telecommunications, a protocol data unit (PDU) is a single unit of information transmitted among peer entities of a computer network. It is composed of protocol-specific...
8 KB (1,155 words) - 14:57, 2 October 2024
The Transaction Protocol Data Unit (TPDU) is a packet-based protocol originally designed for financial transaction processing over an X.25 network. TPDU...
674 bytes (42 words) - 19:27, 17 February 2022
constantly communicate with their neighbors in the LAN using § Bridge protocol data units (BPDUs).: 388 Provided there is more than one link between two switches...
49 KB (6,138 words) - 18:09, 26 December 2024
The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers...
16 KB (2,170 words) - 18:27, 28 November 2024
In the context of smart cards, an application protocol data unit (APDU) is the communication unit between a smart card reader and a smart card. The structure...
3 KB (173 words) - 00:35, 7 November 2024
layer. This unit of data (SDU) has not yet been encapsulated into a protocol data unit (PDU) by the lower layer. That SDU is then encapsulated into the lower...
3 KB (420 words) - 16:12, 27 September 2023
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...
17 KB (2,373 words) - 06:43, 1 January 2025
Network packet (redirect from Data packet)
packet is a formatted unit of data carried by a packet-switched network. A packet consists of control information and user data; the latter is also known...
9 KB (1,176 words) - 13:31, 9 November 2024
Modbus (redirect from West ascii protocol)
Modbus or MODBUS is a client/server data communications protocol in the application layer. It was originally designed for use with programmable logic controllers...
38 KB (4,534 words) - 00:29, 20 December 2024
OSI model (redirect from OSI protocol suite)
allows transparent communication through equivalent exchange of protocol data units (PDUs) between two parties, through what is known as peer-to-peer...
54 KB (5,646 words) - 06:58, 14 December 2024
notifications are sent to port 10162. SNMPv1 specifies five core protocol data units (PDUs). Two other PDUs, GetBulkRequest and InformRequest were added...
40 KB (5,028 words) - 15:08, 17 November 2024
Ethernet frame (redirect from End of data)
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...
26 KB (3,289 words) - 17:02, 21 November 2024
Profibus (section Data link layer (OSI-Layer 2))
considerably faster protocol PROFIBUS DP (Decentralised Peripherals) was completed. Profibus FMS is used for (non-deterministic) communication of data between Profibus...
19 KB (1,709 words) - 17:19, 5 July 2024
aggregation: MAC service data unit (MSDU) aggregation and MAC protocol data unit (MPDU) aggregation. Both types group several data frames into one large...
5 KB (632 words) - 03:38, 31 July 2024
Encapsulation (networking) (redirect from Upper layer protocol)
computer-networking process for receiving information; it removes from the protocol data unit (PDU) a previously concatenated header or tailer that an underlying...
6 KB (564 words) - 21:19, 20 November 2024
CRLF, but including the upper-layer protocol headers. Each $ block contains exactly one upper-layer protocol data unit, e.g., one RTP packet. C->S: SETUP...
23 KB (2,915 words) - 12:26, 14 December 2024
Service Data Unit (MSDU)". Access Agility. Retrieved 2024-03-12. 802.11 Wireless LAN IEEE standard Protocol Data Unit (PDU) / Service Data Unit (SDU) v...
1 KB (119 words) - 17:22, 4 September 2024
CCMP (cryptography) (redirect from Counter Mode CBC-MAC Protocol)
Control Protocol Data Unit (MPDU) comprises five sections. The first is the MAC header which contains the destination and source address of the data packet...
5 KB (594 words) - 05:39, 11 December 2024
(VLAN) throughout a bridged local area network. MSTP uses bridge protocol data unit (BPDUs) to exchange information between spanning-tree compatible devices...
27 KB (3,592 words) - 19:39, 27 August 2024
Payload (computing) (redirect from Payload data)
or avoiding detection. Protocol data unit – Unit of information transmitted over a computer network Service data unit – Data passed down to a lower layer...
3 KB (323 words) - 23:23, 11 April 2024
Network Computing BOM—Byte Order Mark BOOTP—Bootstrap Protocol BPDU—Bridge Protocol Data Unit BPEL—Business Process Execution Language BPL—Broadband...
92 KB (6,586 words) - 20:30, 4 January 2025
Frame Relay (category Network protocols)
Each Frame Relay protocol data unit (PDU) consists of the following fields: Flag Field. The flag is used to perform high-level data link synchronization...
22 KB (2,970 words) - 22:03, 27 April 2024
defined a standard for transmission of the Internet Protocol (which would be the protocol data unit in this case) over FDDI. It was first proposed in June...
10 KB (1,201 words) - 18:49, 19 November 2024
of the protocol. Bitstrings longer than the maximum transmission unit (MTU) are divided in pieces of appropriate size. Address formats for data exchange...
65 KB (8,221 words) - 14:26, 31 December 2024
IP fragmentation (category Internet Protocol)
fragmentation attack Protocol data unit and Service data unit Segmentation and reassembly – Arranging data into cells in an ATM network Internet Protocol, Information...
7 KB (803 words) - 08:36, 25 April 2024
Frame (networking) (redirect from Data Frame)
a frame is the protocol data unit at the data link layer. Frames are the result of the final layer of encapsulation before the data is transmitted over...
4 KB (585 words) - 22:44, 4 September 2024
In computer networking, Point-to-Point Protocol (PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host...
21 KB (2,280 words) - 14:30, 16 September 2024
Distributed Interactive Simulation (category Application layer protocols)
formatted messages, known as protocol data units (PDUs) and exchanged between hosts using existing transport layer protocols, including multicast, though...
9 KB (953 words) - 03:27, 31 July 2024
data unit (SDU); typically a packet) from one layer of a network into multiple smaller payloads that can fit within the lower layer's protocol data unit...
20 KB (2,599 words) - 12:12, 8 November 2024
refers to the TCP protocol data unit (PDU), datagram to the IP PDU, and frame to the data link layer PDU: Processes transmit data by calling on the TCP...
109 KB (12,957 words) - 17:34, 19 December 2024