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2. Maximum transmission unit - Wikipedia

   en.wikipedia.org/wiki/Maximum_transmission_unit

   Maximum transmission unit. In computer networking, the maximum transmission unit ( MTU) is the size of the largest protocol data unit (PDU) that can be communicated in a single network layer transaction. [ 1] The MTU relates to, but is not identical to the maximum frame size that can be transported on the data link layer, e.g., Ethernet frame .

3. Ethernet frame - Wikipedia

   en.wikipedia.org/wiki/Ethernet_frame

   It is immediately followed by the Ethernet frame, which starts with the destination MAC address. [ 1] In computer networking, an Ethernet frame is a data link layer protocol data unit and uses the underlying Ethernet physical layer transport mechanisms. In other words, a data unit on an Ethernet link transports an Ethernet frame as its payload.

4. Frame (networking) - Wikipedia

   en.wikipedia.org/wiki/Frame_(networking)

   A frame is a series of bits generally composed of frame synchronization bits, the packet payload, and a frame check sequence. Examples are Ethernet frames, Point-to-Point Protocol (PPP) frames, Fibre Channel frames, and V.42 modem frames. Often, frames of several different sizes are nested inside each other.

5. Jumbo frame - Wikipedia

   en.wikipedia.org/wiki/Jumbo_frame

   Jumbo frames for PPPoE is defined in RFC 4638, with the purpose of removing the old 1492-byte limit (originally defined because PPP needs 8 more bytes of overhead), so that normal 1500-byte Ethernet can run without fragmentation. The "PPP-Max-Payload" tag can still accommodate much larger, non-baby jumbo frames.

6. Aspect ratio (image) - Wikipedia

   en.wikipedia.org/wiki/Aspect_ratio_(image)

   Aspect ratio (image) The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography .

7. 802.11 frame types - Wikipedia

   en.wikipedia.org/wiki/802.11_Frame_Types

   802.11 frame types. In the IEEE 802.11 wireless LAN protocols (such as Wi-Fi ), a MAC frame is constructed of common fields (which are present in all types of frames) and specific fields (present in certain cases, depending on the type and subtype specified in the first octet of the frame). The very first two octets transmitted by a station are ...