Display Ospf Request-Queue - 3Com 7750 Series Command Reference Manual

3com switch command reference guide

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3Com Switch 7750 Series

Command Reference Guide – Routing Protocol

3.1.21 display ospf request-queue

display ospf [ process-id ] request-queue

process-id: OSPF Process ID, in the range of 1 to 65,535. If you do not specify a

process ID, this command applies to all current OSPF processes.

Use the display ospf request-queue command to display the information about the

OSPF request-queue.

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.

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.

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).

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

It indicates that OSPF router sends DD packet to its neighbor

routers to exchange link state information

In this state, OSPF router requests neighbor routers based on

the updated link state information from neighbor routers and its

expired information, and waits for response from neighbor

It indicates that database synchronization between the routers

that have established neighbor relation has been completed,

and their link state databases have been consistent

Chapter 3 OSPF Configuration Commands

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