Endace DAG technology has been around since the 1990s and is the “gold standard” for packet capture. Using FPGA technology, DAG cards can take traffic off the wire and put it in memory with almost zero CPU usage, delivering an accurate stream of packets to an application and leaving the CPU cycles for that application, significantly enhancing the abilities of any network security or network analysis tool.
A simple set of drivers, APIs and software tools come with each DAG card, making it easy for organisations to take advantage of the features of the cards, which include filtering and de-tunnelling of GTP or other protocols. Endace DAG cards are available for Ethernet from 10Mbps to 40Mbps and for ATM/STM/SDH technologies from 155Mbps (STM-1/OC-3) to 10Gbps (STM-64/OC-192).
DAG cards also provide very accurate timestamps with resolution to 4ns and global synchronisation to 200ns, so tracing the path of a packet across a global network can be done with great accuracy.