Packet Filtering

Each packet can be optionally compared against a number of pre-defined filtering rules. A rule can be defined to trigger on most any L2, L3 or L4 header field(s). The most common fields for filtering rules are IP address (source and/or destination), TCP/UDP port (or a range), protocol, VLAN id and MPLS tag. Rules can be defined so that they trigger on both sides of a bi-directional UDP or TCP session.

Once a packet filter matches, actions such as; drop, U-turn (local retransmit) or steer traffic to a specific host packet buffer can be applied to guide a packet along a desired path.

Deduplication

Most network monitoring appliances receive a significant number of duplicate packets; sometimes as high as 50% of all traffic. This is often because a SPAN port is configured to copy ingress and egress data from every switch port, which leads to duplicate packets for every packet that goes into and then out of a network switch. ANIC adapters can discard all duplicate packets in hardware before they ever reach the host application, thus saving a tremendous number of wasted processing cycles.


About Accolade
Accolade is the technology leader in FPGA-based host cpu offload and 100% packet capture PCIe NIC's and scalable 1U platforms. Accolade’s line of 1-100GE products enable 100% packet capture, flow classification, deduplication, packet filtering and more. Our customers are global leaders in network monitoring & cybersecurity applications as well as in the network test and measurement, telecom and video stream monitoring markets.

FPGA Acceleration Features
100% Packet Capture | Flow Classification | Precise Time Stamping | Packet Merging | Packet Slicing | Packet Parsing | Packet Filtering | Deduplication | Host Packet Buffer | Packet Steering | Direct Memory Access (DMA) | Statistics (RMON1)

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Let Accolade show you how to substantially cut your time-to-market. Our 60 day free product evaluation allows you to test and evaluate our comprehensive host cpu offload feature sets and seamless API. Contact Us.

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