High-availability, scalable 10 Gbit/s server access for Internet Data Centers (IDCs) and large traditional data centers. High-performance forwarding (up to 1,080 Mpps), total switching capacity of 2.56 Tbit/s, and optional configuration of 4 x 40 GE QSFP+ interface card gives the S6720-EI Series Switches unusual flexibility: use to provide access to high-bandwidth server-based applications, or as a core or aggregation switch in enterprise campus networks.

Intelligent QoS features, comprehensive security, and 1+1 backup of AC and DC power modules provide secure, reliable operation. For additional flexibility, the 40 Gbit/s QSFP+ ports support long-distance stacking.

High-performance fixed switches to handle applications for data center servers and core campus networks

  • The S6720 provides line-speed 10 GE access ports and line-speed 40 GE uplink ports, and supports long-distance stacking with 480 Gbit/s bi-directional stack bandwidth
  • Supports comprehensive security policies, such as anti-DDoS, binding tables, and IPSG, plus reliability mechanisms
  • Provides enhanced QoS capabilities, strong MPLS service processing capabilities, and high scalability. Supports 1+1 backup of AC and DC power modules that can be installed on the same device, as well as sFlow traffic monitoring technology
  • Supports Easy Operation Commander, Zero-Touch Provisioning (ZTP) of new devices, batch device upgrades and patch installation, and faulty device replacement








Switching Capacity2.56 Tbit/s2.56 Tbit/s2.56 Tbit/s
Forwarding Performance720 Mpps1,080 Mpps480 Mpps
Fixed Ports24 x 10 GE SFP+, 2 x 40 GE QSFP+ ports48 x 10 GE SFP+, 2 x 40 GE QSFP+ ports24 x 10 GE SFP+, 2 x 40 GE QSFP+ ports
Extended SlotOne extended slot for 4 x 40 GE QSFP+ interface cardOne extended slot for 4 x 40 GE QSFP+ interface cardNot supported
MAC Address Table288k MAC address entries

MAC address learning and aging

Static, dynamic, and black hole MAC address entries

Packet filtering based on source MAC addresses

IPv4 RoutingStatic routing, RIPv1, RIPv2, ECMP, and URPF



Policy-based routing

IPv6 RoutingStatic route





MulticastStatic Layer 2 multicast MAC address

MAC-based multicast forwarding

IGMP snooping and IGMP fast leave

Multicast VLAN

MLD snooping

IGMP proxy

Controllable multicast

Port-based multicast traffic statistics

IGMP v1/v2/v3



QoS/ACLRate limiting on packets sent and received by an interface

Packet re-direction

Port-based traffic policing and two-rate three-color CAR

Eight queues on each port

WRR, DRR, SP, WRR + SP, and DRR + SP queue scheduling algorithms

Re-marking of the 802.1p priority and DSCP priority

Packet filtering at Layer 2 to Layer 4, filtering out invalid frames based on the source MAC address, destination MAC address, source IP address, destination IP address, port number, protocol type, and VLAN ID

Rate limiting in each queue and traffic shaping on ports

SecurityUser 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

Limit on the number of learned MAC addresses

802.1x authentication and limit on the number of users on an interface

AAA, RADIUS, and TACACS authentications

SSH v2.0

Hypertext Transfer Protocol Secure (HTTPS)

CPU defense

Blacklist and whitelist

InteroperabilityVLAN-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)

For detailed interoperability certifications and test reports, click HERE.