HPE OfficeConnect 1920S 48G 4SFP – JL382A

48 port 10/100/1000 Mbps + 4 slot SFP.
Ports : 48 autosensing 10/100/1000 ports; 4 Gigabit SFP ports.
ARM Cortex-A9 @ 400 MHz, 256 MB SDRAM, 64 MB flash; packet buffer: 1.5 MB
Performance : 100 Mb Latency < 7 µs; 1000 Mb Latency < 2 µs; Throughput up to 77.3 Mpps (64-byte packets); Routing/Switching capacity 104 Gbps; Routing table size 32 entries; MAC address table size 16000
Support : Quality of Service (QoS); Management; Connectivity; Layer 2 switching; Security; Convergence; Resiliency and high availability.
Layer 3 services : Address Resolution Protocol (ARP): determines the MAC address of another IP host in the same subnet; supports static ARPs; gratuitous ARP allows detection of duplicate IP addresses; proxy ARP allows normal ARP operation between subnets or when subnets are separated by a Layer 2 network; DHCP relay: simplifies management of DHCP addresses in networks with multiple subnets.