Lifecycle record
ESC-4-1-A-1YR-K9 EOL & EOSL Dates
Cisco One Active ESC 4.1 Server License for Production for 1 year
Lifecycle status
In EOSL Phase
ESC-4-1-A-1YR-K9 reached its last date of support on 2022-01-31. Cisco support services are no longer available for this model. Recommended replacement: ESC-4-2-A-1YR-K9.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2018-07-31 |
|---|---|
| End of Sale (EOS) | 2019-01-29 |
| End of Service Life (EOSL) | 2022-01-31 |
| Manufacturer | Cisco |
| Category | Software |
| Product Series | Cisco Elastic Services Controller |
| Part Number | ESC-4-1-A-1YR-K9 |
| Release Date | - |
| Replacement Part Number | ESC-4-2-A-1YR-K9 |
| Replacement Product Name | Cisco One Active ESC 4.2 Server License for Production for 1 year |
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 | 2019-04-29 |
|---|---|
| End Of New Service Attachment Date: HW | 2020-01-29 |
| End Of SW Maintenance Releases Date: HW | 2020-01-29 |
| End Of Service Contract Renewal Date: HW | 2021-04-26 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco Elastic Services Controller EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| ESC-3-1-A-1YR-K9 | Cisco One Active ESC 3.1 Server License for Production for 1 year | 2018-05-11 | 2018-11-09 |
| ESC-3-1-A-3YR-K9 | Cisco One Active ESC 3.1 Server License for Production for 3 years | 2018-05-11 | 2018-11-09 |
| ESC-3-1-A-T-K9 | Cisco One Active ESC 3.1 Server License for Prod nw Subscription | 2018-05-11 | 2018-11-09 |
| ESC-3-1-LAB-1YR-K9 | Cisco Five ESC 3.1 Lab Server Licenses for 1 Year | 2018-05-11 | 2018-11-09 |
| ESC-3-1-LAB-T-K9 | Cisco ESC 3.1 Lab Server 5 Subscription Licenses for non Prod nw | 2018-05-11 | 2018-11-09 |
| ESC-4-0-A-1YR-K9 | Cisco One Active ESC 4.0 Server License for Production for 1 year | 2018-05-11 | 2018-11-09 |
| ESC-4-0-A-3YR-K9 | Cisco One Active ESC 4.0 Server License for Production for 3 years | 2018-05-11 | 2018-11-09 |
| ESC-4-0-A-T-K9 | Cisco One Active ESC 4.0 Server License for Prod nw Subscription | 2018-05-11 | 2018-11-09 |