LACP on VSP 7000 help

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  • brydo
    Member
    • Jan 2014
    • 8
    #1

    LACP on VSP 7000 help

    Hi,

    I have a Core thats made up of VSP 7024s and VSP 4000, the VSP 7000s feed 10Gb fibre to all Top of Rack Switches. (see pic attached)

    I have a requirement to have LACP on the Core VSP 7000s, at the moment they only have an IST between them and no MLT. the IST is configuired on ID 1 on ports 1/33 and 1/37 carrying VLAN IDs 1000, 4051 and 4052

    SMLTsysID is configured on each VSP7000 and LACP is configured globally.

    I have no fabric connect cable for the (red and black) ports.

    Can I create a MLT using one of the 10Gb ports on the switch and use this to allow LACP between the two? If so, is it service affecting ? I dont have spares to test this and this network is critcal.

    Cheers.

    Craig
    Attached Files
    Tags: lacp, mlt, vsp 7000
  • toehit
    Hot Shot
    • Aug 2013
    • 15
    #2
    Hi Craig:

    Best guide I found to use LACP in an SMLT configuration was here:
    https://downloads.avaya.com/css/P8/documents/100179549


    That being said - are you looking to have LACP and an IST between the two core switches? I wasn't 100% clear on that.

    Avaya doesn't reccomend LACP over an IST and I think you'd get into some trouble if you did an IST between the two core switches AND an LACP link between them.

    However, if your're running an SMLT core you can certainly tie LACP trunks into the core across the two devices to make use of the resiliency, we do it for Storage appliances.

    Feel free to reach out if I'm missing the mark on your question or if you want me to provide you a sample config of how we did our SAN interconnects.

    Regards,
    -Ken

    Comment

    • brydo
      Member
      • Jan 2014
      • 8
      #3
      Lacp smlt.

      Hi,

      I already use LACP and SMLT at my Top of Rack switches. I have two 7024 XTs in each rack and the servers are utilising LACP across them. The racks are connected via the thick fabric connect cabling.

      My cores are made up of 2x VSP4ks (OSPF) and 2x VSP7024 XLSs, the 7024s are horizontal I want to LACP between the two core VSP7024s.

      I want to use the core XLSs as additional server ports on one site (just temporary) as I'm due new VSP7254XQSs as the 4 original cores devices will be collapsed to 2.

      Its hard to descripe in a paragraph.

      Craig

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