XGS-1930-28: SFP+ Ports not working in Nebula Cloud Management

sherbs
sherbs Posts: 6  Freshman Member
First Comment Third Anniversary
in Switch

I have a couple of XGS-1930-28 Zyxel Nebula Switches. I've activated 2 last year, they work fully as expected.

I recently tried to add 3 more switches and noticed the following behaviour:

When I add them using Nebula Cloud, the switch itself looks fine, but the SFP+ Ports do not work and I cannot get 10G Links up.

When I configure the same Switch with same SFPs & connection in local admin mode the SFP+ Slots work fully as expected.

When I then change back to Nebula cloud, the SFP+ Ports initially work and are shown active in Nebula Cloud, however after 2-3 mins they stop working and get dark.

Any Idea? Stefan

Best Answers

  • Zyxel_Judy
    Zyxel_Judy Posts: 1,731  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
    Answer ✓

    Hi @sherbs ,

    When the link is manually set to 10G/Full Duplex, the switch successfully syncs at 10G.
    To clarify the link configuration when the link is set as Auto, I need to confirm: Are both ends using the same transceiver (SFP-10G-SR, part number: 10-2415-03)?

  • sherbs
    sherbs Posts: 6  Freshman Member
    First Comment Third Anniversary
    Answer ✓

    Hi Judy, yes, both ends are using the same transceiver Cisco 10-2415-03. Link is now properly synced @10G Speed. So I need to set the speed in Nebula Cloud on these ports manually to 10G/Full duplex, correct?

    Thanks a lot for your support, I'm very glad you resolved the issue.

  • Zyxel_Judy
    Zyxel_Judy Posts: 1,731  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
    Answer ✓

    Hi @sherbs ,

    We assume that with your Test2 switch configuration at the other site, you have set the speed to fixed 10G. To establish a proper connection, you need to configure the same fixed speed or Auto settings on both sides, not just one end.
    Please note that we cannot guarantee the performance or compatibility of third-party transceivers with our switches. For reference, you can find the list of supported transceiver models for the XGS1930-28 in the attached compatibility sheet.

    image.png

All Replies

  • Zyxel_Judy
    Zyxel_Judy Posts: 1,731  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

    Hi @sherbs ,

    Could you please share whether they are Zyxel-branded SFP+ modules, and provide model name of your SFP+ modules?

    By the way, please enable Zyxel support and provide us with the name of your Nebula organization/site here or via the private message by clinking to my account > Message.

  • sherbs
    sherbs Posts: 6  Freshman Member
    First Comment Third Anniversary

    Hi Judy, thanks for your reply. I've enabled support as described.

    Organisation: Swisscom (Schweiz) AG
    Site Name: Itt-Ey 8, EC Product Lab @ Shared Devices Lab

    Working XGS-1930-28:

    1. eclabswitch09 - Product Lab Switch 09, 28 Port, Datacenter
    2. eclabswitch21, 24Port GE, 4x10G

    These switches are cloud managed and are equipped with Cisco 10G MM SFP+ Modules. They are working fine.

    I've used the exact same SFP+ on the new Switches and on the new ones it did not work (only in local management mode).

    The new switches are currently offline and I only will be able to connect them tomorrow 16.01.2025.

  • sherbs
    sherbs Posts: 6  Freshman Member
    First Comment Third Anniversary

    I've now connected one of the switches using Nebula Cloud.

    Organisation: Swisscom (Schweiz) AG

    Site: Itt-Ey 8, EC Product Lab

    Switch: Test 2, Serial number:S232L37000818 (XGS1930-28)

    SFP+: Cisco SFP-10G-SR, 10-2415-03

    Port 25 is equipped with this SFP.

    In the Cloud Managed Switch the link syncs to 1G only.
    In the Switch with local Management the SFP properly syncs to 10G

  • Zyxel_Judy
    Zyxel_Judy Posts: 1,731  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
    Answer ✓

    Hi @sherbs ,

    When the link is manually set to 10G/Full Duplex, the switch successfully syncs at 10G.
    To clarify the link configuration when the link is set as Auto, I need to confirm: Are both ends using the same transceiver (SFP-10G-SR, part number: 10-2415-03)?

  • sherbs
    sherbs Posts: 6  Freshman Member
    First Comment Third Anniversary
    Answer ✓

    Hi Judy, yes, both ends are using the same transceiver Cisco 10-2415-03. Link is now properly synced @10G Speed. So I need to set the speed in Nebula Cloud on these ports manually to 10G/Full duplex, correct?

    Thanks a lot for your support, I'm very glad you resolved the issue.

  • sherbs
    sherbs Posts: 6  Freshman Member
    First Comment Third Anniversary

    … still wondering why the two switches configured earlier work, they still have set the Link value "auto"

  • Zyxel_Judy
    Zyxel_Judy Posts: 1,731  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
    Answer ✓

    Hi @sherbs ,

    We assume that with your Test2 switch configuration at the other site, you have set the speed to fixed 10G. To establish a proper connection, you need to configure the same fixed speed or Auto settings on both sides, not just one end.
    Please note that we cannot guarantee the performance or compatibility of third-party transceivers with our switches. For reference, you can find the list of supported transceiver models for the XGS1930-28 in the attached compatibility sheet.

    image.png

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