Lifecycle record
C1101-4P EOL & EOSL Dates
Cisco ISR 1101 4 Ports GE Ethernet WAN Router
Lifecycle status
EoS - Sales Ended
C1101-4P is no longer sold by Cisco; end of sale was 2026-07-28. Support continues until 2031-07-31. Recommended replacement: C1121-4P.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2025-07-28 |
|---|---|
| End of Sale (EOS) | 2026-07-28 |
| End of Service Life (EOSL) | 2031-07-31 |
| Manufacturer | Cisco |
| Category | Routers |
| Product Series | Cisco ISR 1101 |
| Part Number | C1101-4P |
| Release Date | - |
| Replacement Part Number | C1121-4P |
| Replacement Product Name | Cisco ISR 1100 4P Dual GE SFP Router |
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 | 2026-10-27 |
|---|---|
| End Of New Service Attachment Date: HW | 2027-07-28 |
| End Of SW Maintenance Releases Date: HW | 2027-07-28 |
| End Of Routine Failure Analysis Date: HW | 2027-07-28 |
| End Of Vulnerability/Security Support: HW | 2029-07-27 |
| End Of Service Contract Renewal Date: HW | 2030-10-26 |
| Last Date Of Support: HW | 2031-07-31 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco ISR 1101 EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| C1101-4PLTEP | Cisco ISR 1101 4P GE Ethernet and LTE Secure Router with Pluggable | 2025-07-28 | 2026-07-28 |