Extreme Networks Summit X770 Replacement — What Extreme Networks Recommends
Extreme Networks support for the Extreme Networks Summit X770 ends Nov 2026 — the migration window is now. 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
listed in the replacement column of the Extreme end-of-sale bulletin — named in the Extreme Networks EOL bulletin ↗ as the migration path.
X870 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 Summit X770 lifecycle dates
| SKU group | End of sale | EOSL / last support | Source |
|---|---|---|---|
| Summit X770 — 8 parts | Nov 2021 | Nov 2026 | bulletin ↗ |
Per-part-number replacement mapping (8)
As listed in the Extreme Networks bulletin's migration table for each part number.
| End-of-life part | Description | Bulletin-listed replacement |
|---|---|---|
| 17700 | Summit X770-32q-Base Unit | X870 |
| 17701 | Summit X770-32q-FB-AC | X870 |
| 17702 | Summit X770-32q-BF-AC | X870 |
| 17703 | Summit X770-32q-FB-DC | X870 |
| 17704 | Summit X770-32q-BF-DC | X870 |
| 17705 | Summit X770-32q-FB-MIX | X870 |
| 17706 | Summit X770-32q-BF-MIX | X870 |
| 23305 | E//BDL-X770-32Q-BF-AC/Core | X870 |
Migration questions
What is the replacement for the Extreme Networks Summit X770?
Extreme Networks's end-of-life bulletin names X870 as the recommended migration path for the Extreme Networks Summit X770. The exact wording and any per-part-number mapping are in the linked bulletin.
Is the Extreme Networks Summit X770 end of life?
Extreme Networks support for the Extreme Networks Summit X770 ends Nov 2026 — the migration window is now. Full lifecycle dates by part number: https://eosl.ai/system/extreme-summit-x770/.
Is there a per-part-number replacement mapping for the Summit X770?
Yes — the bulletin maps replacements at the part-number level for 8 SKUs (for example 17700 → X870). 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 Summit X770 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.