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Cisco IOS Software Cisco IOS Software Release 15.3(3)M EOL Dates

Cisco IOS Software Release 15.3(3)M EOL & EOSL Dates

Software
Part Number: Cisco IOS Software Release 15.3(3)M Model Number: Cisco IOS Software Release 15.3(3)M Release: 2013-05-17
In EOSL Phase

EOSL Date: 2020-10-31

Cisco IOS Software Release 15.3(3)M Lifecycle Timeline

  • Release Date
    2013-05-17


  • End-of-Life Announcement (EOL)
    2015-04-07


  • End of Sale (EOS)
    2015-10-06


  • End of Service Life (EOSL)
    2020-10-31

Cisco IOS Software Release 15.4(3)M
NEW

Cisco IOS Software Release 15.3(3)M has reached EOL / EOS. Suggested replacement: Cisco IOS Software Release 15.4(3)M for continued Cisco support.

Official Cisco EOL notice

You can view the official Cisco EOL / EOSL bulletin for this product at the link below.

View Official EOL Documentation

Cisco IOS Software Release 15.3(3)M EOL Data – Full Overview

Release Date
2013-05-17
End-of-Life Announcement (EOL)
2015-04-07
End of Sale (EOS)
2015-10-06
End of Service Life (EOSL)
2020-10-31

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Lifecycle summary · Cisco Cisco IOS Software Release 15.3(3)M

Cisco Cisco IOS Software Release 15.3(3)M End-of-Life (EOL) & End-of-Sale (EOS) Overview

This page provides the official End-of-Sale (EOS), End-of-Life (EOL) and End of Service Life (EOSL) milestones for Cisco Cisco IOS Software Release 15.3(3)M. Use these lifecycle dates to plan hardware replacement, upgrade projects, and migration to newer Cisco platforms before the product is fully discontinued.

By understanding the Cisco Cisco IOS Software Release 15.3(3)M EOL / EOSL timeline and support policy, IT managers, resellers and network integrators can renew maintenance contracts on time, reduce unplanned downtime, and choose compatible replacement models that fit their long-term network roadmap.

  • Plan EOS / EOL hardware refresh
  • Align support contracts with EOSL dates
  • Evaluate Cisco replacement & upgrade options