Hardware Features

• Dedicated SFP Fiber Uplinks
• Fanless Design
• Energy Efficient Ethernet (IEEE802.3az)

Software Features

• Dynamic VLAN Assignment
• Static Routing
• Comprehensive IPv6 Support for Management, ACL and QoS
• IGMP Snooping and MLD Snooping
• Robust Security Features:
  - 802.1x authentication
  - DHCP Snooping
  - Port-based security by locked MAC
  - ACL filtering to permit or deny traffic based on MAC and IP addresses
• Auto Voice and Auto Video
• Comprehensive QoS Features:
  - Port-based or 802.1p-based prioritisation
  - Layer 3-based (DSCP) prioritisation
  - Port-based ingress and egress rate limiting
• DHCP Snooping
• Dual Firmware Images and Configuration Files
• Protected Ports
• Dynamic ARP Inspection
• Multicast VLAN Registration
• EAV (Ethernet Audio/Video Bridging) Support

Product Specifications

• Interfaces: 24 10/100/1000 Mbps auto-sensing Gigabit Ethernet switching ports, and two dedicated 1000M SFP fiber ports.

Performance Specifications

• Forwarding modes: Store-and-forward
• Bandwidth: 52 Gbps
• Priority queues: 8
• Priority queuing: Weighted Round Robin (WRR)
• MAC Address database size: 16k media access control (MAC) addresses
• Addressing: 48-bit MAC address
• Multicast groups: 512
• Number of static routes: 32
• Number of routed VLANs: 15
• Number of ARP Cache entries: 512
• Number of DHCP snooping bindings: 8K
• Number of DHCP static entries: 1024
• ACL: 100 shared for MAC, IP and IPv6 ACLs
• Jumbo frame support: up to 9K packet size
• Acoustic noise (ANSI-S10.12): 0 dBA
• Mean Time Between Failures (MTBF): 567,680 hours

L2 Services - VLANS

• IEEE 802.1Q VLAN Tagging: Yes
• Protocol based VLANs: Yes
• MAC based VLANs: Yes
• Voice VLAN: Based on phones OUI bytes (internal database, or user-maintained) or protocols (SIP, H323 and SCCP)
• Protocol-based VLAN: Yes

Network Security

• IEEE 802.1x
• Guest VLAN
• RADIUS based VLAN assignment via .1x
• MAC-based .1x
• RADIUS Accounting
• Network Storm Protection, DoS
• Broadcast, Unicast, Multicast DoS Protection
• DoS Attacks
• Dynamic ARP inspection

L2 Services - Availability

• IEEE 802.3ad - LAGs
• LACP (26 LAGS with max. of 8 members in each LAG)
• Broadcast Storm Control
• IEEE 802.3x (Full Duplex and flow control)
• IEEE 802.1D Spanning Tree Protocol
• IEEE 802.1w Rapid Spanning Tree
• IEEE 802.1s Multiple Spanning Tree

L2 Services - Multicast Filtering

• IGMP Snooping (v1, v2 and v3)
• MLD Snooping Support (v1 and v2)
• IGMP Snooping Queries
• Block Unknown Multicast
• Multicast VLAN Registration

L3 Services - DHCP

• DHCP Client
• DHCP Snooping

L3 Services - IPV4 Routing

• Static Routing
• VLAN Routing
• IP Source Guard

Network Monitoring and Discovery Services

• 802.1ab LLDP
• SNMP: v1, v2c, v3
• RMON 1,2,3,9

Network Traffic

• Access Control Lists (ACLs): L2 / L3 / L4
• IP-based ACLs (IPv4 and IPv6)
• MAC-based ACL
• TCP/UDP-based ACL
• MAC lockdown
• MAC lockdown by the number of MACs
• IEEE 802.1x Radius Port Access Authentication
• Port-based security by locked MAC addresses
• Dynamic VLAN Assignment
• Dynamic ARP inspection

