Introduction to the MMS protocol

Functions and principles of MMS:
MMS is Microsoft's proprietary streaming media protocol. It transmits multimedia broadcasts, videos, audio tracks, live broadcasts, and a series of real-time or live materials over the network.
Viewers using this protocol can watch TV images or audio tracks on their computers. The MMS protocol sends data from the server to the user in the form of packets and data blocks to your computer.
Media files on the server exist in the form of ASF or WMA. Live streams are assembled into data packets through streaming media servers. For TV/video, a package may consist of multiple streams,
However, Voice broadcast only has one stream. It can be considered that multiple streams are mixed into an actual package. The stream sent in the package depends on the media type.

Functions and principles of msbd:
It is used to distribute streams between components of the Windows Media Server and transmit streams between servers. It is the protocol for various connections and is the best for streaming media.
Msbd is useful for testing client, server connection, and. ASF content quality.

Functions and principles of http:
You can configure the Windows Media Server to use the HTTP protocol to convert content to a stream. Using HTTP streams can help overcome firewall barriers because most firewall streams allow http to pass.
The HTTP stream can be used by the Windows Media Encoder to connect to the Windows Media Server isolated by the firewall through the firewall Windows Media Server.

 

Port 1755: port 1755 is used by default for Microsoft Media Server (MMS ).

Port Description: port 1755 is used by default for "Microsoft Media Server" (Microsoft Media Server (MMS). This protocol is a Streaming Media Protocol published by Microsoft, the MMS protocol can be used to transfer and play streaming media files on Windows Media Servers over the Internet. These files include. ASF and. WMV files. You can use media playing software such as Windows Media Player for real-time playback. Specifically, port 1755 can be divided into TCP and udp mms protocols, namely, mmst and mmsu. Generally, the MMS protocol of TCP is used, that is, mmst. Currently, most streaming media and common download software support the MMS protocol.

MMS (Microsoft Media Server Protocol) protocol Overview:
A protocol used to access and stream receive. ASF files on the Windows Media Server. The MMS protocol is used to access unicast content on Windows Media publishing points. MMS is the default method for connecting to the Windows Media Unicast service. If the audience type a URL in Windows Media Player to connect to the content, rather than accessing the content through a hyperlink, they must reference the stream using the MMS protocol.

When you connect to a publishing point using the MMS protocol, use protocol flip to obtain the optimal connection. Protocol flip begins with an attempt to connect to the client through mmsu. Mmst is a combination of MMS protocol and UDP data transmission. If the mmsu connection fails, the server tries to use mmst. Mmst is a combination of MMS protocol and TCP data transmission.
If you want to connect to the indexed. ASF file and want to fast forward, backward, pause, start, and stop the stream, you must use MMs. You cannot use the UNC path to fast forward or backward.

If you connect to a publishing point from an independent Windows Media Player, you must specify the URL of the unicast content. If the content is published on demand at the main publishing point, the URL consists of the server name and. ASF file name. For example:
MMS: // windows_media_server/sample. ASF
Here, windows_media_server is the name of the Windows Media Server, and sample. ASF is the file name of the. ASF file you want to convert it into a stream.

If you want to publish real-time content through broadcast unicast, the URL consists of the server name and the alias of the publishing point. For example:
MMS: // windows_media_server/liveevents
Here, windows_media_server is the name of the Windows Media Server, while liveevents is the name of the release.
RTSP
Real-time stream protocol RTSP is jointly proposed by RealNetworks and Netscape, which defines one-to-many applications.ProgramHow to effectively transmit multimedia data over an IP network. RTSP is located on RTP and RTCP in the architecture. It uses TCP or RTP for data transmission. Compared with RTSP, HTTP transmits HTML, while RTP transmits multimedia data. HTTP requests are sent by the client and the server responds. When RTSP is used, both the client and server can send requests, that is, RTSP can be bidirectional.