Arris, Teleste, and Casa Systems were flaunting DOCSIS 3.1 capable products at this week’s Anga Com tradeshow in Cologne. All three companies have the difficult task of competing with the might of Cisco for contracts, which itself won a deal this week to use its CCAP (Converged Cable Access Platform) tech in a DOCSIS 3.1 field trial with Altice and SFR in France. CCAP is the combination of the network server which drives QAM TV with the CMTS (Cable Modem Termination System) which in turn drives DOCSIS connections. The technology is being used to upgrade existing cable systems to provide subscribers with ultra-fast broadband speeds to keep up with increasing demand for content in formats such as 4K, UHD and…