Cisco Bug: CSCvv25052 - Cat9600 does not pass traffic after ISSU upgrade
Aug 20, 2020
- Cisco Catalyst 9600 Series Switches
Known Affected Releases
Symptom: The issue observed was there was no arp resolved or cdp traffic seen on the box. No traffic could pass through the device. Conditions: The issue occurred after the ISSU upgrade of CAT9600 from 16.12.3 to 16.12.3a iOS version.
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Bug Details Include
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