Lifecycle record
N3KUK9-503A1-2B EOL & EOSL Dates
Cisco NX-OS Release 5.0(3)A1(2b)
Lifecycle status
In EOSL Phase
N3KUK9-503A1-2B reached its last date of support on 2021-10-31. Cisco support services are no longer available for this model. Recommended replacement: N3KUK9-602A4-6.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2015-10-31 |
|---|---|
| End of Sale (EOS) | 2016-10-30 |
| End of Service Life (EOSL) | 2021-10-31 |
| Manufacturer | Cisco |
| Category | Switches |
| Product Series | Cisco Nexus 3500 |
| Part Number | N3KUK9-503A1-2B |
| Model Number | N3KUK9-503A1.2B |
| Release Date | - |
| Replacement Part Number | N3KUK9-602A4-6 |
| Replacement Product Name | Cisco NX-OS Release 6.0(2)A4(6) |
Lifecycle Timeline
Recorded lifecycle milestones in date order.
Additional Information
Support milestones and the official source recorded for this model.
| Last Ship Date: HW, License | 2017-01-29 |
|---|---|
| End Of New Service Attachment Date: HW | 2017-10-30 |
| End Of SW Maintenance Releases Date: HW | 2017-10-30 |
| End Of Service Contract Renewal Date: HW | 2021-01-28 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco Nexus 3500 EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| C1-N3K-C3548P | Cisco ONE Nexus 3548, 48 SFP+ ports | 2016-04-08 | 2016-10-07 |
| N3K-C3524P-10G | Cisco Nexus 3548 Chassis, 24 Ports Licensed Spare | 2016-04-08 | 2016-10-07 |
| N3K-C3524P-L3 | Cisco Nexus 3548+L3, 24 Ports Licensed Spare | 2016-04-08 | 2016-10-07 |
| N3K-C3524P-SBUN | Cisco Nexus 3548+SBUN, 24 Ports Licensed | 2016-04-08 | 2016-10-07 |
| N3K-C3548P-10G | Cisco Nexus 3548, 48 SFP+ ports | 2016-04-08 | 2016-10-07 |
| N3K-C3548P-BA-L3A | Cisco Nexus 3548+L3+Algo, Rev Airflow (port side intake), AC | 2016-04-08 | 2016-10-07 |
| N3K-C3548P-BD-L3A | Cisco Nexus 3548+L3+Algo, Rev Airflow (port side intake), DC | 2016-04-08 | 2016-10-07 |
| N3K-C3548P-FA-L3A | Cisco Nexus 3548+L3+Algo, Fwd Airflow (port side exhaust), AC | 2016-04-08 | 2016-10-07 |