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  • 1.  Load Balance about Hunt

    Posted 05-29-2019 19:51
    Hi, All

    I am testing for Hunt of  LB feature. 
    The network architecture for this test scenario is as below.


    Router 1 has the service-policy which are defined  cost 10 for internet vector and cost 20 for internet 2 vector about service-A. 
    Router 2 has the service-policy which are defined  cost 20 for internet vector and cost 10 for internet 2 vector about service-B.

    The output of show load-balance command on Router1 is as below.
    The output of show load-balance command on Router12 is as below.

    I would like to use the vector internet line as primary line for service-A from Router 1 and the vector internet2 line as primary line for service-B from Router 2.

    But Router 1 and Router 2 are using the vector internet line as primary line. 

    I wonder whether my test scenario is possible or not. If yes, please check my configuration attached by me.

    Thanks,
    Sangjun



    ------------------------------
    Sangjun Bae
    Seoul
    +82-2-3469-2944
    ------------------------------

    Attachment(s)

    txt
    router1.txt   11 KB 1 version
    txt
    router2.txt   11 KB 1 version


  • 2.  RE: Load Balance about Hunt

     
    Posted 05-30-2019 09:08
    Sangjun, I looked at your configuration of routers test1 and test2. 

    So, here are two service flows I see that you can support with your configuration:
    1). tenant-test1 --> test1.test1 --> test2.test2 --> service-test2

2). tenant-test2 --> test2.test2 --> test1.test1 --> service-test1​

    Now, service-test2 has policy-test2, which puts lower cost on "internet" vector.

    service-test1 has policy-test, which put lower cost on "internet2" vector.

    Therefore, service flow number (1) will use 20.20.20.0/24 LAN as its primary path between test1.test1 and test2.test2, while service flow number (2) will use 30.30.30.0/24 LAN as it primary path between test2.test2 and test1.test1.

    Also note that your configured service policies in the attached configs do not match the costs shown in "show load-balancer" screen shots.  Specifically, we should see costs 50 and 100 in your service-test1__test1 service route, but instead we see 10 and 20.

    You may want to check this discrepancy.

            service-policy     policy-test
            name                 policy-test
            lb-strategy          hunt

            vector               internet
                name      internet
                priority  100
            exit

            vector               internet2
                name      internet2
                priority  50
            exit
            session-resiliency   none
            path-quality-filter  false
            best-effort          true
        exit

        service-policy     policy-test2
            name                policy-test2
            lb-strategy         hunt

            vector              internet
                name      internet
                priority  10
            exit

            vector              internet2
                name      internet2
                priority  20
            exit
            session-resiliency  none
        exit​
     
    Finally, when you are obtaining "show load-balancer" output, you should run this command for "service-test1" on router "test2", and for "service-test2" on router "test1". 

    ------------------------------
    Gene Shtirmer
    Sales Engineer
    Randolph NJ
    (973) 610-5676
    ------------------------------

    Original Message