Ospf configuration example, Network requirements – H3C Technologies H3C SecPath F1000-E User Manual
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Item Description
IP Address
IP address of the neighbor router
DR Priority
DR priority of the neighbor router
State
Current state of the neighbor, which can be:
•
Down, indicating the initial state of the neighboring relationship.
•
Init, indicating a Hello packet is received from the neighbor before the neighbor
is down, but it does not contain the router ID. In such cases, bidirectional
communication is not available.
•
Attempt, which is available the neighbor of an NBMA network only. It indicates
the router receives no information from the neighbor, but it still attempts to contact
the neighbor.
•
2-way, indicating the bidirectional communication is available, and the router ID
can be obtained from the Hello packet sent by the neighbor router.
•
Exstart, indicating the master and slave between the router and the neighbor and
the initial DD packet sequence number are determined for exchanging DD
packets.
•
Exchange, indicating the router sends DD packets to its neighbor to describe its
LSDB.
•
Loading, indicating the router sends an LSR packet to its neighbor, requesting the
newest LSA.
•
Full, indicating adjacency has been established between the router and its
neighbor.
OSPF Configuration Example
Network requirements
•
All the devices run OSPF, and the AS is divided into three areas.
•
Device A and Device B act as ABRs to forward routes between areas.
•
Configure Area 1 as an NSSA area, and configure Device C as an ASBR to redistribute static routes
into the AS.