These patches are now available from the Netmap software repository on GitHub, and we're hoping to release further software and patches in the future covering other IP broadcasting requirements. Through the development of a patched driver for Netmap we were able to send and receive data rates exceeding 80Gb/s using a single thread.Īs our work moves on to other challenges and opportunities afforded by IP production we wanted to make the results of our efforts available to the wider community, enhancing Netmap's capabilities to operate with a greater range of manufacturers' network cards, and allowing implementers a straightforward path to implement high data rate networking in software without being locked to a single hardware vendor. With very few 25 and 100Gb/s network cards available at the time we opted to prototype with the Mellanox ConnectX-4 range. nmap -sL 192.168.56.0/24 Nmap Scan Network for Live Hosts Sadly, this initial scan didn’t return any live hosts. This scan is known as a ‘ Simple List ’ scan hence the -sL arguments passed to the nmap command. With the advent of 25 and 100Gb/s networking we wanted to see what performance we could achieve on those cards too. A quick nmap scan can help to determine what is live on a particular network. They used the Mellanox ConnectX‑4 networking card as a starting point but hope by pushing back upstream the patches will help others 'allowing implementers a straightforward path to implement high data rate networking in software without being locked to a single hardware vendor'īack in 2015 we discussed our use of the open source project Netmap on 25 and 100Gb/s IP networksĪt the time we started this work we used 10Gb/s NICs which Netmap already had good support for, however given our desire to work with multiple HD or UHD streams we rapidly outgrew the capacity of a single 10Gb/s link. In short yes, the problem was 100Gb/s networking wasn't really a thing back in 2015 so Netmap wasn't capable out of the box so they had to pioneer a solution. Are they trying to say they hacked the existing driver to achieve higher throughput, and now they are pushing these changes upstream?
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