Cisco Catalyst 6500 IOS Software Release 15.1(1)SY EOL Dates
Cisco Catalyst 6500 IOS Software Release 15.1(1)SY EOL & EOSL Dates
Networking AccessoriesCategory: Networking Accessories
Series: Cisco Catalyst 6500
EOSL Date: 2019-10-31
IOS Software Release 15.1(1)SY Lifecycle Timeline
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Release Date2012-03-20
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End-of-Life Announcement (EOL)2014-04-30
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End of Sale (EOS)2014-10-29
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End of Service Life (EOSL)2019-10-31
IOS Software Release 15.1(2)SY
NEW
IOS Software Release 15.1(1)SY has reached EOL / EOS. Suggested replacement: Cisco IOS Software Release 15.1(2)SY for Cisco Catalyst 6500 Series Switches 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 DocumentationIOS Software Release 15.1(1)SY EOL Data – Full Overview
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Release Date
- 2012-03-20
-
End-of-Life Announcement (EOL)
- 2014-04-30
-
End of Sale (EOS)
- 2014-10-29
-
End of Service Life (EOSL)
- 2019-10-31
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Cisco IOS Software Release 15.1(1)SY 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 IOS Software Release 15.1(1)SY. 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 IOS Software Release 15.1(1)SY 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