polling interface-status down-threshold

Sets the number of consecutive times an interface can be reported down by the CNA link monitor process before the link is considered down by the decision maker process.

polling interface-status down-threshold <number>
 
no polling interface-status down-threshold
 

• number--threshold value (range: 1 through 100)

You must be in link configuration mode (config-engine-link), which requires privileged-level access.

3

The CNA software will evaluate the status of the ISP-facing interface on the edge router to determine if the link is up or down if either of the following are true:

• polling bgp-status on command is enabled and the CNA link monitor has reported the BGP peering to be down
• BGP status is reported as unknown and the require-bgp-snmp-poll command is not enabled

The number set by the polling interface-status down-threshold command determines the number of consecutive times the interface must be reported down before the link is considered to be down.

This provides a buffer against prematurely declaring the link to be down as a result of transient, non-fatal SNMP errors.

See Link Outage Control in Chapter 3: Adaptive Path Control of the CNA Adaptive Path Controller Guide for more information.

Use the no form of the command to restore number to its default.