This object specifies how often, in minutes, Inverse ARP datagrams are sent on the channel, and it applies only when the channel uses aal5snap encapsulation. An administrator can use it to control how frequently the channel re-resolves the protocol address of the far end, or set it to 0 to disable Inverse ARP entirely on that channel. For example, setting this to 5 would cause the channel to send Inverse ARP requests every five minutes to keep its address mapping current.