http://www.cisco.com/c/en/us/products/ios-nx-os-software/eos-eol-listing.html
? IOS 12.2 http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-software-release-12-2/prod_end-of-life_notice0900aecd80330813.html
-> IOS 12.2.33 SXJ http://www.cisco.com/c/en/us/products/collateral/switches/mgx-8800-series-switches/end-of-life-notice-c51-729742.html
? IOS 12.3 http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-software-releases-12-3-mainline/prod_end-of-life_notice0900aecd8052e110.html
? IOS 12.4 http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-software-releases-12-4-mainline/end_of_life_notice_c51-574251.html
? IOS 15.x http://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-15-1m-t/eos-eol-notice-listing.html
and browse here: http://www.cisco.com/cisco/web/psa/default.html?mode=prod&level0=268438303
ex:
- 3548 XL http://www.cisco.com/c/en/us/support/switches/catalyst-3548-xl-switch/model.html IOS 12.0(5)WC17 http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3500-xl-series-switches/prod_end-of-life_notice0900aecd8021a948.html
? PANOS https://www.paloaltonetworks.com/support/end-of-life-announcements/end-of-life-summary.html
? ScreenOS http://www.juniper.net/support/eol/screenos.html
? TMOS F5 / BIGIP https://support.f5.com/kb/en-us/solutions/public/3000/200/sol3225.html
