Cisco hardware with a vendor end-of-service-life date in the next 18 months. Plan migrations and renewals before Cisco support ends — each date links to the Cisco end-of-life bulletin.
Hardware here has a vendor-published end-of-service-life date within the next 18 months. After that date the vendor stops issuing software fixes, security patches and hardware replacement.
Procurement, migration and budget cycles often run 6–18 months. Tracking support-end dates ahead of time avoids running unsupported gear in production.
Each date links to the vendor’s official end-of-life bulletin, or, where a vendor publishes none, is computed from their published support-life policy and labelled "computed".