Cisco ISR4000 – EOL / EOSL
Series Overview
- Brand
- Cisco
- Category
- Software
- Series
- Cisco ISR4000
- Total Models
- 6
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 1–6
of 6 items
| Part Number | Product Name | EOL Announcement | EOS | EOSL |
|---|---|---|---|---|
| ISR4221-B/K9 | Cisco ISR4000 ISR4221-B/K9 | 2019-04-30 | 2019-10-29 | 2024-10-31 |
| ISR4321-B/K9 | Cisco ISR4000 ISR4321-B/K9 | 2019-04-30 | 2019-10-29 | 2024-10-31 |
| ISR4331-B/K9 | Cisco ISR4000 ISR4331-B/K9 | 2019-04-30 | 2019-10-29 | 2024-10-31 |
| SISR4451XNPEK9-38S | Cisco ISR4000 SISR4451XNPEK9-38S | 2020-04-30 | 2020-10-29 | 2025-10-31 |
| SISR4451XUK9-38S | Cisco ISR4000 SISR4451XUK9-38S | 2020-04-30 | 2020-10-29 | 2025-10-31 |
| SISR4451XUK9-39S | Cisco ISR4000 SISR4451XUK9-39S | 2020-04-30 | 2020-10-29 | 2025-10-31 |