Cisco Cisco D9824 Advanced Multi Decryption Receiver Installationsanleitung
Chapter 5 Web GUI Setup and Monitoring
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Advanced Settings
Description
Announce User's Title
If User String is selected as the Announce Title Source, enter
the SAP identifier (ID)/string, up to 31 characters.
the SAP identifier (ID)/string, up to 31 characters.
5 Click OK.
Configuring Forw ard Error Correction Settings
Due to its nature (occasionally packet loss, packet reordering, and/or stream jitter) a
traditional IP network is not the perfect channel for transmitting broadcast -quality
compressed video content. Forward Error Correction (FEC) developed by the Pro-
MPEG forum is a unique technology to enhance the robustness of video traffic over
IP networks. The D9824 supports Pro-MPEG FEC Code of Practice (COP) #3 release2
and SMPTE-2022, which is based on the exclusive or (XOR) boolean operator applied
to a number of data packets. When a FEC packet is created by performing the XOR
boolean operation on a number of RTP packets, a missing RTP packet can always be
reconstructed by performing the XOR operation on the FEC packet and the
remaining RTP packets.
traditional IP network is not the perfect channel for transmitting broadcast -quality
compressed video content. Forward Error Correction (FEC) developed by the Pro-
MPEG forum is a unique technology to enhance the robustness of video traffic over
IP networks. The D9824 supports Pro-MPEG FEC Code of Practice (COP) #3 release2
and SMPTE-2022, which is based on the exclusive or (XOR) boolean operator applied
to a number of data packets. When a FEC packet is created by performing the XOR
boolean operation on a number of RTP packets, a missing RTP packet can always be
reconstructed by performing the XOR operation on the FEC packet and the
remaining RTP packets.
FEC = RTP1 XOR RTP2
RTP1 = FEC XOR RTP2
RTP2 = FEC XOR RTP1
1 In the MPEG over IP Output Stream page, select the stream you want to
configure FEC settings.
2 Click FEC. The FEC Settings dialog box is displayed.
3 From the FEC Mode drop-down list, choose an error protection profile.