HT3550-24T16Y is high performance routing switch with 24 10/100/1000 Base-T ports and 16 25G SFP28 ports. It is designed to meet the requirements of nextgeneration Enterprise, Data Center, Metro and HCI (Hyper-Converged Infrastructure) networks.
Based on OS software, the switch supports the following features: IPv4/IPv6 protocol stack, multiple IPv4/IPv6 tunnel technique, data center DCB features(PFC/ECN/ETS), VXLAN, MLAG and hardware based OAM (802.1ag/Y.1731/CFM/EFM), etc.
Features
Data Center Features
• Supports Priority Flow Control (PFC), explicit Congestion Notification (ECN) and Data Center TCP, etc.
• Supports MLAG (Multi-Chassis Link Aggregation) to aggregate links across different devices. MLAG uses a peer link
between two devices to aggregate two devices and make them as one device logically. Ports of two different devices join
the aggregate ports together and all port can transmit the data traffic.
• Supports overlay technology (NVGRE/VXLAN/GENEVE etc.). Overlay can make layer 2 packets across the layer 3 networks
by using NVGRE/VXLAN/GENEVE header to encapsulate the entire ethernet packets. Overlay resolves the problem of MAC
table size limitation in traditional layer 2 networks, resolves the problem of VLAN id count limitation, and resolves the
problem network dynamic adjustment which cannot achieve by VLAN/VPN.
• Supports RPC-API.
High Reliability
• Hot-swappable power modules support AC/DC 1+1 redundancy. Fans support N+1 redundancy.
• Supports real-time environment monitoring technology to detect the chipset temperature, status of fan and power, etc.
• Supports LACP/ECMP/VRRP/VARP/STP/RSTP/MSTP/Smart Link/BFD/ERPS/G.8031/G.8032/load-balancing, etc.
• Patented technology “Sysmon” for CPU status monitoring can take action when system is error.
Outstanding QoS Control
• Provides 13 hardware queues per-port (8 uni-cast queues, 4 multicast queues, 1 monitor queue).
• Supports multi-stage scheduling technology such as WDRR (Weighted Deficit Round Robin)/SP (Strict Priority) and TD (Tail
Drop)/WRED (Weighted Random Early Detection) to prevent congestion.
• Supports flexible queue scheduling mechanism to do the shaping for queue or port traffic.
• Ingress and egress policer provide intelligent bandwidth monitoring, adjust the granularity according to the port speed.
• Supports srTCM (Single Rate Three Color Marker) and trTCM (Two Rate Three Color Marker).
Triple-play Service Support with Bandwidth Guaranty
• Offers high bandwidth for triple-play services such as IPTV, video monitoring. The built-in QoS capabilities and flexible
queuing technologies guarantee high quality of services.
• Rich multicast protocol set (IGMP Snooping, IGMPv1/v2, PIM-SM) support up to 2K multicast groups and 4K logical
replications per group. With FSOS software, IPTV service and multicast latency control are fully supported.
Comprehensive Network Security Policy
• Supports subscriber-class/switch-class/network-class security control.
• IPv4/IPv6/MAC ACL can filter IPv4/IPv6/Non-IP packet respectively. Besides that, extended IPv4/IPv6 ACL which can match
Layer 2/layer 3/layer 4 information in one rule is available. The ACLs can apply to physical ports/vlan/port group/vlan group.
The members of port group or vlan group share a set of ACLs and save the TCAM resource.
• ARP Inspection and IP Source Guard features prevent network from malicious ARP attack.
• Supports CPU Traffic Protection, Storm Control and CPU load optimization features.
• Supports centralized 802.1x authentication feature to forbidden illegal user accessing network.
Key Features
Intelligent Ethernet OAM
• With the IEEE802.1ag and ITU-T Y.1731 end-to-end OAM, Ethernet service providers can monitor the services, survey the
end-to end performance and ensure the service quality match the agreement.
• Supports the fault management technique includes CCM, LTM and LBM.
• Test the single link, manage the device from remote and direct the network fault, according to the standard 802.3ah.
Convenient Management Features
• Supports Varied management interfaces, include console port/inband network ports/outband network port/USB port.
• Supports SNMPv1/v2/v3, Support CLI (Command Line Interface), web management, Telnet and FTP connection.
• Supports OAM to make management more convenient, and support SSH2.0, SSL, etc. to ensure security of management.
System Design for Green and Energy Saving
• Intelligent FAN adjustment and real-time power consumption monitoring technology are provided for the cost of
maintenance redundancy and help to build a green and energy saving data center.
