Nexus 2000 Series —
Covered past the OEM cutoff by an independent maintainer.
Modules and units still circulate on the secondary market.
Carrying production traffic? Set the replacement window now, not mid-outage.
Low-criticality role — document the risk, harden backups, retire on your terms.
No. Cisco's last date of support for N6KUK9-721N1 was Apr 2022, per the Cisco end-of-life bulletin — it is past end of service life.
N6KUK9-721N1 reached end of sale May 2017, per the Cisco end-of-life bulletin.
Apr 2022, according to the Cisco end-of-life bulletin.
After the last date of support, N6KUK9-721N1 units can often be kept in production through third-party maintenance providers. Cisco no longer issues software fixes, TAC support, or hardware replacement for it.