Extreme Networks B5 Series switches — End-of-Life & EOSL Dates
B5 Series switches. Extreme Networks end-of-life bulletin "B5 Switches Bulletin", read in full; each date below is shown with the bulletin's own wording.
Every tracked Extreme Networks B5 Series switches SKU group is past Extreme Networks end of service life (last group Jun 2022). 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: X450-G2.
EOL announced
Dec 2016
End of sale
Jun 2017
Last date of support
Jun 2022
Part numbers
10
52
months past last support
Why this score
- Past end of service life — 52 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 10 share the dates above. Find your exact part to confirm.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| B5G124-24 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5G124-24P2 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5G124-48 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5G124-48P2 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5K125-24 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5K125-24P2 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5K125-48 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5K125-48P2 | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5G124-48P2-G | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
| B5K125-24P2-G | B5 Series switches | Jun 2017 | Jun 2022 | Past support |
Options from here
The Extreme Networks B5 Series switches 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 B5 Series switches — questions
Is the Extreme Networks B5 Series switches end of life?
Yes. Every tracked B5 Series switches SKU group is past its last date of support.
What is the last date of support for the B5 Series switches?
Jun 2022, per the Extreme Networks end-of-sale bulletin.
Where do these B5 Series switches 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 B5 Series switches?
Extreme Networks's end-of-life bulletin lists X450-G2 as the recommended migration path for the B5 Series switches. Exact per-part-number replacements are in the linked bulletin.
On the same timetable
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