L2 Managed Switch

AAAAAAAAAAAATroubleshooting

QQQQWhat could I do if I forgot the username and password of the Switch?

111 Connect the console port of the PC to the console port of the Switch and open hyper terminal.

222Power off and restart the Switch. When you are prompted that “Press CTRL-B to enter the bootUtil” in the hyper terminal, please press CTRL-B key to enter into bootUtil menu shown as the following figure.

333 Enter the reset command to reset the system. The system will be reset to the factory default settings, and the default login user name and password are both admin.

QQQQWhy does the Power LED work abnormally?

The Power LED should be lit up when the power system works normally. If the Power LED worked abnormally, please take the following steps:

111Make sure that the power cable is connected properly, and the power contact is normal.

222Make sure the voltage of the power supply meets the requirement of the input voltage of the Switch.

QQQQWhat could I do if I could not access the web-based configuration page?

You are recommended to check the following items:

111Check every port LED on the Switch and make sure the cable is installed properly.

222Try another port on the Switch and make sure the cable meets the requirement and works normally.

333Turn off the power. After a while, turn on the power again.

444Make sure the IP address of your PC is set within the subnet of the Switch.

555If you still cannot access the configuration page, please restore the Switch to its factory defaults. Then the IP address should be set as 192.168.0.x ("x" is any number from 2 to

254)and Subnet Mask as 255.255.255.0.

QQQQWhy does the hyper terminal display abnormally?

Please check as follows:

111Make sure the power supply is normal and the console cable is properly connected.

222Check if the console cable is the right type.

333Ensure the parameters of the hyper terminal are correct: configure Bits per second as

38400, Data bits as 8, Parity as None, Stop bits as 1, and Flow control as None.

Troubleshooting 22

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TP-Link TL-SL3428, TL-SL3452 manual AAAAAAAAAAAATroubleshooting, Qqqq Why does the Power LED work abnormally?
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TL-SL3428, TL-SL3452 specifications

The TP-Link TL-SL3428 is a feature-rich Ethernet switch designed for small to medium-sized business environments. It is part of TP-Link’s JetStream series, which emphasizes reliability, performance, and robust management capabilities. Built with 28 10/100/1000 Mbps ports, the TL-SL3428 provides sufficient bandwidth to support a wide range of network applications.

One of the standout features of the TL-SL3428 is its support for Layer 2 management protocols. This allows for more granular control and optimized performance across network segments. The switch supports VLAN (Virtual Local Area Network) segmentation, which enhances network security and efficiency by isolating various types of traffic. This feature is particularly useful in larger organizations where different departments or teams may require separate network environments.

The TL-SL3428 also includes advanced QoS (Quality of Service) capabilities. This functionality prioritizes traffic based on predefined rules, which ensures that critical applications receive the necessary bandwidth to function optimally. With QoS implementation, users can experience minimized latency, leading to better performance in VoIP and video conferencing applications.

In terms of redundancy and reliability, the switch also supports Link Aggregation Control Protocol (LACP), enabling multiple connections to be combined for increased bandwidth and failover support. This feature significantly enhances network resilience, ensuring minimal downtime during failures.

Power over Ethernet (PoE) support is another important characteristic of the TL-SL3428. With PoE capabilities, this switch can deliver electrical power along with data over the same Ethernet cable, simplifying installation and reducing the need for additional wiring. This is especially advantageous for IP devices like cameras, access points, and VoIP phones.

Security features are abundant in the TL-SL3428 as well. It implements port security, storm control, and DHCP snooping, all of which contribute to a secure network infrastructure. The switch’s management capabilities can be accessed through a user-friendly web interface, making it easier for IT administrators to configure and monitor network activities.

Overall, the TP-Link TL-SL3428 is an exemplary choice for businesses looking to enhance their network performance with advanced management features, security protocols, and reliability. Its combination of speed, flexibility, and manageability make it a valuable tool for any growing organization.
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