Lifecycle record

ISR4321-EN-3Y-100M EOL & EOSL Dates

Cisco VIPTELA-ISR4321 3Year 100Mbps Enterprise Bundle

Lifecycle status

End of Support (EOL Completed)

ISR4321-EN-3Y-100M reached its last date of support on 2026-05-31. Cisco support services are no longer available for this model. Recommended replacement: ISR4321-DNA.

Last checked: 2026-06-16

EOL & EOSL Dates and Details

End-of-Life Announcement (EOL) 2020-11-09
End of Sale (EOS) 2021-05-10
End of Service Life (EOSL) 2026-05-31
Manufacturer Cisco
Category Routers
Product Series Cisco 4000
Part Number ISR4321-EN-3Y-100M
Release Date -
Replacement Part Number ISR4321-DNA
Replacement Product Name Cisco ISR 4321 (2GE,2NIM,4G FLASH,4G DRAM,IPB) with DNA sub

Lifecycle Timeline

Recorded lifecycle milestones in date order.

  • End-of-Life Announcement (EOL)
    2020-11-09


  • End of Sale (EOS)
    2021-05-10


  • Last Ship Date
    2021-08-08


  • End of SW Maintenance
    2022-05-10


  • End of Service Contract Renewal
    2025-08-05


  • Last Date of Support
    2026-05-31


  • End of Service Life (EOSL)
    2026-05-31

Additional Information

Support milestones and the official source recorded for this model.

Last Ship Date: HW,License 2021-08-08
End Of New Service Attachment Date: HW 2022-05-10
End Of SW Maintenance Releases Date: HW 2022-05-10
End Of Routine Failure Analysis Date: HW 2022-05-10
End Of Vulnerability/Security Support: HW 2024-05-09
End Of Service Contract Renewal Date: HW 2025-08-05
Last Date Of Support: HW 2026-05-31
Official EOL Notice View Official EOL Documentation

More Cisco 4000 EOL Dates

Part Number Product Name EOL Announcement End of Sale
ISR4321-EN-3Y-20M Cisco VIPTELA-ISR4321 3Year 20Mbps Enterprise Bundle 2020-11-09 2021-05-10
ISR4321-EN-3Y-50M Cisco VIPTELA-ISR4321 3Year 50Mbps Enterprise Bundle 2020-11-09 2021-05-10
ISR4321-PR-3Y-100M Cisco VIPTELA-ISR4321 3Year 100Mbps Enterprise Bundle 2020-11-09 2021-05-10
ISR4321-PR-3Y-20M Cisco VIPTELA-ISR4321 3Year 20Mbps Professional Bundle 2020-11-09 2021-05-10
ISR4321-PR-3Y-50M Cisco VIPTELA-ISR4321 3Year 50Mbps Professional Bundle 2020-11-09 2021-05-10
MEM-4300-2G Cisco 2G DRAM (1 DIMM) for Cisco ISR 4330, 4350, Spare 2020-11-09 2021-05-10
SM-X-NIM-ADPTR SM-X Adapter for one NIM module for Cisco 4000 Series ISR 2024-07-22 2025-01-20