GLBP Query

alliasneoalliasneo Member Posts: 186

Hi everyone,

Just a quick GLBP query! I have the attached image configured and I have all devices set to preempt. I shut the interface down for Switch B and Switch C took over as the active. I assumed Switch A would have taken over as this had the highest priority?


  • mattaumattau Member Posts: 218
    I could never get consistent results with this. When I was labbing this up when I was studying for switch I remember the highest interface ip address always took over as AVF for the virtual mac that just failed. The priority and weighting didnt seem to effect it. Whereas the priority is key in deciding active and standby AVG's.

    if you change A's ip to .13 you should see what happens.
    CCNP ROUTE - passed 20/3/12
    CCNP SWITCH - passed 25/10/12
    CCNP TSHOOT - passed 11/12/12

  • MickQMickQ Member Posts: 628 ■■■■□□□□□□
    Weird. Whenever I labbed it, it always went to highest priority. GNS3 and C2691 images.
  • wavewave Member Posts: 342
    Same here...this is very strange. Perhaps its a GNS3 bug. Got a couple of physical routers you can test it on? Or try using the free Packetlife lab.

    ROUTE Passed 1 May 2012
    SWITCH Passed 25 September 2012
    TSHOOT Passed 23 October 2012
    Taking CCNA Security in April 2013 then studying for the CISSP
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