The ornamental design for a networkingdevice, as shown and described.
FIG. 1 is a perspective view of the networking device showing my new and ornamental design;
FIG. 2 is an alternate perspective view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a side view thereof;
FIG. 6 is an alternate side view thereof; and,
FIG. 7 is an alternate side view thereof.
The broken lines in the views are included for the purpose of illustrating portions of the networking device that form no part of the claimed design. In addition, the central rear side surface that can only be seen in the FIG. 4 view, opposite the triangle structure, forms no part of the claimed design.