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protocol data unit การใช้

ประโยคมือถือ
  • The DTServer provides terrain updates by issuing distributed interactive simulation ( DIS ) protocol data units ( PDUs ).
  • The common architecture specification defines a format of nested protocol data units ( PDUs ), rather similar to UDP / IP.
  • In practice, MPLS is mainly used to forward IP protocol data units ( PDUs ) and Virtual Private LAN Service ( VPLS ) Ethernet traffic.
  • However, TCP does not respect message boundaries; it sends data as a sequence of bytes without regard to protocol data units ( PDU ).
  • All this additional information, plus the original service data unit from the higher layer, constitutes the " protocol data unit " at this layer.
  • Such modification can be applied to the PDU ( Protocol Data Unit ), to the time relations between the exchanged PDUs, or both ( hybrid methods ).
  • A new Protocol Data Unit ( PDU ) definition, the DIS PDU was added to the baseline protocol to support the exchange of DIS PDUs for simulated entities.
  • During encapsulation, each layer builds a protocol data unit ( PDU ) by adding a header ( and sometimes trailer ) containing control information to the PDU from the layer above.
  • The resulting packet is generally referred to as " LLC Protocol Data Unit ( PDU ) " and the additional information added by the LLC sublayer is the " LLC HEADER ".
  • The protocol is based on pairs of request / response PDUs ( protocol data units, or packets ) exchanged over TCP is 2775, but multiple arbitrary port numbers are often used in messaging environments.
  • The data link layer is concerned with local delivery of frames between devices on the same LAN . Data-link frames, as these protocol data units are called, do not cross the boundaries of a local network.
  • In essence, it carries out the role in GPRS equivalent to the home agent in Mobile IP . It maintains routing necessary to tunnel the protocol data units ( PDUs ) to the SGSN that services a particular MS ( mobile station ).
  • The protocol data units ( PDUs ) for the OSI model ( Data, Segment, Packet, Frame, Bit ) can be remembered using the phrases " Do Some People Fear Binary ? " and " Don't Stop Pouring Free Beer ".
  • Application layer protocols such as X . 400 electronic mail, X . 500 and Lightweight Directory Access Protocol ( LDAP ) directory services, H . 323 ( VoIP ), Kerberos, BACnet and simple network management protocol ( SNMP ) use ASN . 1 to describe the protocol data units ( PDU ) they exchange.
  • The term " TCP packet " appears in both informal and formal usage, whereas in more precise terminology " segment " refers to the TCP protocol data unit ( PDU ), " datagram " to the IP PDU, and " frame " to the data link layer PDU:
  • SNAP is usually used with Unnumbered Information 802.2 protocol data units ( PDUs ), with a control field value of 3, and the LSAP values are usually hexadecimal AA, so the 802.2 LLC header for a SNAP packet is usually AA AA 03; however, SNAP can be used with other PDU types as well.
  • The Interworking MSC of the SMSC, on receipt of the MAP mo-ForwardSM message, passes the SMS-PP Application Protocol Data Unit ( APDU ) containing the text message to the actual Service Centre ( SC ) of the SMSC for storing, and subsequent'forwarding'( delivery ) to the destination address and the SC returns an acknowledgement indicating success or failure.
  • Under IPv4, a router that receives a protocol data unit ( PDU ) larger than the next hop's MTU has two options : drop the PDU and send an Internet Control Message Protocol ( ICMP ) message which indicates the condition " Packet too Big ", or fragment the IP packet and send it over the link with a smaller MTU . IPv6 hosts are required to determine the optimal Path MTU before sending packets; however, it is guaranteed that any IPv6 packet smaller than or equal to 1280 bytes must be deliverable.