EOSL ≤ 12 months
The Cisco AireOS 3504 Wireless Controller reaches End of Service Life (EOSL) on 31 Jan 2027.
End of sale
31 Mar 2021EOSL
31 Jan 2027
31 Mar 2021EOSL
31 Jan 2027
- Manufacturer
- Cisco
- Product family
- 3504 Wireless Controller
- Models / part numbers
- AIR-CT3504-RMNT, AIR-CT3504-CA-K9, AIR-CT3504-K9, EDU-LIC-CT3504-UPG, LIC-CT3504-1AP-INT, LIC-CT3504-INT-1A
- Category
- Wireless
- End of sale / EOL
- 31 Mar 2021
- End of Service Life
- 31 Jan 2027
- Source
- OEM end-of-life notice · view source
- Notes
- Cisco end-of-life bulletin (announced 2021-03-31). Covers 7 part numbers, e.g. AIR-CT3504-RMNT, AIR-CT3504-CA-K9, AIR-CT3504-K9.
- Last checked
- 14 Nov 2026
Frequently asked questions
When is the Cisco AireOS 3504 Wireless Controller End of Service Life?
Cisco AireOS 3504 Wireless Controller reaches End of Service Life on 31 Jan 2027, after End of Sale on 31 Mar 2021.
What happens after the AireOS 3504 Wireless Controller 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 AireOS 3504 Wireless Controller 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 | |
|---|---|---|---|---|---|
| 3504 Wireless controller AIR-CT3504-K9, EDU-CT3504-K9, C1-AIR-CT3504-K9, AIR-CT3504-RMNT, AIR-CT3504-SW-8.5 | Wireless | 31 Jan 2021 | 31 Jan 2027 | EOSL ≤ 12 months | |
| 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 |