- License and feature set
- With no license it's a Layer 2 switch. Juniper's legacy table puts OSPF, VRRP, IGMP and PIM on the EX2300 behind the Enhanced Feature License (EFL), and IS-IS and MPLS aren't supported on it at all. Under Flex licensing, OSPF, RIP and VRRP come with Advanced and BGP is a Premium feature, though Juniper notes a licensed feature isn't always supported on every model. License keys are tied to the serial number, so ask for show system license before you count on any routing.
- Software and support
- It runs Junos OS from 15.1X53-D50 on. Juniper announced end of life on April 30, 2026 and took last orders on September 30, 2026. It names 25.4 as the last software release, and support ends on September 30, 2031.
- Fans and power
- Two fans along the rear move air front to back and run at moderate speed until a fan fails or it runs hot. Juniper gives no acoustic figure for it. The switch draws up to 80 W before PoE, and the AC input is rated 7 A at 100 V for the PoE load on top.
- PoE
- All 24 copper ports do 802.3af and 802.3at (PoE+), with up to 370 W across the switch from the single built-in supply. The uplinks don't carry PoE, and Juniper says class 4 devices need Cat 5 or better cable.
- Ports and optics
- The four front uplinks take 10G SFP+ or 1G SFP optics. They double as Virtual Chassis ports for stacking up to four EX2300s, but only with SFP+ modules. Juniper's current license page says Virtual Chassis needs no license, though the hardware guide still lists -VC models that shipped with a paper VC license. Optics aren't in the box, so count modules in the photos.
- Reset and console
- Hold the Factory Reset/Mode button on the front for 10 seconds to load the factory default, or run request system zeroize. A lost root password is reset from the console in single-user mode with boot -s, then recovery. There's an RJ-45 console on the back and a mini-USB console on the front.
Check the listing photos against this list, and ask the seller about anything you can’t see. A missing piece should come off the price.