I have a strange problem, I cannot find whats the reason.
Its a vSAN Streched Cluster, 6 nodes. Almost eevery host reports:
vSphere HA agent on host cannot reach some management network addresses of other hosts: IP_addresses_from_another_DC
So, hosts in DC1 reports connectivity problems with hosts on DC2. VMKPING works ok, I mean that pings come back. I got response from the addresses from anotherDC.
Also I noticed in fdm.log:
verbose fdm [Originator@6876 sub=Cluster] ICMP data length 56 smaller than sizeof(ClusterPingData) 64
Maybe thats the problem.
additional info, in fdm logs I got:
info fdm [Originator@6876 sub=Monitor] No ping reply from x.x.x.1
info fdm [Originator@6876 sub=Monitor] No ping reply from x.x.x.2
info fdm [Originator@6876 sub=Monitor] No ping reply from x.x.x.3
But when I type in esxcli:
vmkping -I vmk2 (vSAN Network) x.x.x.1, I got:
PING x.x.x.1 (x.x.x.1): 56 data bytes
64 bytes from x.x.x.1: icmp_seq=0 ttl=62 time=0.535 ms
64 bytes from x.x.x.1: icmp_seq=1 ttl=62 time=0.578 ms
64 bytes from x.x.x.1: icmp_seq=2 ttl=62 time=0.610 ms