  With the rapid development of network-based services and applications,
current data plane solutions of network node, which focus on packets forwarding
traditionally, are not optimally addressing new requirements such as function
flexibility, performance expansibility and resource utilization, etc. In this
paper, we propose a novel data plane structure called Resource Pooling Switch
Architecture (RPSA), which utilizes global shared resource pool to provide
different processing functionalities and capacities to different packets/flows.
As all network functions are instantiated by the resources connected to the
switching fabric and constructed in the form of Service Function Chains (SFC),
the traffic patterns changed a lot. We design Balanced Service Capacity based
FIRM algorithm (BSC-FIRM) to overcome the deficiencies of classical scheduler
in RPSA. Simulation results show that our algorithm outperforms on the aspect
of packet switching delay and loss rate compared with FIRM and iSLIP algorithm.
