device type switch 28 ports l3 managed stackable enclosure type rack mountable 1u subtype10 gigabit ethernet ports 2 x 10100100010000 2 x 10 gigabit sfp 24 x 101001000 performance switching capacity 128 gbps max units in a stack 8 routing protocol ospf rip igmpv2 igmp vrrp pim sm pim dm igmpv3 mldv2 remote management protocol snmp telnet https ssh cli authentication methodradius tacacs features arp support diffserv support i