IGMP over multi XS1930

Mar344
Mar344 Posts: 3  Freshman Member
First Comment
in Switch

We use two XS1930 switches to exchange multicast data from AV devices. Both switches are connected via an SFP+ / fiber optic cable via a trunk port.
This means that both switches have transmitter and receiver devices. There are receivers on Switch 1 which receive data from a transmitter on Switch 2 and vice versa.
Local IGMP works perfectly on both switches. If switches are connected together, I have to switch IGMP off.
Only one switch is configured as a querier.
What configuration must be made so that IGMP works via both switches in a VLAN?
We have activated the Layer3 option on both devices.
THX

All Replies

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,228  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
    edited June 2

    Hi @Mar344 ,

    You can refer to the Networked AV Mode Wizard section in the XS1930 User Guide (pages 65-75).

    If the issue still recurs, please share the following information when two XS1930 switches are connected together:

    1. Complete network topology including Switches and Transmitter and receiver devices positions, connected port.
    2. Detailed symptoms you observe
    3. Tech-support files generated after the symptoms occur

    Zyxel_Judy

  • Mar344
    Mar344 Posts: 3  Freshman Member
    First Comment

    Hi
    In order for IGMP to function correctly across multiple switches, the Querier switch requires a management IP address on the multicast VLAN.
    Furthermore, ‘Unknown Multicast Frame to Querier Port’ must be set to ‘Forwarding’ on the remote switches.
    Now our test setup works perfectly.

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