VBrick dme, Руководство администратора

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DME Admin Guide 169
Chapter 14
Monitor and Logs
MPS Connections
The DME has several different servers that cooperate to distribute various forms of video
content. This page reports on the MultiProtocol Server (MPS) streaming types. This includes
all RTP/RTSP, RTMP/RTMFP, Vbrick Multicast (VBM), and Stream Conversion streams. In
other words, most all streams that are pushed or pulled to/from the DME are reported
within this page.
The primary use cases for the
Monitor and Logs > MPS Connections
page revolve around the
use of the MPS table, and they are:
1.
Verifying the existence of a stream . This is probably the most used feature of this
page. The DME can be configured to pull various streams from remote locations, push
various streams to remote locations, and accept streams from various sources. This page
provides an entry in the table identifying each of the existing streams within the DME. If
the stream is not listed, then the stream is currently not in the DME.
2. Get playback URLs and test streams from the DME . For each stream identified
within the MPS table, a number of “URLs to Copy” are provided. Hovering over these
will display the URL. These are designed so that a right-mouse click will allow you to
“Save like as...” and copy the link to your clipboard. This is highly useful so that you can
paste that URL into the player of your choice and verify the playback of the stream. We
recommend that you paste these links into Rev (on the
Upload > Add URLs
menu item)
and view them with the Rev layer as your viewers would do. You can also paste these
URLs into VLC or other players.
•
HLS Streams . These URLs can be added and played directly from Rev – our
recommended approach. The Safari browser has native HLS playback support,
while others do not (and will only download the m3u8 playlist).
• RTMP/RTMFP . Flash streams, either unicast or multicast, require the flash plugin.
While browsers are moving away from this technology, there are still use cases that
require it. Note: Using RTMP to push streams from DME to DME is still common
because of latency issues—this should not be confused with the RTMP playback
within the browser which is diminishing. Copying the URL into browsers that
support these protocols will playback accordingly.
• RTSP/RTP . Like RTMP, RSTP/RTP is a protocol more often used for distributing
video through a network. Playback of these protocols requires specialized players –
and we recommend using VLC for testing.
Note: HLS, HDS are not served to viewers via the MPS. They are http based
protocols, so they are served via the DME’s caching system. You will see HLS/HDS
stream within the MPS Monitor Page if they are generated within the DME.
However, you will not see all the viewer connections to the live HLS/HDS, nor
connects for VOD HLS/HDS/Progressive Download.