Cisco NCS 4000 – EOL / EOSL
Series Overview
- Brand
- Cisco
- Category
- Software
- Series
- Cisco NCS 4000
- Total Models
- 36
Lifecycle Notes
We summarize official Cisco EOL bulletins for quick planning. Use the milestones below to align maintenance windows and budget.
-
1
EOL — Announcement — plan upgrade in advance.
-
2
EOS — End of sale — confirm last order and stock.
-
3
EOSL — End of support — schedule replacement.
Always verify dates with official Cisco notices; minor revisions may occur.
Models in this Series
Showing 21–36
of 36 items
| Part Number | Product Name | EOL Announcement | EOS | EOSL |
|---|---|---|---|---|
| NCS4K-SSD-200G= | Cisco NCS 4000 NCS4K-SSD-200G= | 2023-11-30 | 2024-11-29 | 2029-11-30 |
| XR-NCS4K-521K9 | Cisco NCS 4000 XR-NCS4K-521K9 | 2019-01-15 | 2019-04-16 | 2020-04-30 |
| XR-NCS4K-523K9 | Cisco NCS 4000 XR-NCS4K-523K9 | 2019-01-15 | 2019-04-16 | 2020-04-30 |
| XR-NCS4K-601K9 | Cisco NCS 4000 XR-NCS4K-601K9 | 2018-01-15 | 2018-07-16 | 2023-07-31 |
| XR-NCS4K-601K9= | Cisco NCS 4000 XR-NCS4K-601K9= | 2018-01-15 | 2018-07-16 | 2023-07-31 |
| XR-NCS4K-612K9 | Cisco NCS 4000 XR-NCS4K-612K9 | 2018-01-15 | 2018-07-16 | 2023-07-31 |
| XR-NCS4K-612K9= | Cisco NCS 4000 XR-NCS4K-612K9= | 2018-01-15 | 2018-07-16 | 2023-07-31 |
| XR-NCS4K-6142K9 | Cisco NCS 4000 XR-NCS4K-6142K9 | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-6142K9= | Cisco NCS 4000 XR-NCS4K-6142K9= | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-651K9 | Cisco NCS 4000 XR-NCS4K-651K9 | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-6525K9 | Cisco NCS 4000 XR-NCS4K-6525K9 | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-6525K9= | Cisco NCS 4000 XR-NCS4K-6525K9= | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-6526K9 | Cisco NCS 4000 XR-NCS4K-6526K9 | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-6526K9= | Cisco NCS 4000 XR-NCS4K-6526K9= | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-652K9 | Cisco NCS 4000 XR-NCS4K-652K9 | 2025-06-13 | 2026-06-13 | 2029-06-30 |
| XR-NCS4K-652K9= | Cisco NCS 4000 XR-NCS4K-652K9= | 2025-06-13 | 2026-06-13 | 2029-06-30 |