The number of OSPFv3 Hello packets sent on the
interface. This number is incremented each time
an OSPFv3 Hello packet is sent out of an
OSPFv3 enabled interface.
Discontinuities in the value of this counter can
occur at re-initialization of the management
system. The counters can be cleared for any
interface using 'clear ipv6 ospf3 statistics'
command