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Cisco Bug: CSCvs08460 - Pushed from Cisco DNA Center IP SLAs cause VN DNS/DHCP reachability alarms in Assurance

Last Modified

Apr 22, 2020

Products (1)

  • Cisco DNA Center

Known Affected Releases

DNAC1.2.10 DNAC1.3.1.4 DNAC1.3.3.1

Description (partial)

Symptom:
Cisco DNA Center's Assurance app may show DNS/DHCP reachability alarms in a particular VN.  Configurations sent by Cisco DNA Center may include IP SLAs for checking DHCP/DNS reachability on the fabric borders.  This can cause Assurance alarms due to using an L3-handoff IP addresses as a probe's source.  Users may not advertise L3-handoff subnets into the routing domain outside the fabric (there is no explicit recommendation to do this). That causes the IP SLAs to fail.

Conditions:
This happened in an SDA fabric where IP SLAs pushed by Csco DNA Center are using L3-handoff IP addresses as probe sources.
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