Nerdy Drunk

When testing with the Brocade ICX 6450 I found that I needed to create static multicast group entries, or manually set multicast to version 3, in order to allow vSAN multicast traffic to work correctly. This behavior was not observed when working with Brocade VDX 6740, HP v1910, or various NetGear switches.

Multicast Static Groups for vSAN

SSH@MATX01BRSW01#conf t
SSH@MATX01BRSW01(config)#ip multicast passive
SSH@MATX01BRSW01(config)#ipv6 multicast passive
SSH@MATX01BRSW01(config)#vlan 201
SSH@MATX01BRSW01(config-vlan-201)#multicast active
SSH@MATX01BRSW01(config-vlan-201)#multicast static-group 224.1.2.3 ethe 1/1/3 ethe 1/1/5 ethe 1/1/7
SSH@MATX01BRSW01(config-vlan-201)#multicast static-group 224.2.3.4 ethe 1/1/3 ethe 1/1/5 ethe 1/1/7
SSH@MATX01BRSW01(config-vlan-201)#multicast6 active
SSH@MATX01BRSW01(config-vlan-201)#multicast6 static-group ff19::1:2:3 ethe 1/1/3 ethe 1/1/5 ethe 1/1/7
SSH@MATX01BRSW01(config-vlan-201)#multicast6 static-group ff19::2:3:4 ethe 1/1/3 ethe 1/1/5 ethe 1/1/7
SSH@MATX01BRSW01(config-vlan-201)#^Z
SSH@MATX01BRSW01#wr me

Multicast Version 3

SSH@MATX01BRSW01#conf t
SSH@MATX01BRSW01(config)#ip multicast passive
SSH@MATX01BRSW01(config)#ipv6 multicast passive
SSH@MATX01BRSW01(config)#vlan 201
SSH@MATX01BRSW01(config-vlan-201)#multicast active
SSH@MATX01BRSW01(config-vlan-201)#multicast version 3
SSH@MATX01BRSW01(config-vlan-201)#multicast6 active
SSH@MATX01BRSW01(config-vlan-201)#^Z
SSH@MATX01BRSW01#wr me

How to verify VMware vSAN multicast traffic