Juniper EX Series EX4300 — End-of-Life & EOSL Dates

UNDER VENDOR SUPPORTJuniper supports this to December 2031, with the earliest group ending March 2029.

Juniper EX Series EX4300 — switch. Published end-of-sale (last order) and end-of-support (EOSL) dates from Juniper JTAC End-of-Life bulletins.

Juniper EX Series EX4300 is still under Juniper support, to Dec 2031 (earliest group Mar 2029). Fold the eventual replacement into your planning cycle.

End of sale

Mar 2024 – Dec 2026

Last date of support

Mar 2029 – Dec 2031

Part numbers

Juniper end-of-sale bulletin ↗EX4300 · verified Aug 2026

Check your part numbers in bulk Add to calendar

months of vendor support left

Support Runway Score78/100 · Watch

Why this score

End of service life within ~3 years
Vendor-published date, source-linked
Category: 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

Figure 1. Support runs to Dec 2031. Budget a refresh or line up cover before that date.

EX4300

2022202520282031

Figure 2. The EX4300 against 7 other models in Juniper EX Series. Each bar runs from the earliest milestone Juniper publishes for that model, which is first availability where it gives one and end of sale otherwise, to its last date of support. The vertical rule is today; bars entirely to its left are past support.

Part numbers in this family

Dates vary across 3 groups in this family, so every row carries its own. Find your exact part before you plan.

Part number	Description	End of sale	Last support	Status
EX4300-32F	EX4300 switch	Mar 2026	Mar 2029	Supported
EX4300-32F-DC	EX4300 switch	Mar 2026	Mar 2029	Supported
EX4300-32F-S	EX4300 switch	Mar 2026	Mar 2029	Supported
EX4300-24P	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-24P-S	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-24T	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-24T-S	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48P	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48P-S	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T-AFI	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T-DC	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T-DC-AFI	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T-DC-TEL	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48T-S	EX4300 switch	Mar 2024	Mar 2029	Supported
EX4300-48MP	EX4300 switch	Dec 2026	Dec 2031	Supported
EX4300-48MP-S	EX4300 switch	Dec 2026	Dec 2031	Supported

Juniper end-of-sale bulletin ↗EX4300 · verified Aug 2026

Options from here

The Juniper EX Series EX4300 is still supported. Options to plan around, in rough priority:

Monitor the timeline

Supported for now. Track the end-of-service date and revisit at refresh planning.

Plan the refresh

Fold the eventual replacement into your multi-year budget.

Keep firmware current

Stay on a supported software train while under OEM support.

Third-party maintenance later

An option to extend life once the OEM cutoff nears.

Check your exact part numbers Weigh your support options

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.

EX Series EX4300 — questions

Is the Juniper EX Series EX4300 end of life?

Not yet. All tracked EX4300 SKU groups are still within Juniper support, though dates vary by SKU. See the breakdown below.

What is the last date of support for the EX4300?

Last dates of support across EX4300 SKU groups range from Mar 2029 to Dec 2031.

Where do these EX4300 dates come from?

Every end-of-sale and end-of-service-life date on this page links to the official Juniper end-of-sale bulletin it was taken from.

More Juniper EX Series · compare all 21 models →

127mo past EX Series EX4500Juniper · Switch · 15 SKUs › 63mo past EX Series EX6200Juniper · Switch · 7 SKUs › 63mo past EX Series EX6210Juniper · Switch · 7 SKUs › 44mo past EX Series EX8200Juniper · Switch · 14 SKUs › 26mo past EX Series EX4550Juniper · Switch · 15 SKUs › 64mo left EX Series EX4600Juniper · Switch · 8 SKUs ›

On the same timetable

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