Pcr Locking Mechanism And Choice Of Pcr; Ip Status Page - Ericsson RX8000 Reference Manual

The minimum buffer level that should be configured is 20 ms. To determine the
minimum buffer size, use the worst case expected jitter value and add 5 ms.
3.10.5.7

PCR Locking Mechanism and Choice of PCR

The bit rate locking mechanism on the IP Input option card is PCR based. It
processes the MPTS at the Transport Stream layer and searches for an adaptation
field to signify the presence of a header as well as presence of a PCR flag. Should
there be more than one PID carrying PCRs, the card will lock onto the highest PID
value PCR.
For example, should both PCR PID 0x103 and PCR PID 0x1FFE exist in the stream,
the card will lock onto PID 0x1FFE and use its PCR values to determine the bit rate
of the MPTS.
3.10.5.8

IP Status Page

Figure 3.48 IP Input Status
The IP Status page has an Alert status field to summarize the current condition of
the IP Input option card. Possible alerts that may be raised are list below.
Table 3.7
IP Input Status Alerts
No response
Link down on port 1
ARP unresolved on port 1
Out of sync
Packets discarded
Out of regulation
No data on port 1
EN/LZT 790 0005 R7A
List of Possible IP Input Status Alerts
Using the Equipment
3-81