Router OSPF Protocol configuration command (2) (1)

11 ipospfhello-interval

Specifies the time interval for sending the Hello Message on the interface. The noipospfhello-interval is restored to the default value.

Ipospfhello-intervaltime noipospfhello-interval

Parameter description: The interval between seconds for sending HELLO messages. The value ranges from 1 to 1 ~ 255.

Default: The interval between sending HELLO messages on the API is 10 seconds by default.

Command mode: Interface Configuration Mode

User Guide: the value of hello-interval is written into the HELLO message and transmitted along with the HELLO message. The smaller the value of hello-interval, the faster the change in the network topology will be discovered, but more routing overhead will be consumed. The hello-interval parameter must be consistent with that of the router adjacent to this interface.

For example, set the interval between sending HELLO messages through Serial0 to 20 seconds.

Quidway (config-if-Serial0) # ipospfhello-interval20

Related commands: ipospfdead-interval

12. ipospfnetwork-type

Set the network type of the interface. Noipospfnetwork-type to cancel the settings.

[No] ipospfnetwork-type {nonbroadcast | point_to_multipoint}

Parameter description: The network type of the nonbroadcast interface is non-broadcast NBMA.

Point_to_multipoint sets the network type of the interface to point to multiple points.

Command mode: Interface Configuration Mode

User Guide: Set the interface to NBMA on a broadcast network without multi-access capability. In an NBMA network, if any two routers cannot be directly accessible, you should set the network to point to multiple points.

Example: configure the interface Serial0 as a non-broadcast NBMA type.

Quidway (config-if-Serial0) # ipospfnetwork-typenonbroadcast

13. ipospfneighbor

Ipospfpollinterval

Configure the interval for sending the round-robin HELLO Message on the NBMA and point-to-point interfaces. The noipospfpollinterval command is restored to the default value.

Ipospfpollintervaltime

Noipospfpollinterval

Parameter description: time refers to the time interval between sending and polling HELLO messages. The valid range is 0 ~ 65535.

Default: the API sends a round-robin HELLO message at an interval of 120 seconds by default.

Command mode: Interface Configuration Mode

User Guide: In NBMA and point-to-multi-point networks, it is still necessary to continue sending HELLO packets when the neighbor of a router does not respond (the time interval exceeds dead-interval, however, the sending frequency should be reduced to the pollinterval frequency. So pollinterval is much larger than the value of hello-interval, at least two minutes and 120 seconds ).

Configure the polling interval to specify the time period for this interface to send the round-robin HELLO message before the interface is adjacent to the router.

For example, configure the interval of sending the round-robin HELLO message to 130 seconds on the Interface Serial0.

Quidway (config-if-Serial0) # ipospfpollinterval130

14. ipospfpriority

Configure the priority of the interface when selecting "select vrouters". The noipospfpriority is restored to the default value.

Ipospfprioritypriority

Noipospfpriority

Parameter description: priority is the priority, valid range: 0 ~ 255.

Default: the default priority of the interface is 1 when the router is selected.

Command mode: Interface Configuration Mode

User Guide: When two vrouters connected to the same network segment want to be "elected vrouters", select a high priority. If the priority is equal, select a vroidwith a large ID. When the priority of a vro is 0, the vro will not be elected as an "election vro" or "backup election vro ". Priority takes effect only when it is configured on a non-point-to-point network.

For example, set the priority of interface Serial0 to 8 when selecting a vro.

Quidway (config-if-Serial0) # ipospfpriority8

Related commands: ipospfneighbor

15. ipospfretransmit

Specify the retransmission interval between the interface and the neighboring router when broadcasting the transport link status. The noipospfretransmit command restores the default value.

Ipospfretransmittime

Noipospfretransmit

Parameter description: The retransmission interval between the time and the neighboring router when the transmission link status is broadcast. The unit is seconds and the range is 1 ~ 65535.

Default: The retransmission interval between the broadcast and the neighboring routers is 5 seconds by default.

Command mode: Interface Configuration Mode

User Guide: When a router broadcasts the link status to its neighbor, it maintains the link status until it receives confirmation from the other party. If no confirmation is received within the time, the request is retransmitted. The time value must be greater than the time when two routers send packets back and forth.

Example: Set the retransmission interval between the Serial0 interface and the adjacent router to 8 seconds when transmitting the link status broadcast.

Quidway (config-if-Serial0) # ipospfretransmit8