RE: [load balancing] VIP/Real Address conflict

From: Henrique Duarte (cleanbhIZZAThotmail.com)
Date: Fri Feb 22 2002 - 13:17:30 EST

  • Next message: Casassa, Nathan: "RE: [load balancing] Alteon Features?"

    Hello guys,

    thank you a lot for the great feedback. I decided to make one email reply
    to all the questions that you guys posted to make it easier to read the
    thread. I configured the loopback interface on one of the servers because I
    thought it might work doing DSR, but it didn't (I tried it both ways). To
    do that I created a microsoft loopback adapter in my iis server and
    configured it with the ip address of the VIP, so the server would know to
    respond to that IP. I wasn't sure if you actually need that for the Alteon
    to work. On my manual it said that you needed to enable submac in order for
    it to work, but there is no such command on the WebOS. I also tried
    configuring the ports as Dalvenjah suggested (port 1 "servr ena" and port 2
    and 3 "clien ena", as well as all 3 ports clien and servr ena, but that
    didn't solve the problem either. To answer Lance's question, I did make
    group 1 aligned with VIP1 and removed the loopback interface from the
    server, but that didn't work either. All the subnet masks are correct for
    the Alteon's and servers subnet (regular class C subnet: 255.255.255.0). So
    what I did was start over from scratch. I deleted all the interfaces and
    set them up again, but when the time came to enable the VIP I got the same
    error as before. This is my final configuration:

    >>Server Load Balancing- cur
    Current Server Load Balancing settings:
      ON, direc disabled, imask 255.255.255.0
      mnet 255.255.255.0, mmask 255.255.255.0, pmask 255.255.255.0
      btshf 0

    Current health scripts settings:

    Current real servers settings:
      1: 192.168.0.127, enabled, name web02, wght 1, tmout 10, mcon 200000
        backup none, intr 2, retry 4, restr 8, remot disabled, proxy disabled
        handle URL cookie: disabled
        1: any
        real ports:
          http: vport http, group 1
            virtual server: 1, 192.168.0.250, disabled
      2: 192.168.0.128, enabled, name web03, wght 1, tmout 10, mcon 200000
        backup none, intr 2, retry 4, restr 8, remot disabled, proxy disabled
        handle URL cookie: disabled
        real ports:
          http: vport http, group 1
            virtual server: 1, 192.168.0.250, disabled

    Current virtual servers settings:
      1: 192.168.0.250, disabled
        virtual ports:
          http: rport http, group 1, metric leastconns, backup none
            real servers:
                1: 192.168.0.127, weight 1, enabled, backup none
                2: 192.168.0.128, weight 1, enabled, backup none

    Current filters:

    Current port settings:
      1: 0.0.0.0, client enabled, server enabled
         filt disabled, filters: empty
      2: 0.0.0.0, client enabled, server enabled
         filt disabled, filters: empty
      3: 0.0.0.0, client enabled, server enabled
         filt disabled, filters: empty
      4: 0.0.0.0, client enabled, server disabled
         filt disabled, filters: empty
      5: 0.0.0.0, client enabled, server disabled
         filt disabled, filters: empty
      6: 0.0.0.0, client enabled, server disabled
         filt disabled, filters: empty
      7: 0.0.0.0, client enabled, server disabled
         filt disabled, filters: empty
      8: 0.0.0.0, client enabled, server disabled
         filt disabled, filters: empty
      9: 10.0.0.198, client enabled, server enabled
         filt disabled, filters: empty

    Current Global SLB settings:
      OFF, dns enabled, ttl 60, local disabled, one disabled
      http enabled, usern disabled, minco 1024, intr 1, wght 1

    Current remote site settings:

    Current sync settings:
      filt enabled, ports enabled, prios enabled, pips disabled

    Current peer switch settings:

    >>Server Load Balancing-

    ps. I can access the web02 and web03 directly no problem, both ping and
    http.

    Thank you everybody for sharing your knowledge. This is the first time I
    post something in a list and it has been a very nice experience.

    Henrique

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