S2500-P Series supports the carrier-level Ethernetring protection protocol with less than 50ms recovery time , STP/RSTP/MSTP , backup uplink ports, and LACP link aggregation to cater to the requirements of high reliability of carriers. S2500-P Series has powerful ACL functions to access and control L2-L7 data based on physical port, providing carriers flexible and various policy control methods

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