The Accolade ATLAS-1100 Service Node or ASN performs advanced flow management and packet handling functions at 40Gbps for Network Monitoring and Security Tools. Designed to maximize tool performance, the ASN is configurable via a user interface to perform value-added functions including deduplication, flow shunting, header stripping and packet slicing. It is deployed in two different configurations:
1) In augmentation configuration it serves as an adjunct to a packet broker with traffic fed from a packet broker and then sent back (U-turn) after the selected function is performed. With the increased use of commodity Ethernet switches or lower cost packet brokers in networks, the ASN centralizes advanced packet processing functions such as deduplication, header stripping and packet slicing resulting in significant cost savings.
2) With inline configuration the ASN sits in the traffic path and performs functions as traffic is flowing through the network. In this configuration security functions based on deep packet inspection (DPI) are performed “on-the-fly” to prevent unwanted traffic from entering an enterprise environment. In another option traffic enters the ASN via the 40G interface and after DPI or other processing it “fans-out” via the four separate 10G interfaces.