The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This chapter describes the Cisco NX-OS Open Shortest Path First (OSPF) commands that begin with H.
To specify the interval between hello packets that Cisco NX-OS sends on an Open Shortest Path First (OSPF) virtual link, use the hello-interval command. To return to the default setting, use the no form of this command.
hello-interval seconds
no hello-interval
seconds |
Hello interval (in seconds). The value must be the same for all nodes on a specific virtual link. The range is from 1 to 65535. |
10 seconds
Virtual link configuration mode
|
|
---|---|
5.0(3)N1(1) |
This command was introduced. |
Use the hello-interval command in virtual link configuration mode to set the hello interval for OSPF across a virtual link. A shorter hello interval detects topological changes faster but causes more routing traffic. The hello interval must be the same for all devices on a virtual link.
This command requires the LAN Base Services license.
This example shows how to configure the hello interval to 15 seconds:
switch(config)# router ospf 202
switch(config-router)# area 99 virtual-link 192.0.2.4
switch(config-router-vlink)# hello-interval 15
switch(config-router-vlink)#