
z
Exstart
z
Exchange
z
Loading
z
Full
If the neighbor router is a designated router, DR will be attached to the state. If
the neighbor route is a backup designated router, BDR will be attached. If the
neighbor route is neither a DR, nor a BDR, only the state is displayed.
# Display OSPF neighbor statistics.
<Sysname> 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
0.0.0.1 0 0 0 0 0 0 0 1 1
Total 0 0 0 0 0 0 0 1 1
Table 4-12
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
It is enabled in an NBMA environment, such as Frame Relay, X.25 or
ATM. It 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 packet to the adjacent routers for their communications with a lower
frequency.
Init
It 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
It 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
It indicates that OSPF router sends DD packet to its neighbor routers to
exchange link state information