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K1974_98730's avatar
K1974_98730
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May 10, 2018
Solved

Devices are not synchronizing configuration to each other

Hi folks,   I´m new on Big IP and started my studies on LTM. I´ve set up two VEs running 13.1.0.5 software and I´m facing some issues in regards of synchronization of the configuration. I tried to...
application delivery
LTM
  • Krystian_Baniak's avatar
    Krystian_Baniak
    Apr 09, 2019

    I have also run into this caveat. I am running 13.1.1.4 on VMware Workstation 15 on Fedora 29 Linux kernel 5.0.4

     

    Thanks to the help of F5 FSE, I have managed to resolve it by adding the following DB variables on each VM on WMware Workstation 15.x:

     

    tmsh modify /sys db tm.tcplargereceiveoffload value disable

     

    tmsh modify /sys db tm.tcpsegmentationoffload value disable

     

     

    It appears that WMware loses packets when offload is enabled.

     

DNDTS_361701's avatar
DNDTS_361701
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May 17, 2018

I have the same issues. Have you had a solution for that? Thanks in advance.

 

wsanders_233261's avatar
wsanders_233261
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Jun 27, 2018

Looks like bug 658716 as reported in 13.1.X release notes (https://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/related/relnote-supplement-bigip-13-1-0-4.html)

We are having similar problems with 13.1.0.5 in a production system. Support said this bug was actually introduced in 13.0, so we had to downgrade to 12.X, which was a huge PITA because the config files are not downstream-portable.

Jun 27 14:05:27 ext-lb02 warning mcpd[27298]: 01071aea:4: CMI heartbeat timer expired, status: 10.10.16.1

Followed by HA disconnecting and daemons restarting, etc.

This is happening on only one of two pairs of HA vCMP guests. We're leaving the other pair of guests and the hypervisor alone for now.