The Hp a5800-24g-poe layer 3 managed switch key features in this device type include: switch - 24 ports - l3 - managed enclosure type: 1u ports: 24 x 10/100/1000 + 4 x sfp+ power over ethernet (poe) : yes mac address table size : 32k entries routing protocol : ospf, bgp-4, is-is, rip-1, rip-2, bgp, igmpv2, igmp, vrrp, ospfv2, pim-sm, static ip routing, pim-dm, igmpv3, ospfv3, pim-ssm, multiprotocol bgp, msdp, vrrpe, policy-based routing (pbr), ripng remote management protocol : rmon, telnet, snmp 3, https, ssh encryption algorithm : pki The Hp a5800-24g-poe layer 3 managed switch has authentication method : radius, secure shell v.2 (ssh2) with features flow control, layer 2 switching, dhcp support, arp support, vlan support, igmp snooping, dos attack prevention, port mirroring, store and forward, ipv6 support, weighted random early detection (wred), dhcp snooping, trivial file transfer protocol (tftp) support, access control list (acl) support, quality of service (qos), committed access rate (car), mld snooping Compliant standards : ieee 802.1p, ieee 802.3af, ieee 802.3x, ieee 802.1x, ieee 801.1p, ieee 802.3ah, ieee 802.1ag It has a ram : 512 mb - sdram with flash memory : 512 mb flash.