Ericsson MX8400, Справочное руководство

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Redundancy Modes
E.2.3 Monitoring and Switching
E.2.3.1 Monitoring
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PLR monitors for missing multicasts only
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Both primary and secondary networks are continuously monitored
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Multicast present status is known for both primary and secondary networks
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For all input multicasts in the active profile, IGMP joins are performed on both
the primary and secondary networks.
E.2.3.2 Automatic Switching
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If a multicast of a transport stream is missing from the primary network and it is
available on the secondary network, an automatic PLR is performed
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If the current network fails, the MX8400 will switch all multicasts to the
secondary network
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By default, the program will remain on the secondary network connection after a
switch
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PLR auto-revert can be enabled using Static Parameters. This allows the
program to switch back to the primary network when the multicast returns
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The auto-revert time set in the Static Parameters are applied
E.2.3.3 Manual Switching
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The user can manually receive incoming multicast/s from a chosen network
using nCC
•
Manual selection of an input network takes precedence over the PLR input
network selection for a multicast
Note: PLR will switch back to the original input if a multicast is missing from the
manually-selected input network.
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