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How does the LLDP-MED method differ from the Voice VLAN method in configuring VoIP?
The LLDP-MED (Link Layer Discovery Protocol for Media Endpoint Devices) method differs from the Voice VLAN method in that it allows the switch to configure specific parameters of directly connected LLDP-MED supported IP phones, such as their VLAN and priority. Some IP phones only allow certain parameters to be configured…
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How to add a new vendor's OUI in the Voice VLAN configuration?
In the Voice VLAN configuration, under the OUI tab, you can add the first 3 bytes of every unique MAC address for every connected phone to the OUI table. Click the "Add" button to insert a new vendor's OUI.
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What is the purpose of LLDP-MED in Quality of Service (QoS)?
LLDP-MED (Link Layer Discovery Protocol for Media Endpoint Devices) is another method for implementing QoS. It allows the Zyxel switch to configure specific parameters of directly connected LLDP-MED supported IP phones, such as their VLAN and priority.
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How to verify that the Voice VLAN configuration is working correctly for the IP Phones?
To verify that the configuration is working correctly for the IP Phones, navigate to Monitor > MAC Table and check the MAC table. The IP Phone’s MAC address should be associated with the specific VLAN. Additionally, enter the web GUI and go to Maintenance > Diagnostic > PING
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Tutorial of Switch VLAN Configuration (V4.80)
VLAN Simple Introduction VLAN is primarily used for controlling the isolation of network packets and traffic. It isolates the network at the logical layer. It prevents collisions caused by broadcast packets, ensuring smooth network operation. Note: This tutorial is suitable for Switch version 4.80 and above. If an older…
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How to create a Voice VLAN on GS1900 Series switch?
This article will contain solutions on how to configure Voice over IP (VoIP). Two methods will be discussed: Voice VLAN and LLDP-MED. Voice VLAN is a form of Quality of Service (QoS). The Zyxel Voice VLAN configures which range of source MAC address should correspond to a VLAN with an administratively configured priority.…
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Why VLAN trunking doesn’t work on the Zyxel switch?
VLAN trunking function allows frames belonging to unknown VLAN groups to pass through the switch. If the VLAN has been created, the switch will follow the VLAN table to forward the traffic. Please remove the VLAN or configure the VLAN setting correctly.
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Why VLAN trunk doesn’t work on GS1900?
VLAN trunk function allows frames belonging to unknown VLAN groups to pass through the switch. If the VLAN has been created, the switch will follow the VLAN table to forward the traffic. Please remove the VLAN or configure the VLAN setting correctly.
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Why cannot my switch routing traffic between different VLAN?
Zyxel Layer 3 switches support VLAN routing. However, some users might face routing problems between different VLANs. They usually use ping to verify the routing problem. This FAQ is going to guide troubleshooting this problem. Please check: Check if your PCs have set the default gateway as the switch’s VLAN interface IP…
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Why I cannot get IP address from my firewall after I configure LACP on my firewall and GS1900?
Please check the link aggregation setting and media type are correct on firewall and GS1900. When LACP/LAG is set, the VLAN setting on member ports of the LAG group will be ignored. Please check if the LAG group hasn't been fixed on a specific VLAN in the VLAN setting.
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What's the different between "Forbidden" and "Excluded"?
The VLAN setting on GS1900 provides two options on the VLAN port setting page, "Forbidden" and "Excluded." Both means the port is not a member of this VLAN. But "Excluded" will join this VLAN group once it receives GVRP information (GARP). "Forbidden" will prohibit this port from joining this VLAN group.
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How to configure VLAN on GS1900?
Zyxel switch provides a flexible way to configure VLAN settings. This FAQ provides step-by-step instructions on creating VLANs on GS1900. Scenario: A small office with separate VLAN 100 for employees and VLAN 200 for guests. Most employees will use Wi-Fi for work, and all guests can only use Wi-Fi to access VLAN 200. For…
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The switch port cannot link up with DAC cable, what can I do?
If your switch is an XGS/XMG/XS series switch, please go to Port > port setup to change the Media type of the connecting ports from SFP+ to DAC10G.
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Why my switches cannot connect with a DAC cable?
Zyxel XGS/XMG/XS series switch supports SFP+ and DAC-10G on fiber ports. To ensure your network stability, the media type of the port should match the cable you are using. If the media type is mismatched, the connecting ports might not be linked up, or keep linking up/down with many CRC error counts. This FAQ will guide…
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Configuring VLANs for PC and VOIP Phone
Symptoms: UserA reported an issue related to connecting a PC to the LAN network through a VOIP Phone. The setup involves a Zyxel Switch connected to a VOIP Phone, which further connects to a PC. VLANs 20 and 90 are being used, with VLAN 20 designated for PCs and VLAN 90 for VOIP Phones. Despite configuring the current…
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How to Configure VLANs on Switch from Nebula?
Symptoms: UserA reported that they were unable to find how to configure VLANs for their Empire Switch in the Nebula system. UserB also faced a similar issue and sought guidance on VLAN setup. Root Cause: The users were experiencing difficulty in configuring VLANs on their switches within the Nebula system. Solution: To…
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What happens if the switch receives frames that are already tagged or not carrying any VLAN tag?
If the switch receives frames that are already tagged, they will be classified to the VLAN group indicated on that frame's VLAN tag. If the switch receives frames not carrying any VLAN tag, these frames will be classified to the VLAN group indicated on the switch’s PVID (port VLAN ID).
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What is a PVID?
PVID stands for Port VLAN ID and is used to designate the VLAN ID assigned to untagged frames arriving at a specific port. By assigning a PVID to a port, you ensure that traffic without VLAN tags is correctly assigned to the appropriate VLAN within the switch.
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What are the egress settings for VLAN configuration on my web-managed switch?
Egress settings determine how the switch handles outgoing traffic from the VLAN. You can choose to set a port as a "tag egress member," which preserves VLAN information in outgoing traffic, or as an "untag egress member," which removes VLAN tags from outgoing traffic. This choice depends on the compatibility of the next…
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How to configure VLAN for web-managed switch?
Scenario: I have a web-managed switch and I want to configure VLAN on it. I have multiple devices connected to the switch and I want to segregate the network traffic for better management and security. I am not sure how to go about it. VLAN Concept: VLAN(Virtual Local Area Network) is a technology that allows you to…