Article ID: GV3-14-07-30-n
Released Date: 07/30/2014
Applied to
GV-POE0801 / 1601 / 2401
GV-POE0811 / 1611 / 2411
Issue
When multiple PoE Switches are interconnected, the network connection fails and all of the switches are unable to function due to the multicast of network traffic.
For example, when 3 units of GV-POE2401 is structured as a loop as illustrated below, any of the PoE Switches trying to connect to the network causes failure to the entire system.
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Solution
To ensure the network connection with the loop of PoE Switches, you need to enable the RSTP (Rapid Spanning Tree Protocol) for the ports connecting to other switches. For instance, in the case illustrated in the earlier section, you need to enable the RSTP for Port 1 and 5 of PoE Switch 1, Port 2 and 3 of PoE Switch 2 and Port 3 and 4 of PoE Switch 3.
For GV-POE0801 / 1601 / 2401
To enable the RSTP and configure the STP port settings, follow the steps below. Here we use GV-POE2401 as an example.
- Open the Web browser and log into the Web interface of your GV-POE Switch.
- On the main page, click Spanning Tree and select STP Bridge Settings.
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- In the STP Mode column, select RSTP and click Submit to apply. Under the Bridge Status, the STP Mode displays RSTP upon successful settings.
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- Under Spanning Tree, select STP Port Settings.
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- In the Port No. column, select the port number in use and click Submit to apply. Repeat this step until you have configured the STP port settings for all the connected ports.
Note: After submitting the settings each time, you will be prompted to reboot the device to apply the configuration.
For GV-POE0811 / 1611 / 2411
To enable the RSTP for specific ports, follow the steps below. Here we use GV-POE2411 as an example.
- Open the Web browser and log into the Web interface of your GV-POE Switch.
- On the main page, select RSTP under Configuration.
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- In the Protocol Enabled columns, tick the boxes for the ports in use and click Apply.
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