Extreme Networks K-Series modular switch chassis Replacement — What Extreme Networks Recommends
Extreme Networks support for the Extreme Networks K-Series modular switch chassis ended Apr 2024. Unsupported units need a plan. Extreme Networks's own end-of-life bulletin names the successor below — quoted from the source, with the successor's live support status where EOSL.ai tracks it.
The Extreme Networks-named replacement
per-part mapping in the bulletin (3 replacements listed) — named in the Extreme Networks EOL bulletin ↗ as the migration path.
X4xx-G2 is not yet tracked on EOSL.ai — no vendor end-of-life notice has been captured for it, which is typical of current products.
Extreme Networks K-Series modular switch chassis lifecycle dates
| SKU group | End of sale | EOSL / last support | Source |
|---|---|---|---|
| K-Series modular switch chassis | Jul 2019 | Apr 2024 | bulletin ↗ |
Per-part-number replacement mapping (4)
As listed in the Extreme Networks bulletin's migration table for each part number.
| End-of-life part | Description | Bulletin-listed replacement |
|---|---|---|
| K10-CHASSIS | K-Series modular switch chassis | X4xx-G2 / V400 / ERS |
| K6-CHASSIS | K-Series modular switch chassis | X4xx-G2 / V400 / ERS |
| K10-192TRPL-BUN | K-Series modular switch chassis | X4xx-G2 / V400 / ERS |
| K6-120SFP-BUN | K-Series modular switch chassis | X4xx-G2 / V400 / ERS |
Migration questions
What is the replacement for the Extreme Networks K-Series modular switch chassis?
Extreme Networks's end-of-life bulletin names X4xx-G2 as the recommended migration path for the Extreme Networks K-Series modular switch chassis. The exact wording and any per-part-number mapping are in the linked bulletin.
Is the Extreme Networks K-Series modular switch chassis end of life?
Extreme Networks support for the Extreme Networks K-Series modular switch chassis ended Apr 2024. Unsupported units need a plan. Full lifecycle dates by part number: https://eosl.ai/system/extreme-k-series-modular-switch-chassis/.
Is there a per-part-number replacement mapping for the K-Series modular switch chassis?
Yes — the bulletin maps replacements at the part-number level for 4 SKUs (for example K10-CHASSIS → X4xx-G2 / V400 / ERS). The full table is on this page.
Do I have to buy the Extreme Networks-recommended replacement?
No. The bulletin's named successor is Extreme Networks's suggested path, not an obligation. Teams also keep K-Series modular switch chassis units running under third-party maintenance after the support cutoff, migrate to a different vendor, or run low-criticality units to failure with the risk documented. See the support-options guide for the trade-offs.