Video features in a VPRN service require the creation of a video SAP and a video interface. A video SAP is similar to other SAPs in the system in that QoS and filter policies can be associated with the SAP on ingress (traffic leaving the ISA and ingressing the system) and egress (traffic leaving system and entering the ISA).
The video SAP is associated with a video group. Channels are also associated with a video group which is what establishes the link between what channels can be referenced through the video SAP. The multicast information policy associated with the service is where the channel to video group association is defined.
A single VPRN service can be used to support all video applications. However, It is possible to use 2 different VPRNs for a FCC/RET service; one VPRN is configured with a FCC/RET server to process FCC/RET requests, and a second VPRN is configured to support only the buffering of the multicast video content. In this case, within the FCC/RET server VPRN, the multicast service of the VPRN (service ID) must be specified.
Another parameter defined for a channel in the multicast information policy that is important for video services is the administrative bandwidth defined for the channel. Many video applications use the bandwidth to determine if sufficient ISA egress bandwidth exists to service or drop a service request.
The following output displays an example video interface configuration.
A:IPTV-SR7>config>service>ies# info
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video-interface "video-100" create
video-sap 4
exit
address 10.1.1.254/8
address 192.168.0.254/8
address 192.168.1.254/24
adi
channel 192.168.5.228 source 192.168.9.10 channel-name "228"
scte35-action drop
zone-channel 192.168.5.228 source 192.168.100.1 adi-channel-name
"228-1"
exit
scte30
ad-server 10.200.14.2
local-address control 10.1.1.2 data 10.1.1.3
exit
exit
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A:IPTV-SR7>config>service>ies#