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Jonathan_c's avatar
Jonathan_c
Icon for Cirrus rankCirrus
Jul 20, 2025

No traffic on network card in virtual Big-IP

Hi, We have two virtual deployments of F5 version 17.1.2.2 in a VMware environment,  Each deployment has 3 network cards: MGMT external (for VSs) internal (for backend pool) Lately we started...
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VGF5's avatar
VGF5
Icon for Cumulonimbus rankCumulonimbus
Jul 20, 2025

According to https://my.f5.com/manage/s/article/K000092620 this behavior is linked to a bug in the VMware hypervisor, particularly when a Transport Node Profile (TNP) is applied to a cluster without first detaching a pre-existing TNP. This can cause intermittent connectivity issues where:

The vNIC stops processing traffic.

You can't ping the self-IP associated with the affected NIC.

Traffic forwarding fails intermittently.

Restarting the VM or toggling the NIC temporarily