This read-create object holds the administratively assigned name of a router entry in the usdRouterTable. Admins set it once, at router creation time, to give the router a human-readable identifier; it must be unique in the table and cannot be modified afterward. For example, an admin might create a router named "vr-customerA" via usdRouterName, and any later attempt to rename it would be rejected since the name is fixed after creation.