Tunnel visibility for network monitoring
Napatech
Network adapters
Napatech has announced features that provide visibility into tunnels for network monitoring and analysis of value-added services running over IP, such as VOIP, VPN and mobile data.
Napatech's network adapters intelligently distribute 10Gbps flows in real-time to up to 32 CPU cores based on Ethernet, IP, MPLS, layer 4 and GTP, GRE and SCTP tunnel information.
The company is said to be the first network-adapter vendor to provide visibility into these tunnels for network monitoring and analysis purposes.
This combined with the ability to intelligently distribute 10Gbps flows to up to 32 CPU cores in real time makes it possible to fully monitor and analyse VOIP, VPNs and Mobile Data Networks.
The adapter recognises layer two through four protocols including SCTP, GTP and GRE tunnelling protocols, as well as a number of encapsulation methods, such as VLANs, multiple MPLS labels and Cisco ISL.
Napatech network adapters can also compute 17 different types of hash keys, which can be dynamically selected based on the recognised protocol information.
Using the computed hash key or an equal distribution method, flows can be distributed across 32 CPU cores, allowing parallel processing.
This allows the application to fully utilise available CPU cores.
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