Timestamp

Each packet that enters an ANIC adapter is tagged with a timestamp with up to 4nS (nanosecond) time precision. The ANIC adapter has to be disciplined from a timing source and there are five options as follows listed in order of popularity:

  1. Host OS – The host operating system acts as the time source and can in turn be disciplined by any other source such as PTP, 1PPS, NTP or the like.
  2. GPS/CDMA – ANIC adapter can be directly attached (via a front port) to a 1PPS (One Pulse Per Second) time source such as GPS or CDMA.
  3. PTP or IEEE 1588 – A PTP (Precision Time Protocol) network can be directly attached to an ANIC adapter via a front port.
  4. Another ANIC adapter – One ANIC adapter can be the time source for another by attaching them via the onboard “card-to-card bus”.
  5. Free Running – All timing is handled by the ANIC adapter onboard clock. This is the least precise mechanism but easiest to utilize.

noteAn ANIC adapter can also parse out a Gigamon or Arista generated timestamp and propagate it forward to the host application.


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)

Free Product Evaluation

Resolve all your host CPU offload bottlenecks. Share Your Technical Requirements with our FPGA and software experts to tailor the optimal solution. Accolade offers a 60 day free product evaluation for qualified customers to fully test and evaluate our products.

Visit us at events throughout the year:



Suricon

Prague
Nov. 15 – 17, 2017

Save

Share on LinkedInTweet about this on TwitterShare on Google+Email this to someone