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Table 1 shows standard maintenance release goals and dates for the Cisco Catalyst 6500 Series.
Table 1. Standard Maintenance Release Goals and Dates for the Cisco Catalyst 6500 Series
Goal Definition Date
Posting to Software Download
Center
The date the software release is first available at http://www.cisco.com/kobayashi/sw-
center/sw-ios.shtml.
Day 0
End of standard maintenance The last date on which regular bug-fix maintenance rebuilds will be made available for this
software release. After this date, a software upgrade to the next available release for
supported products might be required for continued bug-fix maintenance.
+12 months
End of critical maintenance The last date on which a critical fix rebuild (limited to network-affecting issues such as
PSIRT advisories; see
http://www.cisco.com/en/US/products/products_security_advisories_listing.html) will be
made available for this software release. After this date, a software upgrade to the next
available release for supported products might be required for continued bug-fix
maintenance or critical fixes. Standard Cisco PSIRT policy will take precedence; see
http://www.cisco.com/go/psirt.
+6 months from end
of standard
maintenance date
Extended Maintenance Release
●
Ideal for long-term maintenance support and also incorporating all the features and hardware support of
previous standard maintenance and extended maintenance releases
●
24 months of regular maintenance rebuilds (approximately one every 3 months) with fixes for critical
severity 1, 2, and 3 bugs
●
6 additional months of critical fixes support for network-affecting bugs such as PSIRT issues (standard
Cisco PSIRT policy will take precedence; see
http://www.cisco.com/go/psirt)
●
Release will be safe harbor tested and certified
●
12 months of overlap with next extended maintenance release to allow for smooth transitions
●
Release 12.2(18)SXF is the first extended maintenance release, with the 2-year clock starting on
March 1, 2006
Table 2 lists extended maintenance release goals and dates for the Cisco Catalyst 6500 Series.
Table 2. Extended Maintenance Release Goals and Dates for the Cisco Catalyst 6500 Series
Goal Definition Date
Posting to Software Download
Center
The date the software release is first available at http://www.cisco.com/kobayashi/sw-
center/sw-ios.shtml.
Day 0
End of extended maintenance The last date on which regular bug-fix maintenance rebuilds will be made available for this
software release. After this date, a software upgrade to the next available release for
supported products might be required for continued bug-fix maintenance.
+24 months
End of critical maintenance The last date on which a critical fix rebuild (limited to network-affecting issues such as
PSIRT advisories; see
http://www.cisco.com/en/US/products/products_security_advisories_listing.html) will be
made available for this software release. After this date, a software upgrade to the next
available release for supported products might be required for continued bug-fix
maintenance or critical fixes. Standard Cisco PSIRT policy will take precedence; see
http://www.cisco.com/go/psirt.
+6 months from end
of extended
maintenance date
12.2(50)SY Software Release
Cisco IOS Software Release 12.2(50)SY for the Cisco Catalyst 6500 Series is a standard maintenance release
available to Cisco
®
Catalyst
®
6500 Series Supervisor Engine 2T only. Table 3 provides the goals and dates for the
Maintenance Release 12.2(50)SY. This release is a Supervisor 2T only release. There is no support for Supervisor
720 or Supervisor 32 in 12.2(50)SY.