UsNIC

{{Multiple issues|

{{Third-party|date=November 2017}}

{{Too technical|date=November 2017}}

{{Orphan|date=March 2017}}}}

usNIC (user-space NIC) is Cisco's low-latency computer networking product for MPI over 10 Gigabit Ethernet in high-performance computing. It operates at the OSI model's data link layer (Ethernet frames) or the network layer (UDP packets){{cite web|url=http://blogs.cisco.com/performance/hpc-in-l3|title=HPC in L3|website=blogs@Cisco - Cisco Blogs|date=10 March 2014|accessdate=12 November 2017}}{{cite web|url=http://blogs.cisco.com/performance/hpc-over-udp|title=HPC over UDP|website=blogs@Cisco - Cisco Blogs|date=12 September 2014|accessdate=12 November 2017}} to eliminate the overhead of TCP within a data center. usNIC is shipped as firmware (with associated device drivers) for Cisco's "VIC" (virtual interface card) series of network adapters, and support has been contributed to Open MPI.{{cite web|url=http://blogs.cisco.com/performance/ultra-low-latency-ethernet-questions-and-answers|title=Ultra low latency Ethernet (UCS "usNIC"): questions and answers|website=blogs@Cisco - Cisco Blogs|date=17 July 2013|accessdate=12 November 2017}}{{cite web|url=http://blogs.cisco.com/performance/libfabric-support-of-usnic-in-open-mpi|title=libfabric support of usNIC in Open MPI|website=blogs@Cisco - Cisco Blogs|date=17 November 2014|accessdate=12 November 2017}}