| S5720-28X-SI-AC Specifications |
| Switching Capacity | 336 Gbit/s |
| Forwarding Performance | 42 Mpps/57 Mpps/78 Mpps/96 Mpps/132 Mpps |
| Fixed Ports | 24 Ethernet 10/100/1,000 ports, 4 of which are dual-purpose 10/100/1,000 or SFP |
| P series: 4 Gig SFP |
| X series: 4 x 10 Gig SFP+ |
| MAC Address Table | 16K |
| Ring Protection | RRPP ring topology and RRPP multi-instance |
| Smart Link tree topology and Smart Link multi-instance, providing the millisecond-level protection switchover |
| SEP |
| ERPS (G.8032) |
| STP (IEEE 802.1d), RSTP (IEEE 802.1w), and MSTP (IEEE 802.1s) |
| BPDU protection, root protection, and loop protection |
| IP Routing | Static route, RIPv1, RIPv2, RIPng, ECMP, OSPF, OSPFv3, BGP, BGP4+, IS-IS, IS-ISv6, VRRP, and VRRP6 |
| Multicast | PIM-DM, PIM-SM, and PIM-SSM |
| IGMP v1/v2/v3 snooping and IGMP fast leave |
| Multicast forwarding in a VLAN and multicast replication between VLANs |
| Multicast load balancing among member ports of a trunk |
| Controllable multicast |
| Port-based multicast traffic statistics |
| Security | User privilege management and password protection |
| DoS attack defense, ARP attack defense, and ICMP attack defense |
| Binding of the IP address, MAC address, interface, and VLAN |
| Port isolation, port security, and sticky MAC |
| Blackhole MAC address entries |
| MAC Forced Forwarding (MFF) |
| Limit on the number of learned MAC addresses |
| 802.1x authentication and limit on the number of users on an interface |
| AAA authentication, RADIUS authentication, HWTACACS+ authentication, and NAC |
| SSH v2.0 |
| Hypertext Transfer Protocol Secure (HTTPS) |
| CPU defense |
| Blacklist and whitelist |
| 802.1x authentication, MAC address authentication, and combined authentication on a per port basis |
| Portal authentication on a per VLANIF interface basis |
| MACSec (hardware ready) |
| Super Virtual Fabric (SVF) | Working as an SVF client that is plug-and-play with zero configuration |
| Automatically loading the system software package and client patches |
| One-click and automatic delivery of service configurations |
| Supports independent running client |
| Management and Maintenance | iStack |
| Virtual cable test |
| SNMP v1/v2c/v3 |
| RMON |
| Web-based NMS |
| System logs and alarms of different levels |
| sFlow |
| Interoperability | VLAN-based Spanning Tree (VBST) (interoperating with PVST, PVST+, and RPVST) |
| Link-type Negotiation Protocol (LNP) (similar to DTP) |
| VLAN Central Management Protocol (VCMP) (similar to VTP) |
