52-Port Managed Business Gigabit Switch LINKSYS LGS552

-      50 Port 10/100/1000 Mbps, 2 Port Combo SFP và RJ45, 2 x 10-Gigabit SFP+ Port Expansion.

-      CPU MEMORY DRAM: 128MB.

-      FORWARDING RATE: 104.16Mpps.

-      SWITCHING CAPACITY: 140Gbps.

-      MAC Address: 16K.

-      JUMBO Frame (FE, GE): 9K.

-      Fully Layer 2 Managed and Layer 3 Static Routing Support, Advanced Layer 2/Layer 3 Security and Policy Control, Advanced Layer 3 Quality of Service (QoS).

-      52-port switch featuring Gigabit speed, enhanced security, and advanced traffic management.

-      Two combo mini-GBIC (SFP) ports.

-      Two 10-Gigabit uplink Ethernet SFP+ ports.

-      Layer 3 static routing.

-      IPv6 Support.

-      Advanced QoS.

-      Advanced Security.

-      Meets EEE (Energy Efficient Ethernet) 802.3az standard.

ADVANCED NETWORK MANAGEMENT CAPABILITIES

Advanced features include Layer 2 Switching and Layer 3 Static Routing between different VLAN communications without any performance degradation for a more efficient network. Linksys 500 Series Switches manage internal routing with your router and dedicate fixed paths to external traffic and security.

ADVANCED TRAFFIC-HANDLING INTELLIGENCE

Layer 2 MAC and Layer 3 IP Flow-based Policies and Rate Limiting Control prioritize traffic, offering an ideal solution to manage and control real-time, high bandwidth, voice and video traffic without slowing down your other business applications.

ADVANCED NETWORK SECURITY FEATURES

Extensive Access Control Lists (ACLs) control and block portions of the network from unauthorized users and external network attacks, while DHCP Snooping, IP and MAC-Port Binding functions help ensure network integrity. IEEE 802.1X Port Security strictly limits access to specific segments of your network, and Port Authentication and MAC-based Port Security require clients to authenticate themselves before any data passes.

FIBER-OPTIC NETWORK EXPANSION SUPPORT

Additional Gigabit SFP+ Fiber-Optic port expansions provide a powerful combination of business scalability for any server farm and data center environment, and enhance high bandwidth demands while providing redundancy for fast and easy network growth. Mini Gigabit Interface Converter (mini-GIBC) expansion ports offer the option to add fiber-optic or Gigabit Ethernet uplink connectivity to these managed switches.

OPTIMAL ENERGY-EFFICIENT ETHERNET SUPPORT

Reduce energy consumption by monitoring the amount of traffic and states of any inactive ports without compromising performance. Linksys 500 Series Switches are specifically designed to optimize power and efficiency and support the Energy-Efficient Ethernet (IEEE 802.3az) Standards.

Technical specifications

-      Network Standards:

o   IEEE 802.3 

o   IEEE 802.3u 

o   IEEE 802.3ab 

o   IEEE 802.3z 

o   IEEE 802.3ae 

o   IEEE 802.3x 

o   IEEE 802.3ad 

o   IEEE 802.3az 

o   IEEE 802.1D 

o   IEEE 802.1w 

o   IEEE 802.1Q/p 

o   IEEE 802.1X

-      Memory:
128 MB 

-      LEDs:
System (blue/yellow), Link/Act(green) 

-      System Power Consumption without PoE+:

o   110V: 19.4W 

o   220V: 19.71W

-      Forwarding Rate:
104.16 Mbps 

-      Switching Capacity:
140 Gbps 

-      MAC Address Table Size:
16K 

-      Jumbo Frame (FE, GE):
9K 

-      Dimensions (LxWxH):
440 x 350 x 44.45 mm (17.32 x 13.78 x 1.75 in.)  

-      Weight:
4.18 kg (9.22 lbs.) 

-      Power Input:

o   100–240V; 

o   50–60 Hz 

o   (1.4A max) 

-      Operating Temperature:
0 to 50°C (32 to 122°F) 

-      Storage Temperature:
-20 to 70°C (-4 to 158°F) 

-      Operating Humidity:
10 to 90% RH 

-      Storage Humidity:
10 to 90% RH (non-condensing) 

-      Spanning Tree:
IEEE 802.1d Spanning Tree, IEEE 802.1w Rapid Spanning Tree 

-      Link Aggregation:
IEEE 802.3ad LACP, up to 4 groups with up to 8 ports per group 

-      VLAN:
Port-based and IEEE 802.1Q tag-based VLANs 

-      Auto Voice VLAN:
VLAN voice traffic is automatically assigned by OUI to a voice-specific VLAN and treated with appropriate levels 

-      IGMP Snooping:
IGMP (v1/v2/v3) snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requesters; supports 256 multicast groups 

-      HOL Blocking Prevention:
Head-of-line (HOL) blocking prevention 

-      Port Mirroring:
Traffic on multiple ports can be mirrored to another port for analysis with a network analyzer 

-      Security Features:

o   IEEE 802.1X radius authentication 

o   DHCP snooping 

o   IP-MAC-Port binding 

o   IP source guard 

o   ARP inspection 

o   STP root guard 

o   STP BPDU guard 

o   DHCP relay 

o   Port security supports limited dynamic lock and locked MAC address, 

o   Management access control

-      Storm Control:
Broadcast, unknown-unicast, and multicast 

-      Access Control:
Support up to 512 rules for enhanced security and/or advanced QoS policy: allow, deny, or rate limit based on Layer1 to 4 protocol fields at packet header level with MAC ACL and IP ACL 

-      RMON:
Embedded remote monitoring (RMON) software agent support for enhanced traffic management, monitoring, and analysis 

-      Management Interface:

o   HTTP 

o   HTTPS

-      Other Management:
Telnet (menu-driven), DHCP client, system log, configuration unload and backup via HTTP or TFTP, PING, dual images, SNTP 

-      SNMP:

o   Version 1 

o   Version 2c

-      QoS - Class of Service:
Port-based, IEEE 802.1p priority-based, IPv4/v6 IP DSCP-based 

-      Combo Ports (RJ45 + SFP):
2 combo on ports g49, g50 

-      Copper FE/GE Ports (RJ45):
g01–g25, g26–g50  

-      Green Power Mode:
EEE+, Short Reach + Energy Detect 

-      QoS - Priority Levels:
4 hardware queues 

-      QoS - Scheduling:
Priority queuing and weighted round robin (WRR) 

-      10Gb Ports (SFP+):
XG1, XG2 

-      Total System Ports:
52GE  

-      Bảo hành chính hãng: 12 tháng.