QoS Problems and Solutions of IP Network
Li Bin · ZTE communications · 2008
Quality of Service (QoS) technology is the key for IP network technology to be the future general bearer network technology. According to the duration of congestion, network QoS risk can be divided into five levels as microsecond class, milliseconds class, second class, minute class, and longer time class. Scheduling mechanism, caching and queue mechanism, call admission control, traffic engineering, and other technologies are all effective means to solve one class of QoS risk. IP network operators need to make total QoS solution analyzing the major risks in their networks, and achieve a balance between four network performances, including call drop rate, delay, jitter, and packet loss.