Harmonic ProView 2900 Installation Manual page 119

Chapter 6: Receiver Configuration Modules
Redundancy
6.3.2.2.
The ProView 2900 IP front end supports both physical link and logical source redundancy.
The physical link and logical source are coupled, i.e. switching from one physical link to the
other (in the case of a link redundancy event) forces switching from the corresponding logical
source to the other. In the case of a logical source redundancy event, the physical links are
switched as well.
Link Redundancy: protects the directly connected switch/router and the physical cable
•
connection. There are two IP physical links to the ProView 2900: MPEGoIP IN1 and
.MPEGoIP IN2.
Source Redundancy: protects the transport stream source (encoder/streamer). Two
•
logical sources (i.e. sockets), containing identical streams, must be configured to enable
Source redundancy.
Redundancy Event
6.3.2.3.
A redundancy event causes the ProView 2900 to switch from the active Physical Link and
Logical Source to the passive ones.
The device identifies a redundancy event when all the following conditions apply:
Redundancy mode is enabled
•
Active physical link failure (through PHY indication) or active logical source failure
•
detection (no stream is being received for a preconfigured Redundancy Delay time [see
next page)
Passive physical link is configured, up, and connected
•
Passive logical source is configured and connected
•
The following menu is used for enabling or disabling the operation of the redundancy feature.
1 1 1 1
2 2 2 2
The available options are:
ENABLE – enables redundancy; when a redundancy event occurs the physical link and
•
logical source switch to passive ones
DISABLE - disables redundancy
•
Redundancy Delay
6.3.2.4.
The Redundancy delay menu is used for setting the time delay, which defines a redundancy
event.
005 [Sec] 005 [Sec] 005 [Sec] 005 [Sec]
<000 - - - - 255> <000
<000 <000
Redundancy delay values range from 0 to 255 seconds.
© Harmonic Inc. Manual p/n 101543/Ver 1.0
Redundancy Redundancy Redundancy Redundancy
ENABLE ENABLE ENABLE ENABLE
DISABLE DISABLE
DISABLE DISABLE
Redundancy Delay Redundancy Delay Redundancy Delay Redundancy Delay
255>
255> 255>
6-34 ProView 2900 Series/SW Version 1.94
IP Receiver Configuration