Extreme Networks B5 Series switches Replacement — What Extreme Networks Recommends
Extreme Networks support for the Extreme Networks B5 Series switches ended Jun 2022. 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 (13 replacements listed) — named in the Extreme Networks EOL bulletin ↗ as the migration path.
X450-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 B5 Series switches lifecycle dates
| SKU group | End of sale | EOSL / last support | Source |
|---|---|---|---|
| B5 Series switches | Jun 2017 | Jun 2022 | bulletin ↗ |
Per-part-number replacement mapping (10)
As listed in the Extreme Networks bulletin's migration table for each part number.
| End-of-life part | Description | Bulletin-listed replacement |
|---|---|---|
| B5G124-24 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5G124-24P2 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5G124-48 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5G124-48P2 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5K125-24 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5K125-24P2 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5K125-48 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5K125-48P2 | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5G124-48P2-G | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
| B5K125-24P2-G | B5 Series switches | X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176 |
Migration questions
What is the replacement for the Extreme Networks B5 Series switches?
Extreme Networks's end-of-life bulletin names X450-G2 as the recommended migration path for the Extreme Networks B5 Series switches. The exact wording and any per-part-number mapping are in the linked bulletin.
Is the Extreme Networks B5 Series switches end of life?
Extreme Networks support for the Extreme Networks B5 Series switches ended Jun 2022. Unsupported units need a plan. Full lifecycle dates by part number: https://eosl.ai/system/extreme-b5-series-switches/.
Is there a per-part-number replacement mapping for the B5 Series switches?
Yes — the bulletin maps replacements at the part-number level for 10 SKUs (for example B5G124-24 → X450-G2 / 16172 / 16174 / 16173 / 16175 / 16176). 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 B5 Series switches 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.