Exfo VDSL2 Manual de usuario descargar pdf (Pagina 62)

IPTV Analysis

56 AXS-200/630

Reading Results

³ IGMP ZAPTime is the time required for a channel change when traffic

is being transferred between the central network and STB.

³ PCR Jitter is the short-term variation in the arrival of program clock

reference (PCR) information at the video decoder.

³ MDI:DF is the media delivery index (MDI) delay factor (DF) which

monitors the amount of time the video must be delayed in the virtual

buffer due to cumulative IP packet jitter and IP packetization.

³ MDI:MLR is the media delivery index (MDI) media loss rate (MLR),

which monitors the amount of media packet loss experienced per

second.

³ Details button shortcuts to the applicable tab which provides more

information about a particular test result.

To view more information about each available test result:

1. Press the up/down arrows to highlight the Details button alongside the

desired test result.

2. Press to select the desired Details button.

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Exfo VDSL2 Manual de usuario Pagina 62