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Cisco Bug: CSCvv65738 - N9K IP SLA reaction feature cannot work in 9.3.3 and 9.3.5

Last Modified

Oct 10, 2020

Products (1)

  • Cisco MDS 9000 NX-OS and SAN-OS Software

Known Affected Releases

9.3(3) 9.3(5)

Description (partial)

Symptom:
Configuration:
===================================================
track 2 ip sla 2 reachability

ip route 2.2.2.2/32 12.12.12.2 track 2
ip route 22.22.22.22/32 12.12.12.2

ip sla 1
  icmp-echo 22.22.22.22
    threshold 1000
    timeout 1000
    frequency 2
ip sla schedule 1 life forever start-time now

ip sla 2
  icmp-echo 22.22.22.22
    threshold 1000
    timeout 1000
    frequency 2
ip sla schedule 2 life 5 start-time pending

ip sla reaction-configuration 1 react timeout threshold-type consecutive 3 action-type trapAndTrigger
ip sla reaction-trigger 1 2


SLA status:
=======================================
# show ip sla statistics

IPSLAs Latest Operation Statistics

IPSLA operation id: 1
        Latest RTT: 1 milliseconds
Latest operation start time: 04:25:23 UTC Wed Sep 09 2020
Latest operation return code: OK
Number of successes: 32
Number of failures: 46
Operation time to live: forever

IPSLA operation id: 2
        Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 04:23:01 UTC Wed Sep 09 2020
Latest operation return code: Timeout                                  <<<<<
Number of successes: 0
Number of failures: 5
Operation time to live: 0 sec

# show track
Track 2
  IP SLA 2 Reachability
  Reachability is DOWN
  1 changes, last change 00:02:48
  Latest operation return code: Timeout
  Tracked by:
    IPv4 Static Route 1

Conditions:
IP SLAs Reaction is configured.

For example:

ip sla reaction-configuration 1 react timeout threshold-type consecutive 3 action-type trapAndTrigger
ip sla reaction-trigger 1 2
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