(The Hosting News) – Napatech, the world’s largest vendor of intelligent adapters for network analysis, today announced the introduction of new functionality to intelligently identify fragmented IP packets. Available on the latest Napatech network adapters, it provides OEM vendors with a powerful off-load tool to increase performance in networks with many fragmented packets.
“Up to 33% of network traffic can be fragmented and this creates an extra workload for network appliance vendors as fragments must be identified and reassembled before data can be analyzed”, stated Henrik Brill Jensen, CEO, Napatech. “By identifying IP fragments and collecting them for reassembly and analysis, Napatech intelligent network adapters can help relieve this work load.”
The IP fragmentation feature is the latest addition to the comprehensive, common feature set provided by Napatech on all 1 Gbps, 10 Gbps and 40 Gbps network adapters. It is the latest addition to an extensive range of intelligent frame processing, flow identification and distribution features that help OEM vendors of network appliances to off-load data processing and focus on data analysis.
“IP reassembly is often the first step required before any IP data analysis can be performed”, added Jensen. “With this feature enhancement, we can help increase performance and enable new features to be implemented as more processing power is freed up for the application”.
IP fragmentation occurs when large frames are split into a number of smaller frames to suit the transmission characteristics of the network. This means that a large IP/TCP/HTTP frame will be split into two frames where the first frame holds the IP, TCP and HTTP network headers together with the first part of the payload data, while the second frame will hold an IP header together with the remaining payload data. This presents a challenge to network analysis appliances as the second frame does not contain any high level protocol headers, which makes it impossible for simple hardware filters and hardware flow distribution solutions to handle the fragment frames in a meaningful way. The Napatech IP fragmentation solution solves this problem by identifying which fragments that belong to the same original IP frames allowing fragmented IP frames to be filtered and flow distributed in the same way as non-fragment IP frames.
For more information please contact Napatech at www.napatech.com.
Visit Napatech at the upcoming Cisco Live event in San Diego from the 11th to the 14th of June or at the Interop Tokyo event from the 13th to the 15th of June.
Napatech is the leading OEM supplier of 40 GbE, 10 GbE and 1 GbE intelligent adapters for real-time network analysis with over 100,000 Ethernet ports deployed. Napatech network adapters provide real-time packet capture and transmission with full line-rate throughput and zero packet loss no matter the packet size. Intelligent features enable off-load of data traffic processing and packet analysis normally performed in the CPU. This results in more processing power for the network monitoring, analysis, management, test, measurement, security or optimization application being supported. Napatech has sales, marketing and R&D offices in Mountain View (CA), Andover (MA), Washington D.C., Tokyo (Japan), Seoul (South Korea) and Copenhagen (Denmark).