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ChayneC's avatar
ChayneC
Aspirant
Nov 24, 2022
Solved

A Set of clustered S3300-28X need a bit of guidance

Hi All

 

As the title states in my work office we have 3 S3300 Switched linked together and they all work great 
we have a link cable going into SW1 and it shares the access across the switches

We would like to add a 2nd link cable to SW3 which is downstairs for redundancy.
When we do we get internal loopbacks and network failure.

What would the best way to do this be?

 

Currently We Have a clustered Pair of SRX as our main router/Firewall which feeds to SW1

We would like to run a secondary cable from the SRX to SW3 basically.

Thanks for taking the time to read 
and for any advise offered

  • ChayneC,

     

    Welcome to the community!

     

    Would it be possible if you could provide a network topology (what ports are the switches connected to each other)?

    You would generally configure a LAG on the switches for redundancy.

     

    Lastly, please let us know what configurations are done to the switches (are there LAGs or VLANs involved).

     

     

    Regards,

     

    JeraldM

    NETGEAR Community Team

     

4 Replies

  • JeraldM's avatar
    JeraldM
    NETGEAR Employee Retired

    ChayneC,

     

    Welcome to the community!

     

    Would it be possible if you could provide a network topology (what ports are the switches connected to each other)?

    You would generally configure a LAG on the switches for redundancy.

     

    Lastly, please let us know what configurations are done to the switches (are there LAGs or VLANs involved).

     

     

    Regards,

     

    JeraldM

    NETGEAR Community Team

     

    • ChayneC's avatar
      ChayneC
      Aspirant

      Thank you for the reply.
      I will try answer all your questions.
      I can add screen grabs of the switch info from the webgui if that'd be easier

      These are our core switches

      We have three
      Switch 1 is our ustairs office
      Switch 2 is for our servers and customers servers

      switch 3 is for our workshop.
      on The Switches we use Ports 25+26 to connect to each other

       

      currently there is a main link to our Firewall plugged into switch 1

      we would like to plug a backup link into switch 3

       

      We have many VLANS spread acrtoss the switches

      Currently it does not appear as though we have LAG enabled on any ports and there appears to be STP configured.

      This setup was inherited by myself, I t was not setup by me.

      • JeraldM's avatar
        JeraldM
        NETGEAR Employee Retired

        Hi ChayneC,

         

        For the switches, is this how the connection goes? Please see the following:

        p25 of Switch 1 connects to p25 of Switch 2

        p26 of Switch 2 connects to p25 of Switch 3

        p26 of Switch 3 connects to p26 of Switch 1

         

        If these aren't the case, it would be best to provide a network topology to better assist you. Also, please confirm if all switches are using RSTP since the SRX uses RSTP by default unless that was configured differently.

         

         

        Regards,

         

        JeraldM

        NETGEAR Community Team

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