Cisco Bug: CSCvt18739 - Cat9K - incorrect source mac address used for L3 packets after L3 link flap
Oct 27, 2020
- Cisco Catalyst 9300 Series Switches
Known Affected Releases
Symptom: After a L3 link flap, a cat9K device starts using an incorrect source mac address for L3 packets. The device has a combination of static macs (for anycast gateway functionality) and system mac. This causes issues with end hosts that implement a fast path like behavior (they simply swap source/destination macs). Conditions: Combination of static mac and system mac in use.
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Bug Details Include
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