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TP-Link JetStream TL-SG3428 24-Port Gigabit L2+ Managed Switch: specs and fit
A rackmount 24-port Gigabit L2+ managed switch with four SFP slots, Omada SDN integration, static routing and VLANs. What the specs mean.
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The TP-Link TL-SG3428 is a 24-port Gigabit managed switch from the JetStream line, with four extra SFP slots. It is an L2+ switch, which means it handles the usual layer 2 switching and adds some layer 3 abilities such as static routing. It can work on its own or as part of TP-Link's Omada software-defined networking system.
Ports
The switch has 24 RJ45 ports running at 10/100/1000 Mbps, plus four Gigabit SFP slots. SFP slots take plug-in modules, often fibre, which suit longer runs or links between switches. The listing doesn't mention PoE, so devices that need power over Ethernet will need another source.
Omada SDN
Omada is TP-Link's platform for managing switches, access points and gateways from one interface. TP-Link says you can use an Omada hardware controller or the software controller, and that standalone mode also works. A cloud access option and the Omada app allow centralised management of several sites from one place.
TP-Link adds a compatibility note: an SDN controller works only with SDN access points, switches and gateways, and a non-SDN controller works only with non-SDN access points. Check that your other devices and controllers are on SDN firmware, or can be upgraded to it.
What L2+ and static routing mean
Static routing lets the switch send traffic between separate subnets using routes you set by hand, which can ease the load on a router for internal traffic. TP-Link also lists IPv6, L2/L3/L4 QoS, IGMP and LAG. QoS prioritises sensitive traffic such as voice, IGMP helps with multicast traffic such as video, and LAG combines several ports into one link.
Security features
The security list is long: 802.1Q VLAN, IP-MAC-Port binding, ACL, port security, DoS defence, storm control, DHCP snooping and 802.1X RADIUS authentication. These are typical of business networks, where segmenting traffic and controlling which devices connect matters.
Management options
For standalone use, TP-Link lists web, CLI (console port, Telnet, SSH), SNMP and RMON management, along with dual image firmware. Dual image typically keeps a backup firmware in case an update goes wrong.
Size and warranty
It measures about 17.3 by 7.1 by 1.7 inches (a 19-inch-rack-width case) and weighs 4.3 lb. The listing quotes both a three-year and a five-year warranty with free technical support during set hours, so confirm the term that applies where you buy.
Who it suits
It suits small and mid-sized offices, schools and installers who want a managed switch with routing between segments and the option of central control. It is more than a small home network needs.
What to check before you buy
- Ports and uplinks: confirm 24 copper ports and four SFP slots fit your plan, and which SFP modules you need.
- PoE: confirm none of your devices need power from the switch.
- Omada gear: check your other devices run SDN firmware if you want central control.
- Skill level: a CLI and VLAN setup suit those with some networking experience.
- Rack space: confirm you have a rack or shelf, and ventilation.
- Warranty: check the term and support hours for your region.
The short version
- 24 x Gigabit RJ45 ports and 4 x Gigabit SFP slots.
- L2+ features including static routing and IPv6.
- Omada SDN integration, cloud access, or standalone mode.
- VLAN, ACL, 802.1X and other security features.
- 4.3 lb, rackmount width.
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