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  • 1.  Maximum of ISL trunk per SAN switch

    Posted Wed June 05, 2024 05:55 PM
    Edited by Bernard Fay Fri June 14, 2024 02:20 PM

    Hi,

    I understand there is a maximum of 8 ports per ISL trunk. I read there is maximum of number of ISL trunk we can have per SAN switch.  Where can I find this maximum of ISL trunk in a switch?  The specs of my model (SAN128B-6) of switch doesn't show this maximum.  My big question is to know if I will be able to create 4 ISL trunks with 8 ports per trunk?  I am still not sure if I will use 8 ports per trunk. 

    Thanks



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    Bernard Fay
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  • 2.  RE: Maximum of ISL trunk per SAN switch

    Posted Thu June 06, 2024 01:27 AM

    Hello Bernard,

    according to FOS Scalability guide, there is no limit of ISLs per switch, the limit is your port count.



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    Sergei Kubin
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    Original Message


  • 3.  RE: Maximum of ISL trunk per SAN switch

    Posted Thu June 06, 2024 09:52 AM
    Edited by Bernard Fay Thu June 06, 2024 10:04 AM

    Thanks Sergei! 

    I didn't know about this document.  It clears up the subject for me. 



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    Bernard Fay
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    Original Message


  • 4.  RE: Maximum of ISL trunk per SAN switch

    IBM Champion
    Posted Thu June 06, 2024 02:28 AM
    Edited by Nezih Boyacioglu Thu June 06, 2024 02:28 AM

    For SAN128B-6 I prefer to use Q Flex Ports for trunks. port grouping is important for the trunks. 

    here's the port groups on your san128b-6

     https://techdocs.broadcom.com/us/en/fibre-channel-networking/fabric-os/fabric-os-administration/9-2-x/v26799888/v26800033/v26799817.html



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    Nezih Boyacioglu
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    Original Message


  • 5.  RE: Maximum of ISL trunk per SAN switch

    Posted Thu June 06, 2024 10:04 AM
    Edited by Bernard Fay Thu June 06, 2024 10:04 AM

    I understand and agree with you about Q-Flex ports for trunks. But we cannot use those ports as we don't have licenses for them.

    Thanks for the information. 



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    Bernard Fay
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    Original Message