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ProLiant BL460c G7 packet drops on Hyper-V 2016

Occasional Contributor

ProLiant BL460c G7 packet drops on Hyper-V 2016

Hi HPE Community,

I have a HP C7000 with the following modules:

  1. 6 x HP ProLiant BL460c G7 Blades with ROM version I27, ILO v1.2, Power Management Controller v1.6
  2. 2 x HP VC FlexFabric 10GB/24-port (571956-B21) on version 3.18.
  3. 2 x OM (456204-B21). Tray is on version 1.7, Insight v2.5.3 and Fan on version 2.9.4
  4. Each HP VC FlexFabric is connected to a pair of HP 6600ml-48G-4XG J9452A switches.

We setup a Hyper-V 2016 farm and installed CentOS 7 guest virtual machines (VM). During the setup of the application, our developers noticed that when packets are sent out, there is always some missing bytes that 'drops' the packets.

When we did some test by performing a ping test and adjusted the packet size between 1470 to 1500 and noticed that drops occured between 1473 to 1493 using the below commands:

ping -s 1473 ( is the default gateway)

ping -s 1493 ( is the default gateway)

However, when we connect two machines on to the HP 6600 switches, both running Centos 7 and retried the tests, we had no issues with the pings.

It seems that the issue seems on either:

  1. The Virtual Connect
  2. The Blades
  3. The Hyper-V host

How can we test?