This Gauge32 indicates how many levels down the organizational hierarchy this multicast policy was resolved from. Because UCS lets a child org inherit or override a multicast policy from its parent org, this tells an admin whether the policy actually applied here is the one defined locally or one inherited from higher up, which is exactly what you check when a VLAN's IGMP behavior isn't matching what was configured in this org. A value of 0 means the policy is defined directly at this org level, while 2 would mean it's inherited from two levels up.