Cisco Bug: CSCvt63566 - set "cpp system-default" before upgrading to 16.9.5
Sep 02, 2020
- Cisco Catalyst 9400 Series Switches
Known Affected Releases
Symptom: Control Plane Policing [CPP] is enabled by default on Cat9k switches. Class-maps as well as policing rates are included in the running config. These values could have been different in different IOS-XE releases. As a result of multiple IOS upgrade from older release to newer release class-map names and policing rates will be merged into CPP policy overwriting the default values included in a particular IOS-XE release. This will result in a stale configuration that can impact IOS-XE upgrade on Highly Available [HA] setups. Conditions: Non-default / stale CPP leftover configuration present as a result of previous IOS-XE upgrades.
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