Chapter 34: Internet Protocol Detail Record
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
961
Note: The exporter does not initiate IPDR connections. Therefore, the collector must initiate IPDR connections to the
exporter.
The exporter only listens on in-band management interfaces for collector connections. The recommended exporter IP
address to configure into each collector is a loopback or RSM ethernet IP address. These addresses remain intact after an
RSM switchover.
In the event of an RSM switchover, the newly active exporter automatically enables itself and awaits for the dropped
collectors to reconnect. Once a collector reconnects to a non-adhoc session, the exporter immediately starts an on-
demand event-triggered records only session interval until the next scheduled session interval arrives.
Simultaneous Sessions
In DOCSIS 3.0 mode, the C4/c CMTS exporter can support up to four simultaneous IPDR sessions over multiple TCP
connections with a collector. For example, a collector can manage four simultaneous sessions over a single TCP connection
or over four TCP connections with each carrying one session.
Inter-Operations
Three areas tend to have a significant effect on the IPDR inter-operations between the exporter and the collector. These
are:
Data Acknowledgment
Keep Alive
Missed Interval
Data Acknowledgment
Data Acknowledgment is when the collector sends a DATA-ACK message to the exporter and reports successful handling of
DATA messages. The collector sends the DATA-ACK message either after a certain time period (not to exceed the Data Ack
Timeout parameter) or after a certain number of messages (not to exceed the Data Ack Window parameter) have been
processed. Both of these parameters are configured at the C4/c CMTS. The parameter defaults should be sufficient for
most configurations.