Quality of Service (QOS)

• Access Lists
• L2 MAC, L3 IP and L4 Port ACLs
• Ingress rate limiting
• Egress rate limiting
• Support for IPv6 fields
• DiffServ QoS
• IEEE 802.1p COS
• Dst MAC and IP
• IPv4 and v6 DSCP
• IPv4 and v6 TOS
• WRR (Weighted Round Robin)
• Strict Priority Queue Technology
• Timing and Synchronisation for Time Sensitive Applications (IEEE802.1AS)
• Stream Reservation Protocol (SRP) (IEEE802.1Qat)
• Forwarding and Queuing for Time Sensitive Streams (IEEE802.1Qav): up to 24 ports simultaneously
• Audio Video Bridging Systems (IEEE802.1BA)
• Auto-VoIP: Yes, based on protocols (SIP, H323 and SCCP) or on OUI bytes (default database and user-based OUIs) in the phone source MAC address
• Auto Video
• Port Mirroring

IEEE Network Protocols

• IEEE 802.3 Ethernet
• IEEE 802.3i 10BASE-T
• IEEE 802.3u 100BASE-T
• IEEE 802.3ab 1000BASE-T
• IEEE 802.1Q VLAN Tagging
• IEEE 802.3x Full-Duplex Flow Control
• IEEE 802.1Qav1
• IEEE 802.3z Gigabit Ethernet 1000BASE-SX/LX
• IEEE 802.3ae 10-Gigabit Ethernet
• IEEE 802.3ad Trunking (LACP)
• IEEE 802.1AB LLDP with ANSI/TIA-1057 (LLDP-MED)
• IEEE 802.1p Class of Service
• IEEE 802.1Qat1
• IEEE 802.1D Spanning Tree (STP)
• IEEE 802.1s Multiple Spanning Tree (MSTP)
• IEEE 802.1w Rapid Spanning Tree (RSTP)
• IEEE 802.1x Radius network access control
• IEEE 802.1BA1
• IEEE 802.1AS1

Management

• Password Management
• Configurable Management VLAN
• Admin Access Control via Radius and TACACS+
• Web-based Graphical User Interface (GUI)
• Smart Control Center (SCC) for Multi-switch Management
• IPv6 Management
• Dual Software (firmware) Image
• Dual Configuration File
• SNTP Client over UDP Port 123
• SNMP v1/v2C
• SNMP v3 with Multiple IP Addresses
• RMON 1,2,3,9
• Port Mirroring
• Many to One Port Mirroring
• Cable Test Utility
• SSL/HTTPS and TLS v1.0 for Web-based access
• File Transfers (uploads, downloads): TFTP / HTTP
• HTTP Download (firmware)
• Syslog (RFC 3164)

LEDs

• Per Port: Speed, Link, Activity
• Per Device: Power and Fan (GS748T only)

Physical Specifications

• Weight: 2.74kg
• Dimensions (WxDxH): 440 x 204 x 43mm

Power Consumption

• WorstCase, all ports used, line-rate traffic: 17.4W

Environmental Specifications

• Operating Temperature: 32° to 122°F (0° to 50°C)
• Operating Humidity: 90% maximum relative humidity, non-condensing
• Operating Altitude: 10,000ft (3,000m) maximum
• Storage Temperature: –4° to 158°F (–20° to 70°C)
• Storage Humidity: 95% maximum relative humidity, non-condensing
• Storage Altitude: 10,000ft (3,000m) maximum

Electromagnetic Emissions and Immunity

• Certifications:
  - CE mark, commercial
  - FCC Part 15 Class A, VCCI Class A
  - Class A EN 55022 (CISPR 22) Class A
  - Class A C-Tick
  - EN 50082-1
  - EN 55024
  - CCC

Safety

• Certifications:
  - CE mark, commercial
  - CSA certified (CSA 22.2 #950)
  - UL listed (UL 1950)/cUL IEC 950/EN 60950