Vendor EOL guides
Find any product's end-of-life date
Every vendor announces end-of-life differently — different terms, different timelines, different lookup tools. These guides explain each vendor's lifecycle policy in plain English and point you to the official source for exact dates.
Cisco
EoS, EoNSA, LDoS — Cisco's five milestones explained, the 5-year hardware support rule, and where to look up any product or serial number.
Read the Cisco guide →Fortinet
EOO, LSED, EOS — how FortiGate hardware and FortiOS firmware lifecycles work, and where Fortinet publishes the official dates.
Read the Fortinet guide →Dell · HPE · Juniper · Synology…
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New to the terminology?
EOL, EOS, EOSL and friends — what each “end of” date actually means.
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