13-2
User Guide for Cisco Digital Media Player Device Manager 5.2.x
OL-15764-03
Chapter 13 Browser Settings (‘TVzilla’)
Concepts
Understand Content Substitution (‘Failover’)
Your DMP can continue to operate and show media despite occasional network outages or other
technical disruptions. To accomplish this, you must tell your DMP ahead of time which assets it should
play when it cannot load its correct assets. We call this content substitution behavior “failover.”
You can edit values that affect DMP behaviors during failover.
These are the editable values in DMPDM 5.2.0 to 5.2.2:
• Failover URL
• Failover Timeout (in milliseconds)
• Maximum Number of Failover Attempts
• Recovery URL
• Recovery Timeout (in milliseconds)
These are the editable values in DMPDM 5.2.3:
•
Enable Failover
• Failover URL
• Failover Timeout (in milliseconds)
Your DMP has multiple stages for failover.
• Stage 1: Sequence of Operations, page 13-2
• Stage 2: Sequence of Operations, page 13-3
• Stage 3: Sequence of Operations, page 13-4
Note In DMPDM 5.2.3, stages 1 and 2 are combined for simplicity.
Stage 1: Sequence of Operations
When an HTTP status code of 404 or 500 prevents your DMP from obtaining the content that you
scheduled it to play, your DMP enters stage 1 failover. Stage 1 operations for failover occur in a
p
redictable sequence.
When any operation fails during stage 1 failover, your DMP enters stage 2.
In DMPDM 5.2.0 to 5.2.2: In DMPDM 5.2.3:
1. Your DMP verifies that you entered a URL in
t
he Recovery URL field.
1. Your DMP verifies that you entered a URL in
the Failover URL field.
2. Verifies that the Recovery URL is reachable. 2. Verifies that the Failover URL is reachable.
3. Verifies that the assets at the Recovery URL
are
valid.
3. Verifies that the assets at the Failover URL are
valid.
4. Plays assets from the Recovery URL, instead
of
playing assets that were scheduled
for playback.
4. Plays assets from the Failover URL, instead
of playing assets that were scheduled
for playback.
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