Extreme Networks K-Series Modular Switch Family Replacement — What Extreme Networks Recommends
Extreme Networks support for the Extreme Networks K-Series Modular Switch Family 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 Family lifecycle dates
| SKU group | End of sale | EOSL / last support | Source |
|---|---|---|---|
| K-Series Modular Switch Family | Apr 2019 | Apr 2024 | bulletin ↗ |
Per-part-number replacement mapping (12)
As listed in the Extreme Networks bulletin's migration table for each part number.
| End-of-life part | Description | Bulletin-listed replacement |
|---|---|---|
| KG2001-0224 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KG2001-0224-G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204-G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KT2006-0224 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KT2006-0224-G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KT2010-0224 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KT2010-0224-G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204-F1 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204-F1G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204-F2 | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
| KK2008-0204-F2G | K-Series Modular Switch Family | X4xx-G2 / V400 / ERS |
Migration questions
What is the replacement for the Extreme Networks K-Series Modular Switch Family?
Extreme Networks's end-of-life bulletin names X4xx-G2 as the recommended migration path for the Extreme Networks K-Series Modular Switch Family. The exact wording and any per-part-number mapping are in the linked bulletin.
Is the Extreme Networks K-Series Modular Switch Family end of life?
Extreme Networks support for the Extreme Networks K-Series Modular Switch Family ended Apr 2024. Unsupported units need a plan. Full lifecycle dates by part number: https://eosl.ai/system/extreme-k-series-modular-switch-family/.
Is there a per-part-number replacement mapping for the K-Series Modular Switch Family?
Yes — the bulletin maps replacements at the part-number level for 12 SKUs (for example KG2001-0224 → 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 Family 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.