Search results
Results from the WOW.Com Content Network
By far the most popular FCS algorithm is a cyclic redundancy check (CRC), used in Ethernet and other IEEE 802 protocols with 32 bits, in X.25 with 16 or 32 bits, in HDLC with 16 or 32 bits, in Frame Relay with 16 bits, [3] in Point-to-Point Protocol (PPP) with 16 or 32 bits, and in other data link layer protocols.
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.
Ethernet packet. The SFD (start frame delimiter) marks the end of the packet preamble. 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
Diagram of an ethernet frame. File usage. The following 4 pages use this file: Ethernet frame; Frame check sequence; Jumbo frame; User:Mikm/Gallery; Global file usage.
This frame may cause a collision at the remote end which cannot be detected by the transmitter, so the frame is not resent on the physical layer. Due to interference on the medium, its data is corrupted and frame check sequence fails, requiring recovery at a higher layer, if possible. [citation needed]
The Frame Relay network exists between a LAN border device, usually a router, and the carrier switch. The technology used by the carrier to transport data between the switches is variable and may differ among carriers (i.e., to function, a practical Frame Relay implementation need not rely solely on its own transportation mechanism).
The full-duplex side usually will register frame check sequence errors, or runt frames. [ 7 ] [ 8 ] Viewing these standard Ethernet statistics can help diagnose the problem. Contrary to what one might reasonably expect, both sides of a connection need to be identically configured for proper operation.
EtherType is a two-octet field in an Ethernet frame. It is used to indicate which protocol is encapsulated in the payload of the frame and is used at the receiving end by the data link layer to determine how the payload is processed. The same field is also used to indicate the size of some Ethernet frames.