Data Sheet

STANDA RD FE ATURES
Physical Ports
24-port Gigabit PoE+ Managed Switch
(NS4702 & NS4802)
• 24-ports 10/100/1000Base-T Gigabit
Ethernet RJ-45 with IEEE 802.3at PoE+
• 4 SFP/mini-GBIC slots shared with ports 21
to 24 - compatible with 1000Base-SX/LX/
BX and 100Base-FX SFP transceivers
• 4 10Gbps SFP+ ports (NS4702) or 2
10Gbps SFP+ ports (NS4802)
• RJ45 console interface for basic switch
management and setup
• 2 40Gbps Stacking Ports (NS4802)
24-port Gigabit Managed Fiber Switch
(NS4750)
• 24 SFP/mini-GBIC slots - compatible with
1000Base-SX/LX/BX and 100Base-FX SFP
transceivers
• 4-ports 10/100/1000Base-T RJ-45 copper,
shared with ports 1 to 8
• 4 10Gbps SFP+ Ports
• RJ45 console interface for basic switch
management and setup
High-performance Switch Architecture
• IEEE 802.3, IEEE 802.3u, IEEE 802.3ab,
IEEE 802.3z, IEEE 802.3ae standards
compliance
• High performance Store and Forward
architecture, broadcast storm control, runt/
CRC filtering eliminates erroneous packets
to optimize the network bandwidth
• Packet loss prevention with back pressure
(half-duplex) and IEEE 802.3x PAUSE frame
flow control (full-duplex)
• Up to 128Gbps non-blocking switch fabric
• 10K bytes Jumbo frame support
• 16K MAC address table, automatic source
address learning and ageing
Stacking Function
(NS4802)
• Ability to stack up to 16 units
• Up to 384 virtual port switch
• One single IP address to manage all devices
in the stack
• Hot Swappable switches
• Redundancy
Full Multicast Support for IP Video
• IGMP Snooping v1, v2 and v3 fast leave
• IGMP Query mode support
• Up to 256 multicast groups
VLAN Support
• IEEE 802.1Q Tag-Based VLAN
• Up to 255 VLANs groups, out of
4096 VLAN IDs
• Port-Based VLAN
• Q-in-Q tunneling (Double Tag VLAN)
Layer 3 IP Routing
• Maximum of 128 static routes and route
summarization supported
• Hardware accelerated Layer 3 routing
performance
Spanning Tree Protocol
• STP, IEEE 802.1D (Spanning Tree Protocol)
• RSTP, IEEE 802.1w (Rapid Spanning Tree
Protocol)
• MSTP, IEEE 802.1s (Multiple Spanning Tree
Protocol); Up to 8 MSTP instances
Quality of Service (QoS)
• 4 priority queues on all switch ports
• Traffic classification:
- IEEE 802.1p Class of Service
- IP TOS/DSCP code priority
- Port Base priority
• Strict priority and weighted round robin
(WRR) CoS policies
• Ingress/Egress Bandwidth Control on
each port
Power over Ethernet
(NS4702 & NS4802)
• IEEE 802.3at Standard compliant
• 380W (NS4802) or 440W (NS4702) Total Power
Budget
• Auto-detection of PoE Power Device (PD)
• Powers up to 24 ports @ 15.4W or up to 14
ports @ 30W per port.
• Circuit protection that isolates and prevents
power interference between ports
• End-Span (PSE) configuration that supplies
power up to 100m
• PoE Management Features
- Total power budget control
- Per port control (enable/disable, priority,
power limit)
- Per port scheduling
- PD classification detection
- Power Supply Over temperature Protection
- PD Alive-checking
Link Aggregation
• IEEE 802.3ad LACP (Link Aggregation
Control Protocol)
• Up to 16 Trunk groups
• Up to 8 ports per trunk group with
1.6Gbps bandwidth
(Full Duplex mode)
• Cisco ether-Channel (Static Trunk) support
Advanced Security
• IEEE 802.1x Port-based authentication
• RADIUS and TACACS+ users access
authentication
• Layer 3 and Layer 4 Access Control
List (ACL)
• MAC Filtering and Source IP/MAC address
port-binding
• Port Mirroring to monitor incoming or
outgoing traffic on a particular port
Switch Management
• Local console or remote switch
management via Web browser, Telnet CLI,
SNMP v1, v2c, v3
• SNMP Trap for alarm notification
of events
• Four RMON groups 1, 2, 3, 9 (history,
statistics, alarms, and events)
• Built-in Trivial File Transfer Protocol
(TFTP) client
• BOOTP and DHCP for IP address
assignment
• Configuration upload/download via TFTP
or HTTP
• Firmware upgrades via TFTP or HTTP
• SNTP (Simple Network Time Protocol)
• LLDP Protocol
• Supports IP ping
• Reset button for system management
Warranty
• 3-year Limited Warranty