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The use of the SMB protocol has often correlated with a significant increase in broadcast traffic on a network. However the SMB itself does not use broadcasts—the broadcast problems commonly associated with SMB actually originate with the NetBIOS service location protocol.
SMB Server Message Block; SMPP Short Message Peer-to-Peer; SOCKS "SOCKetS" ZIP Zone Information Protocol {For AppleTalk} This layer provides session management capabilities between hosts. For example, if some host needs a password verification for access and if credentials are provided then for that session password verification does not happen ...
The list below explicitly refers to "SMB" as including an SMB client or an SMB server, plus the various protocols that extend SMB, such as the Network Neighborhood suite of protocols and the NT Domains suite. Microsoft Windows includes an SMB client and server in all members of the Windows NT family and in Windows 95, Windows 98, and Windows Me.
The (TCP) and the (UDP) only need one for , bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses, [ 1 ] However, many ...
(Note: SMB, an upper layer, is a service that runs on top of the Session Service and the Datagram service, and is not to be confused as a necessary and integral part of NetBIOS itself. It can now run atop TCP with a small adaptation layer that adds a length field to each SMB message; this is necessary because TCP only provides a byte-stream ...
XMPP has experimentally been adapted to use QUIC. [38] Another application is SMB over QUIC, which, according to Microsoft, can offer an "SMB VPN" without affecting the user experience. [39] SMB clients use TCP by default and will attempt QUIC if the TCP attempt fails or if intentionally requiring QUIC.
They use one of two transport layer protocols: the Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP). In the tables below, the "Transport" column indicates which protocol(s) the transfer protocol uses at the transport layer. Some protocols designed to transmit data over UDP also use a TCP port for oversight.
It has a number of changes to improve performance and add additional capabilities. Windows Vista and later operating systems use SMB 2.0 when communicating with other machines running Windows Vista or later. SMB 1.0 continues in use for connections to any previous version of Windows, or to Samba. Samba 3.6 also includes support for SMB 2.0. [21]