Milestone dates
The dates Cisco published, with Cisco's own wording under each milestone.
| Milestone | Date |
|---|---|
| End of saleCisco: End-of-Sale Date: HW | |
| Last ship dateCisco: Last Ship Date: HW | |
| End of software maintenanceCisco: End of SW Maintenance Releases Date: HW | |
| End of hardware repairCisco: End of Routine Failure Analysis Date: HW | |
| End of new service contractsCisco: End of New Service Attachment Date: HW | |
| End of security fixesCisco: End of Vulnerability/Security Support: HW | |
| End of service contract renewalCisco: End of Service Contract Renewal Date: HW | |
| Last date of supportCisco: Last Date of Support: HW |
Affected part numbers
4 part numbers are covered.
| Part number | Description | Replacement named by Cisco |
|---|---|---|
| IR1821-K9 | Cisco Catalyst IR1821 Rugged Series Router | IR1833-K9 |
| IR1821-K9++ | Cisco Catalyst IR1821 Rugged Series Router- TAA | IR1833-K9 |
| IR1831-K9 | Cisco Catalyst IR1831 Rugged Series Router | IR1833-K9 |
| IR1831-K9++ | Cisco Catalyst IR1831 Rugged Series Router- TAA | IR1833-K9 |
Upgrade path
Cisco names 1 replacement part number. None of them is in our catalogue yet; send the part numbers with a quote request and we will source them new.
Source
Cisco: End-of-Sale and End-of-Life Announcement for Cisco Catalyst IR1821 and Cisco Catalyst IR1831. Retrieved 25 October 2026. Manufacturers sometimes revise these dates; check the source for the exact part number you run.