Short version: Juniper announced end-of-life for the EX2300 (April 30, 2026), the EX4600 and EX4300-48MP (both June 29, 2026), and the EX4300-32F (March 31, 2026) — all within the last few months. Meanwhile the EX2200, EX3300, EX4200, EX4500 and EX4550 already went fully unsupported on June 30, 2024. If you have not looked at your EX estate since 2024, several platforms have moved underneath you.
Juniper's EOL data is published as a single table of TSB bulletins that is genuinely hard to read: it uses two different column schemas depending on when the product was announced, and it lists SKUs rather than platforms. This is that table, reorganised into something you can actually plan against. All dates are as published in Juniper's EX Series Hardware Dates & Milestones table, last updated 29 June 2026.
The 2026 announcements — this is the news
Four EX platforms were announced EOL in the first half of 2026. If you are specifying EX gear for a project right now, this is the part that matters, because the last-order dates are months away, not years.
| Platform | TSB | EOL announced | Last order | End of engineering | Last Junos | End of Support |
|---|---|---|---|---|---|---|
| EX4300-32F | TSB105633 | Mar 31, 2026 | Mar 31, 2026 | Mar 31, 2027 | 21.4 | Mar 31, 2029 |
| EX2300 (all: 24T/24P/24MP/48T/48P/48MP/C-12T/C-12P) | TSB107683 | Apr 30, 2026 | Sep 30, 2026 | Sep 30, 2029 | 25.4 | Sep 30, 2031 |
| EX4300-48MP | TSB109284 | Jun 29, 2026 | Dec 29, 2026 | Dec 29, 2029 | 25.4 | Dec 29, 2031 |
| EX4600 (40F-AFI/AFO/DC, EX4600-EM-8F) | TSB109286 | Jun 29, 2026 | Dec 29, 2026 | Dec 29, 2029 | 21.4 | Dec 29, 2031 |
Two things stand out.
The EX4300-32F was announced and hit last-order on the same day — March 31, 2026. There was no buying window. If you need 32F fibre access ports, the only supply now is the secondary market.
The EX4600's last Junos release is 21.4, while the EX2300 and EX4300-48MP get 25.4. That is a four-year software gap on a box that stays supported until 2031. You will be running an aging Junos train on the 4600 for the rest of its life, and any feature or hardening that lands after 21.4 will never reach it. Factor that into anything security-sensitive.
Already dead: platforms past End of Support
These are fully obsolete. No JTAC, no RMA, no software. If any of these are still in production, they are unsupported today.
| Platform | EOL announced | Last order | End of Support |
|---|---|---|---|
| EX2200, EX3300, EX4200, EX4500, EX4550 | Feb 1, 2019 | Jun 30, 2019 | Jun 30, 2024 — past |
| EX8200, EX6200 | 2015–2016 | 2016 | Dec 31, 2022 — past |
| EX3200 | Mar 1, 2014 | Aug 31, 2014 | Aug 31, 2019 — past |
| EX2500 | Oct 1, 2012 | Nov 30, 2012 | Nov 30, 2017 — past |
The big one is the EX2200 / EX3300 / EX4200 / EX4500 / EX4550 group, all covered by a single 2019 announcement and all dead as of June 30, 2024. The EX4200 in particular had an enormous install base as a campus access and small-core workhorse, and a lot of it is still racked. It works — but you own it entirely now, and RE/PSU/fan spares come from the secondary market or nowhere.
Still supported, but on the clock
| Platform | EOL announced | Last order | End of Support |
|---|---|---|---|
| EX4300 (24P, 24T, 48P, 48T, 48T-DC, 48T-AFI and TAA variants) | Jun 24, 2022 | Mar 31, 2024 | Mar 31, 2029 |
| EX9200 / EX9251 / EX9253 (line cards, chassis, RE) | Oct 15, 2021 | Mar 31, 2022 | Mar 31, 2027 |
Note that the EX4300 is now fragmented across three separate bulletins: the base copper models (EOS March 31, 2029), the 32F fibre model (EOS March 31, 2029, but last-order already passed), and the 48MP multigigabit model (EOS December 29, 2031). Same product family name, three different lifecycles. "Is the EX4300 EOL?" has no single correct answer — you have to check the exact SKU.
