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Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-8241-02
Chapter 3 Configuring Open Shortest Path First
Showing OSPF Information
Prio The router priority of the neighboring router. Contained in the
neighbor’s hello packets, this value is used by OSPF to select the
designated router for the attached network.
State/Dr The state of a conversation being held with a neighboring router.
The following states are listed in order of their progression.
• Down - The initial state of a neighbor conversation. The
Down state indicates that the CSS has received no recent
information from the neighbor.
• Init - In this state, the CSS has seen a hello packet from the
neighbor. However, the CSS has not established bidirectional
communication with the neighbor (the router itself did not
appear in the neighbor’s hello packet). All neighbors in this
state (or higher) are listed in the hello packets sent from the
associated interface.
• 2-Way - In this state, communication between the two routers
is bidirectional. The designated router is selected from the set
of neighbors in state 2-Way (or greater).
• ExStart - This is the first step to create an adjacency between
the two neighboring routers. The goal is to decide which
router is the master, and to determine the initial Database
Description (DD) sequence number. Neighbor conversations
in this state (or greater) are called adjacencies.
Table 3-11 Field Descriptions for show ospf neighbors Command (continued)
Field Description