H Commands
This chapter describes the Cisco NX-OS Open Shortest Path First (OSPF) commands that begin with H.
hello-interval (OSPF virtual link)
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
Syntax Description
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. |
Command Default
10 seconds
Command Modes
Virtual link configuration mode
Command History
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5.0(3)N1(1) |
This command was introduced. |
Usage Guidelines
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.
Examples
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)#
Related Commands