Why is the Link/ACT LED flashing continuously on all connected ports on my NETGEAR Switch, and the network is disabled?
If the Link/ACT LED is flashing continuously on all connected ports and the network is disabled, it indicates a network loop has been created. To resolve this, ensure there is only one path from any networked device to any other networked device, breaking the redundant path.
What to do if Link/ACT LED is off on NETGEAR Switch?
If the Link/ACT LED is off on your NETGEAR Switch, the port connection may not be working. Check the crimp on the connectors, ensure the plug is properly inserted and locked into the port at both the switch and the connecting device. Also, make sure all cables used are correct and comply with Ethernet specifications. If problems persist, test for a defective adapter card, cable, or port in an alternate environment where all products are functioning.
General| Model Number | GS748T |
|---|---|
| Product Type | Switch |
| Ports | 48 |
| SFP Ports | 4 |
| Form Factor | Rack-mountable |
| Layer | Layer 2 |
| Switching Capacity | 96 Gbps |
| Forwarding Rate | 71.4 Mpps |
| MAC Address Table Size | 16K |
| Jumbo Frame Support | Yes |
| VLAN Support | Yes |
| Number of VLANs | 256 |
| Quality of Service (QoS) | Yes |
| PoE | No |
| Stackable | No |
| Port Type | Gigabit Ethernet |
| Management | Yes |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Storage Temperature | -4°F to 158°F (-20°C to 70°C) |
| Humidity | 90% maximum relative humidity, noncondensing |
Describes typographical conventions and special message formats used in the manual.
Defines the manual's scope, product version, and where to find updates.
Explains how to navigate the HTML version of the manual using buttons and links.
Provides instructions on how to print the manual from HTML or PDF versions.
Provides a detailed overview of the GS748T Gigabit Smart Switch features and capabilities.
Lists the key hardware and software features of the GS748T Gigabit Smart Switch.
Details the items included in the GS748T Gigabit Smart Switch package.
Identifies key components on the front and back panels of the GS748T Gigabit Smart Switch.
Describes the 48 auto-sensing RJ-45 ports and their Auto Uplink technology.
Explains the function of the four SFP GBIC module bays for fiber connectivity.
Summarizes the function of the LEDs on the front panel for port status monitoring.
Details the function and operation of the hardware reset button on the front panel.
Explains how to use the button to clear settings and return the switch to factory defaults.
Illustrates using the GS748T as a desktop switch in a small network for high-speed access.
Shows how to use the GS748T as a backbone switch for high-speed access to servers.
Outlines environmental and site requirements for installing the switch.
Provides methods for installing the switch on a flat surface or in a rack.
Details the inspection steps required after installation before applying power.
Guides on how to connect devices to the switch's RJ-45 ports.
Explains the procedure for installing an optional SFP GBIC module into the switch.
Describes how to connect and apply AC power to the switch.
Details the initial configuration process using a web browser or utility program.
Lists common symptoms, their causes, and solutions for troubleshooting the switch.
Provides further suggestions for resolving problems not covered in the chart.
Offers advice on ensuring network adapter cards are functioning correctly for troubleshooting.
Suggests steps for troubleshooting configuration-related issues by restoring connections.
Explains how to verify switch integrity by resetting or reapplying power.
Lists the network protocols and IEEE standards supported by the switch.
Details the management features including VLAN, QoS, and Port Trunking.
Describes the switch's RJ-45 and SFP GBIC module interface specifications.
Specifies the type and function of LEDs on the switch.
Provides performance metrics like bandwidth, latency, buffer memory, and MTBF.
Details the power consumption and input voltage specifications.
Lists the physical dimensions and weight of the switch.
Outlines the operating and storage temperature, humidity, and altitude limits.
Lists the electromagnetic emission certifications the device complies with.
Lists the electromagnetic immunity standards the device complies with.
Mentions safety certifications and directives applicable to the device.
Lists compatible SFP GBIC modules for fiber connectivity.
Defines technical terms from 10BASE-T through Endstation.
Defines technical terms from Ethernet through LAN.
Defines technical terms from Loop through VLAN.
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