• A 1U box switch bears 24 gigabit optical ports, 8 gigabit electrical/optical ports and 4 10GE ports. It adopts the high-performance ASIC switch chip, which can meet the requirements of all kinds of complicated application sites.
• One S2928F can support 64K MAC.

• S2928F Series supports BVSS (BDCOM Virtual Switch System) which can virtualize multiple devices into one. The performance and the management of the virtualized device is superior to any independent physical device.
• Doubled Performance: The virtualization system can make best use of every link among the physical devices, which prevents the block from the STP of the traditional networking model. It reserves the original link investment to the greatest extent.
• High Reliability: Based on the advanced distribution processing technique and high-efficient cross-physical device link aggregation function, the logical control surface, the service controal surface and the service data surface can work independently (without mutual interference) and provide non-stop routing forwarding, which avoid service interruption causing by the single point faults. Thus, the reliability of the virtual system is greatly enhanced.

• The whole virtual system realizes single IP management and the physical device is transparent to the user. Subsequently, the management of the device and the network topology is simplified and the maintenance cost is reduced effectively.

• Based on HPS (Hitless Protection System), the key components of S2928F can realize seamless switching in default. For instance, the power supply can expand to dual power supply backup.
• S2928F Series supports STP/RSTP/MSTP protocol, VRRP protocol, Ethernet ring protection, dual uplink primary and secondary link protection, and LACP link aggregation
• S2928F Series supports ISSU (In-Service Software Upgrade) which guarantees the non-stop forwarding of the user data in system upgrade.
• S2928F Series supports ultra-high BFD dual-directional link detection mechanism. Through the linkage of layer-2 and layer-3 protocols, the fault detection and service recovery can be realized in seconds.
• S2928F Series supports Ethernet OAM mechanism, 802.3ah, 802.1ag and ITU-Y.1731. Through real-time monitoring the networking running state, the fault can be fastly detected and located.
• S2928F Series supports the high-reliability design of the software and hardware. Its fault recovery time is 50ms, and its high reliability is up to 99.999%.

• S2928F Series supports complete layer-2 routing protocols, which meets the access requirement of IPTV, multi-end high-definition video monitoring and high-definition video conference;
• S2928F Series supports layer-3 routing function;

• S2928F Series supports the IPv6 protocol suite, IPv6 neighbor discovery, ICMPv6, path MTU discovery, DHCPv6, etc.
• S2928F Series supports Ping, Traceroute, Telnet, SSH, ACL and so like on the basis of IPv6, meeting IPv6 networks' equipment management requirements and service control requirements.

• Equipment-level security: The advanced hardware architecture design realizes the level-based packet schedule and packet protection, prevents DoS-/TCP-related SYN Flood, UDP Flood, Broadcast Storm or large traffic attacks, and supports level-based command line protection, endowing different levels of users with varied management permissions;
• Perfect security authentication mechanisms: IEEE 802.1x, Radius and BDTacacs+;
• Enhanced service security mechanism: S2928F Series supports the plaintext or MD5 authentication related to the routing protocol; uRPF; hardware packet depth detection and filtration; the depth detection of the control packet and data packet.

• Intelligent power supply management system: S2928F Series adopts the advanced power supply system architecture design and supports functions including high-efficient power supply switching, power supply monitoring and soft start.
• Intelligent fan management system: S2928F Series adopts the intelligent fan design, which supports automatic speed adjustment and effectively reduces the noise and prolongs the fans life.
• S2928F Series supports efficient Ethernet function and complies with the international standard IEEE 802.3az.

Specifications:

Specifications
Product Code	BDCOM-S2928F-2AC
Item	S2928F Series
Backplane	256 Gbps
Forwarding	168 Mpps
MAC	32K/64K
Ports	24 gigabit optical ports, 8 electrical/optical combo ports, 4 10GE optical ports
Dimensions (WxHxD) mm	440x280x44
Power supply	AC: 100V-240V, 50Hz±10%
	Optional dual power supply
Environment	Operating temperature and humidity: 0°C-50°C, 10%-90% non-condensing
	Storage temperature and humidity: -20°C-70°C, 5%-95% non-condensing
MAC exchange	Static configuration and dynamic MAC learning
	MAC browsing and removal
	Configurable aging time of the MAC address
	Limited number of learnable MAC addresses
	MAC filtration
	Black-hole MAC list
VLAN	4K VLAN
	GVRP
	1:1 VLAN mapping and N:1 VLAN mapping
	QinQ and flexible QinQ
	Private VLAN
STP	802.1D (STP), 802.1W (RSTP) and 802.1S (MSTP)
	BPDU protection, root protection, and loopback protection
Multicast	IGMP v1/v2/v3
	IGMP Snooping
	IGMP Fast Leave
	Multicast group strategy and quantity limitation
	Multicast flow copying over VLANs
	PIM-SM, PIM-DM
IPv4	Static routing, RIP v1/v2, OSPF, BGP
	Strategy routing
	Load balance by equivalent routing
	BFD for OSPF, BGP
IPv6	ICMPv6, DHCPv6, ACLv6 and IPv6 Telnet
	IPv6 neighbor discovery
	Path MTU discovery
	MLD V1/V2
	MLD Snooping
	IPv6 static routing, RIPng, OSPFv3, BGP4+
	Manual tunnel, ISATAP tunnel, 6 to 4 tunnel
MCE	MCE
MPLS VPN	LDP protocol
	MCE
	MPLS VPN supported P/PE
	MPLS TE
	MPLS OAM
QoS	Flow classification based on L2/L3/L4 protocols
	CAR flow limit
	802.1P/DSCP priority re-labeling
	SP, WRR and "SP+WRR"
	Congestion avoidance mechanisms like Tail-Drop and WRED
	Flow monitoring and flow shaping
Security	L2/L3/L4 ACL flow identification and filtration
	DDoS attack prevention, TCP's SYN Flood attack prevention, UDP Flood attack prevention, etc
	Broadcast/multicast/unknown unicast storm-control
	Port isolation
	Port security, and "IP+MAC+port" binding
	DHCP snooping and DHCP option 82
	IEEE 802.1x authentication
	Radius BDTacacs+ authentication
	uRPF
	Level-based command line protection
Reliability	Power supply 1+1 backup
	Static/LACP link aggregation, link aggregation of across-service cards
	EAPS
	VRRP
	GR for OSPF and BGP
	BFD for OSPF and BGP
	ISSU uninterrupted system upgrade
Management	Console, Telnet, SSH2.0
	Browser-based WEB management
	SNMP v1/v2/v3
	TFTP file upload and download
	RMON
	sFLOW
Environment protection	IEEE802.3az environment protection Ethernet