Extreme Networks ERS 4900 Series Replacement — What Extreme Networks Recommends
Extreme Networks support for the Extreme Networks ERS 4900 Series has ended for some part numbers (last group runs to Jul 2027). 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 (4 replacements listed) — named in the Extreme Networks EOL bulletin ↗ as the migration path.
per-part mapping in the bulletin (2 replacements listed) — named in the Extreme Networks EOL bulletin ↗ as the migration path.
AL4900A01-E6 and 5520 are not yet tracked on EOSL.ai — no vendor end-of-life notice has been captured for them, which is typical of current products.
Extreme Networks ERS 4900 Series lifecycle dates
| SKU group | End of sale | EOSL / last support | Source |
|---|---|---|---|
| ERS 4900 Series (privately branded OEM) | Apr 2018 | Apr 2023 | bulletin ↗ |
| ERS 4900 Series | Jul 2022 | Jul 2027 | 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 |
|---|---|---|
| AL4900A01-CS | ERS 4900 Series | AL4900A01-E6 / AL4900A02-E6 / AL4900A03-E6 / AL4900A04-E6 |
| AL4900A02-CS | ERS 4900 Series | AL4900A01-E6 / AL4900A02-E6 / AL4900A03-E6 / AL4900A04-E6 |
| AL4900A03-CS | ERS 4900 Series | AL4900A01-E6 / AL4900A02-E6 / AL4900A03-E6 / AL4900A04-E6 |
| AL4900A04-CS | ERS 4900 Series | AL4900A01-E6 / AL4900A02-E6 / AL4900A03-E6 / AL4900A04-E6 |
| AL4900A01-E6 | ERS 4900 Series | 5520 / 5420 |
| AL4900A01-E6GS | ERS 4900 Series | 5520 / 5420 |
| AL4900A02-E6 | ERS 4900 Series | 5520 / 5420 |
| AL4900A02-E6GS | ERS 4900 Series | 5520 / 5420 |
| AL4900A03-E6 | ERS 4900 Series | 5520 / 5420 |
| AL4900A03-E6GS | ERS 4900 Series | 5520 / 5420 |
| AL4900A04-E6 | ERS 4900 Series | 5520 / 5420 |
| AL4900A04-E6GS | ERS 4900 Series | 5520 / 5420 |
Migration questions
What is the replacement for the Extreme Networks ERS 4900 Series?
Extreme Networks's end-of-life bulletin names AL4900A01-E6 and 5520 as the recommended migration path for the Extreme Networks ERS 4900 Series. The exact wording and any per-part-number mapping are in the linked bulletin.
Is the Extreme Networks ERS 4900 Series end of life?
Extreme Networks support for the Extreme Networks ERS 4900 Series has ended for some part numbers (last group runs to Jul 2027). Unsupported units need a plan. Full lifecycle dates by part number: https://eosl.ai/system/extreme-ers-4900-series/.
Is there a per-part-number replacement mapping for the ERS 4900 Series?
Yes — the bulletin maps replacements at the part-number level for 12 SKUs (for example AL4900A01-CS → AL4900A01-E6 / AL4900A02-E6 / AL4900A03-E6 / AL4900A04-E6). 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 ERS 4900 Series 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.