ESXi

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  • 1.  Duplicate ACK traffic being seen on one of our hosts

    Posted Apr 02, 2013 01:10 PM

    Hello,

    Noticing the above during a recent network check. Also seems the traffic is using port 8182, hosts are in a cluster. Just checking if thats normal

    and why its not happening on other hosts we have in the cluster. Hosts running 5.0



  • 2.  RE: Duplicate ACK traffic being seen on one of our hosts
    Best Answer

    Posted Apr 02, 2013 01:12 PM

    Hi,

    Port 8182 is used by the HA service. You could try to use "Re-configure HA" and see if

    it changes anything, but it might actually not be any problem.



  • 3.  RE: Duplicate ACK traffic being seen on one of our hosts

    Posted Apr 02, 2013 01:22 PM

    Tx for the quick reply, i'll check it out



  • 4.  RE: Duplicate ACK traffic being seen on one of our hosts

    Posted Apr 02, 2013 02:00 PM

    Where do you see this traffic? From virtual machines or from ESXi vmkernel interfaces?

    As noted above this portrange is typical for VMware infrastructure communication like HA and possible vMotion too.



  • 5.  RE: Duplicate ACK traffic being seen on one of our hosts

    Posted Apr 02, 2013 02:03 PM

    thanks folks - i reconfigured HA on the problem host and ran a trace - the DACK's have disappeared!