Extreme Networks Enterasys B3 and C3 PoE models — End-of-Life & EOSL Dates
Enterasys B3 and C3 PoE models. Extreme Networks end-of-life bulletin "Enterasys B3 and C3 Stackable Products Bulletin", read in full; each date below is shown with the bulletin's own wording.
Every tracked Extreme Networks Enterasys B3 and C3 PoE models SKU group is past Extreme Networks end of service life (last group Jun 2016). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure. Extreme Networks’s named migration path: B5G124-24P2.
EOL announced
Jan 2011
End of sale
Jun 2011
Last date of support
Jun 2016
Part numbers
5
124
months past last support
Why this score
- Past end of service life — 124 months ago
- Vendor-published date, source-linked
- Vendor-named replacement / migration path available
- Category: ethernet switch
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Part numbers in this family
All 5 share the dates above. Find your exact part to confirm.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| B3G124-24P | Enterasys B3 and C3 PoE models | Jun 2011 | Jun 2016 | Past support |
| B3G124-48P | Enterasys B3 and C3 PoE models | Jun 2011 | Jun 2016 | Past support |
| C3G124-24P | Enterasys B3 and C3 PoE models | Jun 2011 | Jun 2016 | Past support |
| C3G124-48P | Enterasys B3 and C3 PoE models | Jun 2011 | Jun 2016 | Past support |
| C3G124-48P-G | Enterasys B3 and C3 PoE models | Jun 2011 | Jun 2016 | Past support |
Options from here
The Extreme Networks Enterasys B3 and C3 PoE models is past Extreme Networks end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today. Set a migration timeline and budget.
Low-criticality role: document the risk, harden backups, retire on your terms.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Extreme Networks Enterasys B3 and C3 PoE models — questions
Is the Extreme Networks Enterasys B3 and C3 PoE models end of life?
Yes. Every tracked Enterasys B3 and C3 PoE models SKU group is past its last date of support.
What is the last date of support for the Enterasys B3 and C3 PoE models?
Jun 2016, per the Extreme Networks end-of-sale bulletin.
Where do these Enterasys B3 and C3 PoE models dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official Extreme Networks end-of-sale bulletin it was taken from.
What is the replacement for the Enterasys B3 and C3 PoE models?
Extreme Networks's end-of-life bulletin lists B5G124-24P2 as the recommended migration path for the Enterasys B3 and C3 PoE models. Exact per-part-number replacements are in the linked bulletin.
On the same timetable
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