OEM supported
The Cisco Catalyst IR1821 and Cisco Catalyst IR1831 reaches End of Service Life (EOSL) on 28 Feb 2031.
End of sale
27 Feb 2026EOSL
28 Feb 2031
27 Feb 2026EOSL
28 Feb 2031
- Manufacturer
- Cisco
- Product family
- Catalyst Ir1800 Rugged Series Routers
- Models / part numbers
- IR1821-K9, IR1831-K9
- Category
- Router
- End of sale / EOL
- 27 Feb 2026
- End of Service Life
- 28 Feb 2031
- Source
- OEM end-of-life notice · view source
- Notes
- Cisco end-of-life bulletin (announced 2025-08-29). Covers 8 part numbers, e.g. IR1821-K9, IR1831-K9.
- Last checked
- 14 Nov 2026
Frequently asked questions
When is the Cisco Catalyst IR1821 and Cisco Catalyst IR1831 End of Service Life?
Cisco Catalyst IR1821 and Cisco Catalyst IR1831 reaches End of Service Life on 28 Feb 2031, after End of Sale on 27 Feb 2026.
What happens after the Catalyst IR1821 and Cisco Catalyst IR1831 reaches EOSL?
Cisco stops selling support contracts, spare parts and firmware updates. The hardware keeps working, but break/fix, parts and engineering help must come from a third-party maintenance provider.
Can SLA Expert support the Catalyst IR1821 and Cisco Catalyst IR1831 after EOSL?
Yes — SLA Expert provides multi-vendor third-party maintenance, spares and field engineering for post-EOSL Cisco equipment across the Middle East and Africa. Request a quote to confirm coverage for your units.
Related Cisco EOSL dates
| Model | Category | End of sale | EOSL date | Status | |
|---|---|---|---|---|---|
| 12000 Series 1-port OC-48c/POS Line Cards, FC CONNECTOR OC48E/POS-LR-FC-B, OC48E/POS-SR-FC-B | Network Module | 27 Dec 2001 | 27 Dec 2006 | Past EOSL | |
| SOHO 71, 76, 77, 77H, 806, 826, 827, and 827H Routers CISCOSOHO71, CISCOSOHO76, CISCOSOHO77-50, CISCOSOHO77H, CISCO806, CISCO826, CISCO827, CISCO827H | Router | 30 Apr 2004 | 30 Apr 2009 | Past EOSL | |
| Catalyst 6509-NEB Chassis and Cisco Catalyst 6500 1300W AC Power Supply WS-C6509-NEB, WS-C6509-NEB-FAN, WS-C6509NEB-1300A, WS-C6509NEB-1300D, WS-C6509NEB-2500A, WS-C6509NEB-2500D | Network Switch | 05 Nov 2004 | 30 Nov 2009 | Past EOSL | |
| EOS & EOL: Select Cisco Catalyst 6500 Series Components-Updated WS-C6509-NEB, WS-CAC-1300W | Network Switch | 31 Dec 2004 | 31 Dec 2009 | Past EOSL | |
| 16OC3/POS-SM,16OC3/POS-MM ,8OC3/POS-SM & 8OC3/POS-MM 16OC3/POS-MM, 16OC3/POS-SM, 8OC3/POS-MM, 8OC3/POS-SM | Network Module | 31 Jan 2005 | 31 Jan 2010 | Past EOSL | |
| Catalyst 6500 Series OC-12 ATM Module | Network Switch | 25 Apr 2005 | 25 Apr 2010 | Past EOSL |