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.