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GS1900-24 Firmware Issues

AmodinAmodin Posts: 4  Junior Member
edited September 30 in Questions
The past two times I've updated my two switches (GS1900-24) I have noticed that if you have link aggregation turned on for Port 25 and 26 (the fiber ports), when you apply a firmware update and reboot the switches appear to do something similar to a broadcast storm and literally freeze up.

The only course of action that can be taken is to unplug one of the fiber connections and switches appear to recover.  However, once you get into the configuration and look at link aggregation, the configuration no longer shows aggregation and has to be set up again. 

I've also noticed at one time when I updated firmware, it even reset my user/pass information back to default.  Since the 2018 firmware update, it stopped doing that and was not a problem with the 6/27/2019 firmware either.

So why does a firmware update reset link aggregation and cause these switches to literally stop responding?


#Biz_Sep_2019
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Answers

  • Zyxel_DerrickZyxel_Derrick Posts: 5  Zyxel Moderator
    Hi Amodin

    Did you save the configuration before upgrading the firmware?
    If no, after upgrading the firmware, the configuration will return to the last configuration that you have saved
    Thanks

    Best regards,
    Zyxel_Derrick

  • AmodinAmodin Posts: 4  Junior Member
    That would explain the second issue I had with regards to the default user/pass issue I ran across, but not the link aggregation issue, as I had saved the configuration on both switches.  When firmware is updated that link aggregation gets lost and I have to physically disconnect the second fiber port to literally free up the network and whatever traffic is being generated.
  • Zyxel_DerrickZyxel_Derrick Posts: 5  Zyxel Moderator
    Hi Amodin

    We can't reproduce your issue locally
    Therefore, could you tell us which firmware version you are using?
    Also, which firmware version you upgrade from?
    If possible, could you provide switch's config to us?
    Thanks

    Best regards,
    Zyxel_Derrick
  • AmodinAmodin Posts: 4  Junior Member
    I had the original firmware from 2017, V2.40(AAHL.0) | 11/14/2017.  I am updated to V2.40(AAHL.2) | 06/05/2019.  I had updated from one in between these, and that's when I first noticed this (V2.40(AAHL.1)_20180705 | 07/05/2018).

    I can send the config, the link aggregation is about the most complex thing I have right now.  :)  Just let me know where you send them (I have two switches, and both configs, which are the same really).


  • Zyxel_DerrickZyxel_Derrick Posts: 5  Zyxel Moderator
    Hi Amodin

    You can directly PM me the config
    Also, could you describe your procedure of upgrading the firmware?
    Thanks for your help in advance

    Best regards,
    Zyxel_Derrick 
  • AmodinAmodin Posts: 4  Junior Member
    PM sent.  Thanks for any assistance.
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