VSW6856-HI switch is a high-performance, high-density port and low latency Ethernet switch, VSW6856-HI is a data center 25G tor switch.

Product Characteristics

High performance, full line speed forwarding

48*25G ports and 8*100G port can be provided, L2 / L3 full line speed forwarding.

Rich data center network characteristics

  • supports priority flow control (PFC), enhances transmission selection (ETS), quantifies congestion notification (qcn) and other characteristics, meets the needs of users to build packet free Ethernet in the data center, reduces user costs and simplifies management.
  • support the mainstream Vxlan EVPN, and solve the problem that the VLAN number of the traditional data center network is insufficient and the scale is difficult to expand;
  • support open API interfaces to meet the implementation and deployment of mainstream SDN technologies

High reliability, multiple stability protection:

  • support hot plug power supply and hot plug fan, provide equipment level reliability protection, and adopt redundant backup design scheme for all key components, which greatly improves the stability and reliability of the whole machine;
  • provide link level reliability protection, support VRRP, BFD and other link redundancy protocols, support cross device link aggregation technology, realize multi virtual one control plane, and ensure uninterrupted service system.

Hardware Specification

48*25G SFP28 and 8*100 QSFP28  port
Hot-swappable Power Supplies2(1+1) 550W
FAN5(4+1) Front-to-Rear
Dimensions(H×W×D)4.4 x 44.5 x 43 cm
Input Voltage100 ~ 240V,50/60Hz;240VDC
Power ConsumptionNormal: 280W     MAX: 350W
Operating Temperature0 to 45 ºC
Storage Temperature-40 to 70 ºC

Software Specification




Support full duplex, half duplex, and auto-negotiation duplex

Support auto-negotiation port speed

Support Jumbo Frame

Support Flow Control

Support Storm Control

Support Port-block

Support Port-isolate


Support 4096 VLAN

Support Default VLAN

Support VLAN mapping


Support Static Link aggregation

Support LACP

Support Static Load Balancing


Support STP/RSTP/MSTP Protocol

Support port Loopback Detect

Support VRRP

Support MLAG

Support VARP


Support static ARP

Support dynamic ARP leaning and aging

Support Gratuitous ARP

Support basic ARP-Proxy and local ARP-Proxy

Support DHCP Server

Support DHCP Relay

Support DHCP Snooping

Support DHCP Client

IPv4 Forwarding

Support IPv4 static routes

Support uRPF check

Support RIPv1, RIPv2

Support OSPFv2

Support BGP

Support Policy-based Routing ( PBR )

Support ECMP


Support ICMPv6

Support NDP

Support IPv6 static routes

Support RIPng

Support OSPFv3

Support DHCPv6


Support IGMP v1/v2/v3

Support IGMP agent


Support MLD v1/v2, MLD v1/v2 snooping

Support MVR and MVR6

Support PIM-SM v6

Data Center

Support priority-based flow control (PFC)

Support VXLAN

Support PFC Deadlock detection

Support EVPN


Traffic classification:

based on the combination of the MAC address, IPv4/IPv6 ddress, L2 protocol header, TCP, UTP, outgoing interface, and 802.1p field

Traffic behaviors:

Access control after traffic classification,

Re-marking based on traffic classification (COS, DSCP)

Class-based packet queuing

Queue scheduling:


Congestion avoidance:

Tail Drop, WRED (Weighted Random Early Detection)


Support SSH

Support Radius

Support TACAS+

Support AAA

Support access control list(ACL)

Support IP source guard

Support CPU Traffic Limit

Support Prevent DDOS attack

Support ACL filtering Telnet/SSH login

Support Link-Flapping detection

Maintenance and Management

support Configurations through CLI (Command Line Interface)

support Login through console and Telnet terminals

Support Network management based on SNMPv1/v2c/v3

Support Ping、traceroute 

Support Upload and download files through FTP or TFTP

support RMON management of logs, alarms, and debugging information detailed debugging information for diagnosing network faults local Mirror(Port Mirror and VLAN Mirror)