The SDM provides the ability to capture information about traffic on the Ethernet network. This feature provides headend personnel with the ability to:
- troubleshoot individual devices
- collect traffic information on key performance metrics for analysis and optimization of the system
- suggest new performance metrics not currently supported by device MIBs
The data is presented in the form of a poll report. Raw data is also available in PCAP (packet capture) format for use by applications external to the SDM. Filtering parameters, based on packet criteria, can be applied, and filtered PCAP files can be created.
Raw and filtered PCAP files are located on the SDM server in the directory /opt/AdventNet/WebNMS/sdm/ethX, where X represents the Ethernet interface configured on the SDM (for example, eth0, eth1, eth2, etc.). Note that the 24-hour clock is used in the timestamps; for example, 2:15 PM is displayed as 1415.
Raw PCAP files follow this naming convention:
raw_<sequence id>_<timestamp>.pcap
For example, a raw PCAP file for sequence 44, captured at 2:15:00 PM on February 28, 2011, would have the name:
raw_44_20110228141500Filtered PCAP files follow this naming convention:
filter_<sequence id>_<timestamp>.pcap
For example, a filtered PCAP file for sequence 44, captured at 2:15:00PM on February 28, 2011, would have the name:
filter_44_20110228141500