The vendor's authoritative identification of the network
management subsystem contained in this entity. This value is
allocated within the SMI enterprise subtree (1.3.6.1.4.1) and
provides an easy and unambiguous means for determining what
kind of server is being managed. For example, if vendor Ohso
Soft, Inc. is assigned the subtree 1.3.6.1.4.1.4242, it may
assign the identifier 1.3.6.1.4.1.4242.1.1 to its Ursa DHCP
Server.