  With the advent of several new Cloud Radio Access Network (C-RAN)
technologies, todays networking environment is dramatically altered and is
experiencing a rapid transformation. One of the most important is Ethernet
based C-RAN, in support of which many products such as optical Ethernet
switches have recently appeared on the market. This paper presents the
performance analysis of such switches with respect to Packet Loss Ratio (PLR),
Latency and Packet Delay Variation (PDV). We employed the Simula based on
Discrete Event Modelling on Simula (DEMOS), a context class for discrete event
simulation to simulate a cut-through optical Ethernet switch under two types of
traffics: High priority (HP) traffic and Low priority (LP) traffic. In this
way, the paper evaluates the optical Ethernet switch performance
quantitatively. The results obtained from the simulator showed that the high
quality of service was reflected on HP traffic and the low quality of service
in LP traffic. Hence, HP traffic can be used for transporting Radio over
Ethernet (RoE) traffic while LP traffic can used for transporting time
insensitive application. It is also found that HP traffic experiences a PDV
equals to the duration of maximum sized LP traffic in Optical Ethernet switch.
