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Linksys LGS108P Frequently Asked Questions

TABLE OF CONTENTS
 
PRODUCT INFORMATION
 
1.  What is the Linksys LGS108P 8-Port Business Desktop Gigabit PoE+ Switch?
2.  What is the difference between PoE and PoE+?
3.  What kind of devices can be connected to the switch?
4.  What is the advantage of having a switch when it comes to data transfer?
5.  What is the maximum power budget for the PoE ports?
6.  What protocols are supported by the Linksys LGS108P?
7.  Can I wall mount the switch?
8.  Does the switch support jumbo frames?
9.  Can I use the switch to share internet connection to all computers in a network?
10.  On which ports on the switch can I plug in a PoE device?
11.  What is the warranty period for the Linksys LGS108P?
12.  What are the supported PoE standards of the switch?
13.  Does the switch have a Quality of Service (QoS) feature?

TROUBLESHOOTING
 

PRODUCT INFORMATION

1.  What is the Linksys LGS108P 8-Port Business Desktop Gigabit PoE+ Switch? 

The Linksys LGS108P 8-Port Business Desktop Gigabit PoE+ Switch is an unmanaged eight-port gigabit switch with PoE+ support.  This switch offers a quick and easy solution to extend your office network with a plug-and-play installation.  It is also useful in transferring data across a local network at up to gigabit speeds.  To learn more, click here.
 
2.  What is the difference between PoE and PoE+? 

Power over Ethernet (PoE) is a technology that enables an ethernet network cable to deliver both data and power.  PoE+ is simply the upgrade for PoE and the more current standard for this technology.
 
3.  What kind of devices can be connected to the switch? 

You can connect the following devices to the Linksys LGS108P: 
  • Computers
  • Routers
  • Switches
  • Network printers
  • Other network devices    

4.  What is the advantage of having a switch when it comes to data transfer? 

The switch acts as a repeater that regenerates the data signals as they pass through it.  This feature acts as a safeguard to deter data loss and ensures that transmissions arrive securely at their destinations.  Moreover, a switch is capable of intelligent filtering of data based on the source and destination as compared to a repeater which can only regenerate the signal without checking the recipients.
 
5.  What is the maximum power budget for the PoE ports?
 
The Linksys LGS108P has a dedicated PoE+ power budget of 50W.
 
6.  What protocols are supported by the Linksys LGS108P?

The Linksys LGS108P switch complies with the IEEE 802.3, 802.3u, 802.3x, 802.3ab, 802.3az, 802.3af, and 802.3at
 standards.
 
7.  Can I wall mount the switch?

Yes, the Linksys LGS108P can be wall mounted.
 
8.  Does the switch support jumbo frames?

Yes.  The Linksys LGS108P supports jumbo frames.
 
9.  Can I use the switch to share internet connection to all computers in a network? 

No, the switch does not have this capability.  Only routers or modems with DHCP capabilities can allow sharing of internet connection between computers.  However, a switch can allow more computers to connect to a local network.  For the computers to have internet access, the switch should be connected to a router or a modem.

 
10.  On which ports on the switch can I plug in a PoE device? 

You can plug a PoE device to any one of the PoE ports on the switch, which are Ports 1 to 4 (the first four ports).  These ports have PoE+ support.

11.  What is the warranty period for the Linksys LGS108P?

The Linksys LGS108P v1 has a limited lifetime warranty while the Linksys LGS108P v2 has a 5-year warranty.

12.  What are the supported PoE standards of the switch? 

The switch only supports IEEE 802.3af (PoE) and 802.3at (PoE+).  Any PoE devices not supporting these standards can't be powered up by the switch.

13.  Does the switch have a Quality of Service (QoS) feature?

Yes, the switch has a QoS feature.  However, the Linksys LGS108P is not a manageable switch; therefore, the QoS setting is predefined and can't be configured or customized.

TROUBLESHOOTING


1.  What should I do if the switch experiences excessive data collisions?

When this happens, make sure that the network cabling is crimped securely and installed properly.

2.  What should I do if my computer cannot connect to the internet while connected to the switch?

Follow the steps provided below to resolve this issue:
 

Step 1:
Verify if the switch and the computer are connected properly and the indicator lights on the switch are properly lit as outlined below: 

 

  • System - Solid blue when the switch is powered up
  • Link/Act/GB - Solid green or orange depending on the speed link up
  • PoE - Solid green if the power is up for the PoE device
  • PoE Max - Solid orange if reaching 85% of the maximum power budget
 
To learn more about the indicator lights and other features of the switch, click here.

Step 2:

Power down everything then power up the switch then do the same to the computer. 
 
NOTE:  Only routers or modems with DHCP capabilities can allow sharing of internet connection between computers.  For a computer on a switch to have internet access, the switch should be connected to a router or a modem.
 
3.  How is PoE port prioritization done?

The switch has a feature called PoE prioritization where power is provided based on port priority for PoE devices connected to the PoE ports.  This follows the criteria below:

 
a.  Port 1 has higher priority
b.  The higher the port number, the lower the priority
c.  Rebooting the switch reprioritizes the PoE device per port

An example of this is if there are PoE devices in Ports 1 to 3 that have maxed out the power budget on the switch, if a PoE device is connected to Port 4, this connection will be declined and the switch will not be able to provide power to the PoE device.  You can then unplug the device in Port 1 to provide power to Port 4 for the PoE device connected to it. 

If the PoE device is reconnected back to Port 1, Port 1 will remain turned OFF.  In order to restore power to Port 1, you can either unplug the PoE device from Port 4 or reboot the switch.  Rebooting the switch reprioritizes the PoE devices on each of the ports.

This feature is only applicable for ports that have PoE devices connected to them.  If a connected device is non-PoE, this behavior will not apply.


4.  My PoE device is not powering up, what should I do? 

If your PoE device is not powering up, you can do the following:

 
  • Verify with the vendor if it supports IEEE 802.3af and IEEE 802.3at.  The switch only supports these standards. 
  • Make sure that the PoE device is connected to a PoE port. 
  • Check if the power budget has been maxed out.  If there are several PoE devices already connected to the switch, they may have exceeded the power budget of the switch.  

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