Universal Serial Bus ({{bibref|USB1.0}}, {{bibref|USB2.0}}, {{bibref|USB3.0}}). This object contains the {{object|Interface}}, {{object|Port}}, and {{object|USBHosts}} objects. {{numentries}} {{numentries}} USB interface table (a stackable interface object as described in {{bibref|TR-181i2|Section 4.2}}). This table models master and slave USB physical interfaces that support carrying Ethernet frames, e.g. via the USB Communication Device Class. Enables or disables the interface. This parameter is based on ''ifAdminStatus'' from {{bibref|RFC2863}}. The current operational state of the interface (see {{bibref|TR-181i2|Section 4.2.2}}). {{enum}} When {{param|Enable}} is {{false}} then {{param}} SHOULD normally be {{enum|Down}} (or {{enum|NotPresent}} or {{enum|Error}} if there is a fault condition on the interface). When {{param|Enable}} is changed to {{true}} then {{param}} SHOULD change to {{enum|Up}} if and only if the interface is able to transmit and receive network traffic; it SHOULD change to {{enum|Dormant}} if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to {{enum|Up}} if still operable when the expected actions have completed); it SHOULD change to {{enum|LowerLayerDown}} if and only if the interface is prevented from entering the {{enum|Up}} state because one or more of the interfaces beneath it is down; it SHOULD remain in the {{enum|Error}} state if there is an error or other fault condition detected on the interface; it SHOULD remain in the {{enum|NotPresent}} state if the interface has missing (typically hardware) components; it SHOULD change to {{enum|Unknown}} if the state of the interface can not be determined for some reason. This parameter is based on ''ifOperStatus'' from {{bibref|RFC2863}}. The textual name of the interface as assigned by the CPE. The accumulated time in {{units}} since the interface entered its current operational state. {{list}} {{reference|an interface object that is stacked immediately below this interface object}} See {{bibref|TR-181i2|Section 4.2.1}}. Note: Since {{object}} is a layer 1 interface, it is expected that {{param}} will not be used. Indicates whether the interface points towards the Internet ({{true}}) or towards End Devices ({{false}}). For example: * For an Internet Gateway Device, {{param}} will be {{true}} for all WAN interfaces and {{false}} for all LAN interfaces. * For a standalone WiFi Access Point that is connected via Ethernet to an Internet Gateway Device, {{param}} will be {{true}} for the Ethernet interface and {{false}} for the WiFi Radio interface. * For an End Device, {{param}} will be {{true}} for all interfaces. The MAC Address of the interface. Note: This is not necessarily the same as the Ethernet header source or destination MAC address, which is associated with the IP interface and is modeled via the {{param|##.Ethernet.Link.{i}.MACAddress}} parameter. The maximum PHY bit rate supported by this interface (expressed in {{units}}). {{reference}} This is the USB port associated with this interface object. Throughput statistics for this interface. The CPE MUST reset the interface's Stats parameters (unless otherwise stated in individual object or parameter descriptions) either when the interface becomes operationally down due to a previous administrative down (i.e. the interface's {{param|#.Status}} parameter transitions to a down state after the interface is disabled) or when the interface becomes administratively up (i.e. the interface's {{param|#.Enable}} parameter transitions from {{false}} to {{true}}). Administrative and operational interface status is discussed in {{bibref|TR-181i2|section 4.2.2}}. The total number of bytes transmitted out of the interface, including framing characters. The total number of bytes received on the interface, including framing characters. The total number of packets transmitted out of the interface. The total number of packets received on the interface. The total number of outbound packets that could not be transmitted because of errors. The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol. The total number of packets requested for transmission which were not addressed to a multicast or broadcast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were not addressed to a multicast or broadcast address at this layer. The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space. The total number of packets that higher-level protocols requested for transmission and which were addressed to a multicast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were addressed to a multicast address at this layer. The total number of packets that higher-level protocols requested for transmission and which were addressed to a broadcast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were addressed to a broadcast address at this layer. The total number of packets received via the interface which were discarded because of an unknown or unsupported protocol. USB Port table. This table models master and slave USB physical ports on the device. The textual name of the port. USB specification version supported by the Port. Example: "1.1" Type of the USB connection. Receptacle of the port. Current speed of the USB connection. {{enum}} 1.5 Mbits/sec (187.5 KB/sec) defined in {{bibref|USB1.0}} 12 Mbits/sec (1.5 MB/sec) defined in {{bibref|USB1.0}} 480 Mbits/sec (60 MB/sec) defined in {{bibref|USB2.0}} 5.0 Gbits/sec (625 MB/sec) defined in {{bibref|USB3.0}} Power configuration of the USB connection. {{enum}} Only applies when {{param|Type}} is {{enum|Device|Type}}. In other cases value is {{enum|Unknown}}. This object models the CPE's USB Host controllers. See {{bibref|TR-181i2|Appendix XVII}} for Theory of Operation. {{numentries}} Table of CPE USB Host controllers. Enables or disables the USB Host controller. User-readable host controller name. Type of USB Host Open Host Controller Interface Enhanced Host Controller Interface Universal Host Controller Interface Extensible Host Controller Interface When set to {{true}}, {{param}} enables the Host Controller to invoke Power Management policy, i.e. controlled Suspend (see {{bibref|USB2.0}}, Chapters 4.3.2, 7.1.7.6, and 11.9). When set to {{false}} {{param}} immediately disables the Host controller Power Management policy. USB specification version with which the controller complies. Example: "1.1" {{numentries}} Table of connected USB devices. Device number on USB bus. USB specification version with which the device complies. Example: "1.1" Class Code as assigned by USB-IF. When 0x00, each device specifies its own class code. When 0xFF, the class code is vendor specified. Subclass code (assigned by USB-IF). Device release number. Protocol code (assigned by USB-IF). Product ID (assigned by manufacturer). Vendor ID (assigned by USB-IF). Device Manufacturer string descriptor. Device Product Class string descriptor. Device SerialNumber string descriptor. Hub port on parent device. 0 when no parent. {{reference}} This is a reference to the USB host device to which this (external) USB device is connected. Speed of the USB device. {{enum}} Internal signaling between the connected USB device and the USB Host Controller provide the information needed to determine the negotiated rate. 1.5 Mbits/sec (187.5 KB/sec) defined in {{bibref|USB1.0}} 12 Mbits/sec (1.5 MB/sec) defined in {{bibref|USB1.0}} 480 Mbits/sec (60 MB/sec) defined in {{bibref|USB2.0}} 5.0 Gbits/sec (625 MB/sec) defined in {{bibref|USB3.0}} {{reference}} This is a reference to the parent USB device (e.g. hub device). This is {{empty}} for a device connected to the Host controller (root hub). Number of ports. Only applies for hub device, equal to 0 for other devices. When {{true}} the associated Device is in a suspended (i.e. low-power) state (see {{bibref|USB2.0|Chapter 11.9}}). When {{false}} the associated Device is in any of the other states specified by the USB 2.0 Device State Machine (see {{bibref|USB2.0|Chapter 9.1.1}}). When {{true}} the associated device is at least partly powered by a local source (see {{bibref|USB2.0|Chapter 9.4.5}}). When {{false}} the associated device draws all the current it needs from the USB bus. {{numentries}} Table of device configurations. The identifier for each Device Configuration. {{numentries}} Table of device interface descriptors. Number of this interface (from USB interface descriptor). Class Code as assigned by USB-IF. When 0x00, each interface specifies its own class code. When 0xFF, the class code is vendor specified. Subclass code (assigned by USB-IF). Protocol code (assigned by USB-IF).