Item

S6720S-26Q-EI-24S-AC
S6720S-26Q-EI-24S-DC

Fixed Ports

24 x 10 GE SFP+, 2 x 40 GE QSFP+ ports

Extended Slot

Not supported

MAC Address Table

288K MAC address entries
MAC address learning and aging
Static, dynamic, and black hole MAC address entries
Packet filtering based on source MAC addresses

VLAN

4K VLANs
Guest VLAN and voice VLAN
VLAN assignment based on MAC addresses, protocols, IP subnets, policies, and ports
1:1 and N:1 VLAN Mapping
QinQ and selective QinQ

IPv4 Routing

Static routing, RIPv1, RIPv2, ECMP, and URPF
OSPF, IS-IS, and BGP
VRRP
Policy-based routing
Routing policy

IPv6 Routing

Static route  
RIPng  
OSPFv3
BGP4+
ISISv6

IPv6 Features

Neighbor Discovery (ND)
PMTU
IPv6 ping, IPv6 tracert, and IPv6 Telnet 
6to4 tunnel, ISATAP tunnel, and manually configured tunnel
ACLs based on the source IPv6 address, destination IPv6 address, Layer 4 ports, or protocol type
MLD v1/v2 snooping

Multicast

Static 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
PIM-SM, PIM-DM, and PIM-SSM 
MSDP
MVPN

QoS/ACL

Rate limiting on packets sent and received by an interface
Packet redirection
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

MPLS

MPLS, MPLS VLL, L3VPN

VPLS

Martini VPLS

Reliability

TP (IEEE 802.1d), RSTP (IEEE 802.1w), and MSTP (IEEE 802.1s)
BPDU protection, root protection, and loop 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.8032v2)
BFD for OSPF, BFD for IS-IS, BFD for VRRP, and BFD for PIM
E-Trunk

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
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 and TACACS authentication
SSH v2.0 
Hypertext Transfer Protocol Secure (HTTPS)
CPU defense
Blacklist and whitelist

Super Virtual Fabric (SVF)

Working as the parent node to vertically virtualize downlink switches as one device for management, supports two-layer clients architecture
Support as a client node to be managed by SVF parent

VXLAN

Supports the VxLAN function, supports VxLAN L2 and L3 gateways
Configured through the NETCONF protocol

Management and Maintenance

iStack (using service ports as stack ports)            
MAC Forced Forwarding (MFF)            
Virtual cable test            
Ethernet OAM (IEEE 802.3ah and 802.1ag)            
Local port mirroring and Remote Switched Port Analyzer (RSPAN), allowing an observing port to forward packets            
Remote configuration and maintenance using Telnet            
SNMP v1/v2c/v3             
RMON            
Web NMS            
System logs and alarms of different levels            
GVRP            
MUX VLAN

Operating Environment

Operating temperature: 0m to 1,800m: 0°C to 45°C; 1,800m to 5,000m: 1°C decrease for every 220m increase in altitude
Relative humidity: 5% to 95% (non-condensing)

Input Voltage

AC:                        
Rated voltage range: 100V to 240V, 50 Hz/60 Hz           
Maximum voltage range: 90V to 264V, 50 Hz/60 Hz
DC:                        
Rated voltage range: –48V to –60V                        
Maximum voltage range: –36V to –72V

Dimensions (W x D x H)

442 mm x 220 mm x 44.4 mm

Typical  Power Consumption

AC:
without subcard: 109W

DC:
without subcard: 101W