Dell PowerConnect B-RX BigIron RX Series Configuration Guide v02.8.00 - Page 801

Displaying OSPF information 25 TABLE 114 CLI display of OSPF neighbor information (Continued) Field Description State Neigh Address Neigh ID Ev Opt Cnt The state of the conversation between the device and the neighbor. This field can have one of the following values: • Down - The initial state of a neighbor conversation. This value indicates that there has been no recent information received from the neighbor. • Attempt - This state is only valid for neighbors attached to non-broadcast networks. It indicates that no recent information has been received from the neighbor. • Init - A Hello packet has recently been seen from the neighbor. However, bidirectional communication has not yet been established 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 - Communication between the two routers is bidirectional. This is the most advanced state before beginning adjacency establishment. The Designated Router and Backup Designated Router are selected from the set of neighbors in the 2-Way state or greater. • ExStart - The first step in creating an adjacency between the two neighboring routers. The goal of this step is to decide which router is the master, and to decide upon the initial Database Description (DD) sequence number. Neighbor conversations in this state or greater are called adjacencies. • Exchange - The router is describing its entire link state database by sending Database Description packets to the neighbor. Each Database Description packet has a DD sequence number, and is explicitly acknowledged. Only one Database Description packet can be outstanding at any time. In this state, Link State Request packets can also be sent asking for the neighbor's more recent advertisements. All adjacencies in Exchange state or greater are used by the flooding procedure. In fact, these adjacencies are fully capable of transmitting and receiving all types of OSPF routing protocol packets. • Loading - Link State Request packets are sent to the neighbor asking for the more recent advertisements that have been discovered (but not yet received) in the Exchange state. • Full - The neighboring routers are fully adjacent. These adjacencies will now appear in router links and network link advertisements. The IP address of the neighbor. For point-to-point links, the value is as follows: • If the Pri field is "1", this value is the IP address of the neighbor router's interface. • If the Pri field is "3", this is the subnet IP address of the neighbor router's interface. The neighbor router's ID. The number of times the neighbor's state changed. The sum of the option bits in the Options field of the Hello packet. This information is used by Brocade technical support. See Section A.2 in RFC 2178 for information about the Options field in Hello packets. The number of LSAs that were retransmitted. Displaying OSPF interface information To display OSPF interface information, enter the following command at any CLI level. BigIron RX Series Configuration Guide 725 53-1002253-01