Multicast not working with IPoIB with ESXi 6.5

Infrastructure & Networking Software And Drivers Virtualization For Infiniband And Ethernet
1

My lab is running:

  • ESXi, 6.5.0, 4887370
  • OFED 1.8.2.5
  • ConnectX-2 MHQH29C with 2.9.1000
  • IS5035 switch with subnet manager

I followed the instructions here: 10Gb SFP+ single port = cheaper than dirt | ServeTheHome Forums 10Gb SFP+ single port = cheaper than dirt | ServeTheHome Forums

I am able to get IPoIB working and all of the hosts can ping each other.

However, multicast is not working. How can I get multicast to work? It is preventing vSAN from working.

2

The solution was to upgrade to ESXi 6.5 update 1 which contains vSAN 6.6. vSAN 6.6 removes the need for multicast.