The highest OC level, commonly referred to as STM-256, is OC-768. It is a high-speed fiber optic transmission standard with a 40 Gbps (gigabits per second) maximum bandwidth. Dense Wavelength Division Multiplexing (DWDM) technology, which enables the simultaneous transmission of several light wavelengths over a single fiber optic cable, is used to accomplish this transmission rate.
The OC levels were utilized in the early stages of fiber optic networks to classify various levels of optical carrier signals. Each of the OC levels, which ranged from OC-1 to OC-768, corresponded to a particular transmission rate. The maximum bandwidth for OC-1 was 51.84 Mbps, whereas the maximum bandwidth for OC-768 was 40 Gbps.
Taking this into account, OC-3 is a lower-level standard with a 155 Mbps maximum bandwidth. It is frequently used in company networks to link branch offices and distant offices to the main office. Additionally, OC-3 is used in MANs, which offer high-speed connectivity within cities between various points.
Use the “ipconfig” command in Windows or the “ifconfig” command in Linux to view the MAC address of a network adapter. These instructions show the MAC address, IP address, and subnet mask of each network adapter that is currently connected to your computer. Each network adapter is given a specific identification number by the manufacturer, known as the MAC address.
A 48-bit hexadecimal address that is used as a MAC address is legitimate. It has six hexadecimal digit pairs that are separated by colons or hyphens. 00:1A:2B:3C:4D:5E or 00-1A-2B-3C-4D-5E, for instance, are both acceptable MAC addresses.
Media access control and addressing are the two key responsibilities of the MAC sublayer in the OSI model. Assigning a distinct MAC address to each network adapter is done through addressing, whereas media access control controls how data is transferred across the physical layer. To avoid data loss due to network congestion, the MAC sublayer also provides error detection and correction as well as flow management.
The highest OC level, OC-768, delivers a maximum bandwidth of 40 Gbps and is the conclusion. In business and LAN networks, OC-3, a lower-level standard with a maximum bandwidth of 155 Mbps, is frequently utilized. You can use the “ipconfig” or “ifconfig” command to view the MAC address of a network adapter. A valid MAC address is a 48-bit address written in hexadecimal format. According to the OSI model, the MAC sublayer is in charge of media access control, addressing, error detection and repair, and flow management.
Since OC-768 is an optical networking technology and 802.11n is a wireless networking standard, the question has nothing to do with the article’s subject. To address the query, 802.11n supports up to four spatial streams, each of which has a 150 Mbps data transmission limit. The frequency band being used and the channel width determine how many channels there are. Typically, the 2.4 GHz band has 11 channels with a 20 MHz width per channel, whereas the 5 GHz band has up to 24 channels with a 20 MHz width per channel, or fewer channels with wider widths.