The EX9200 chassis line reaches End of Support on March 31, 2027. That is well under a year away and it is a core/aggregation platform, which means the migration is not a weekend job. If EX9200 is in your core, this should already be a funded project.
How to read Juniper's milestones (they are not Cisco's)
Juniper's terminology trips up people who are used to Cisco EOL bulletins. The rough mapping:
- Last Order ≈ Cisco's End-of-Sale. Last day to buy new from Juniper.
- End of Hardware Failure Analysis — Juniper will no longer do root-cause analysis on failed hardware.
- End of Engineering — no more software development, including fixes. This is the one that matters for security. It typically lands two years before End of Support.
- Last Software Version — the final Junos train the platform will ever run. Check this early; it constrains what features you can deploy for the rest of the box's life.
- End of Support ≈ Cisco's Last Date of Support. Fully obsolete.
The trap is End of Engineering. On the EX2300, that is September 30, 2029 — two full years before End of Support in 2031. From 2029 to 2031 you have a switch that Juniper will still talk to you about but will not patch. For audit purposes, treat End of Engineering as the real expiry date, not End of Support.
Juniper's older bulletins use a different column set again (Last Date to Convert Warranty, Same Day Support Discontinued, Next Day Support Discontinued), which is why the two tables above are not identical in shape. Both come from the same source table.
What replaces what
Juniper's current campus access platforms are the EX4100 and EX4400 lines, with the newer EX4000 line below them. Broadly, EX2300-class deployments move to EX4100 or EX4000, and EX4300/EX4600-class deployments move to EX4400 or EX4650 depending on whether you need 10G/25G uplink density.
We are deliberately not publishing a SKU-for-SKU replacement table here, because Juniper's recommended replacement is specified per-SKU inside each TSB and differs by port count, PoE budget, uplink type and Virtual Chassis requirement. Getting that wrong is worse than not having a table. Pull the TSB for your exact part number — the TSB reference is in the tables above — or send us the list and we will map it.
One planning note that applies across the board: Virtual Chassis does not mix across generations the way people hope. Verify VC compatibility before you plan a phased, switch-by-switch swap into an existing stack — as with Cisco's FlexStack-to-StackWise jump, you will usually find you are migrating a whole VC at a time.
Where to source the parts
Both halves of an EX migration are things we stock: current EX4100/EX4400 hardware for the refresh, and EOL EX2200/EX3300/EX4200/EX4300/EX4600 chassis, power supplies, fan trays, uplink modules and optics for the estate you are keeping alive.
- Juniper Parts — chassis, PSUs (JPSU-350/550/715/1100/1400), fan trays, uplink modules (EX-UM-4X4SFP, EX-UM-2QSFP, EX-UM-4SFPP-MR)
- Network Switches — EX Series and multi-vendor campus switching
- Transceivers & Optics — SFP, SFP+, QSFP and QSFP28 for EX platforms
- Juniper Networking Parts — B2B supply, DDP worldwide
For EOL platforms, the parts that actually strand a switch are rarely the chassis — they are the power supplies, fan trays and uplink modules. Those are the items to secure while supply is deep.
Need a quote?
Send us your EX part number list — EOL spares, EX4100/EX4400 refresh, optics, or all three — and we will price it and flag anything that is past End of Support. We ship worldwide DDP with duties included, accept purchase orders, and return quotes within 24 hours.
Sources: Juniper Networks, "EX Series Hardware Dates & Milestones" (support.juniper.net/support/eol/product/ex_series/), last updated 29 June 2026, and the referenced Technical Support Bulletins TSB105633, TSB107683, TSB109284 and TSB109286. All dates above are transcribed from that table. Juniper revises this table regularly — confirm against the live page and the TSB for your exact SKU before purchasing. Replacement-platform guidance is general; per-SKU replacements are specified inside each TSB.