Juniper MEDIA FLOW CONTROLLER 2.0.4 -, Administrator'S Manual

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Media Flow Controller CLI Commands Media Flow Controller Administrator’s Guide
378 virtual-player type smoothflow Copyright © 2010, Juniper Networks, Inc.
AFR is disabled (no delivery rate is assured). See “Using Network Connection Assured
Flow” on page 72 for example.
•
auto
—Not supported in Release 2.0.4.
•
query-string-parm
—Specify a string; referenced value must be in kilobytes.
•
rate
—Define a static value, in kbps. A value of 0 (zero) means no throughput at all.
•
connection max-bandwidth
—Set the maximum bandwidth for a session. The actual
session bandwidth is between the AFR (Assured Flow Rate) and this value. Even if there
is available bandwidth in the link, Media Flow Controller does not allocate more than this
value for a session. When it is a full download, Media Flow Controller tries to allocate the
max-bandwidth to the session. Default is 0 (unbounded) with the Media Flow Controller
license, 200 kbps without it; you must have the license to change the unlicensed default.
Use no connection to reset default.
•
health-probe
—Configure an external server to do health checks by making Media Flow
Controller fetch data from origin and play it to the server initiating the health check. The
signal that a given HTTP request is for a health probe is the configured health-probe
query-string-parm <string>; if that value matches the following match <string> value,
the GET request is treated as a health probe. When servicing health probes Media Flow
Controller does not cache the data into disk or buffer. Use no health-probe to disable.
•
req-auth
—Compute MD-5 hash of query string parameters representing stream-id
(default is streamid), auth-id (default is authid), a configured shared-secret (default is
ysecret), and time-interval (default is 15 seconds); and match the computed value with
the specified match query-string-parm <string> (default is ticket). All arguments must
be configured. The session proceeds if the computed MD-5 hash matches; if there is no
match, the session is rejected. In prefix mode, use no req-auth to disable.
•
seek
—Specify a string to implement FLV seek (allows the client player to seek to a
specific location of the URL). In prefix mode, use no seek to disable. Optionally:
•
seek-length query-string-parm
—Specify a string to signal the number of bytes
of data to send from the seek start position; referenced value must be in bytes.
•
enable-tunnel
—If set, all seek requests to the origin server are tunneled; typically
this option needs to be selected only when the origin site changes their seek
mechanism. Default is disabled.
virtual-player type smoothflow
Use type smoothflow (formerly type 4) virtual players to enable Adaptive Bit Rate delivery of
video to Adobe Flash players; set only those parameters you need. Use no virtual-player
<name> to delete. See
“Creating and Configuring Virtual Players (CLI)” on page 74 for
implementation details.
Note! Video content must be prepared in a manner described in Chapter 8, “SmoothFlow
Deployment to enable delivery using this player.
virtual-player <name> type smoothflow
connection max-bandwidth <kbps>
control-point <string>
signals session-id query-string-parm <string> state query-string-parm
<string> profile query-string-parm <string>
hash-verify digest <digest_type> shared-secret <string>{append | prefix}