Robust System Design
ZyXEL GS-1548 is a 48-port L2 Gigabit switch with advanced Web-based management support, and it's specially designed for SMB/Enterprise networks where extra bandwidth and advanced QoS or security features are required. To cope with the diverse requirements of SMB/Enterprise businesses, the ZyXEL GS-1548 Web-managed switch comes with 40 Gigabit copper ports plus 4 dual-personality (RJ-45/SFP) Gigabit ports to provide 96 Gbps of non-blocking connectivity for SB/SMB networks. With the flexible multi-function design, GS-1548 fits any network with very little effort.

Evolution New Managed Power
While many legacy Web-based Smart Switches improve manageability, configuration complexity is still an issue; for most SB/Enterprise, inadequate IT expertise and complicated configuration are the major concerns to overcome. Powered by the next-generation hardware platform with a content-aware engine, ZyXEL GS-1548 delivers stress-free networking. In addition, the streamlined and intuitive Web-GUI makes GS-1548 even easier to configure to slash the efforts needed.

Auto DoS Attack Prevention
Security is becoming increasingly important in SMB/Enterprise networks. Equipped with Auto DoS Attack Prevention, the GS-1548 is capable of protection against ubiquitous DoS attacks. A few mouse clicks are all it takes to initiate the protection, complete the once-complicated ACL setting and reduce operating efforts dramatically. The GS-1548 supports 802.1Q VLAN for traffic isolation, as well as Static MAC forwarding and dynamic ARP to establish a strictly protected network.

Auto VoIP Optimization
Migration to VoIP is the key to differentiate business competitiveness. It usually requires IT expertise to optimize a network for VoIP applications. With emergence of the "Auto VoIP" feature, however, the GS-1548 can identify VoIP packet patterns and grant the highest priority to establish a VoIP-friendly communication automatically. "Auto VoIP" offers IP telephony without configuration headaches; features such as four priority queues and the WRR (Weighted Round Robin) scheduling algorithm are usually deployed on enterprise networks, allowing users to optimize network bandwidth usage and implement QoS (quality of service). In terms of bandwidth management and switch interconnections, users can choose from several options and pick the most appropriate with just a mouse click.

Specifications

Standard Compliance:

IEEE 802.3 10Base-T Ethernet
IEEE 802.3u 100 Base-Tx Ethernet
IEEE 802.ab 1000 Base-T Ethernet
IEEE 802.3z
IEEE 802.3x Flow control
IEEE 802.1p Class of service, priority protocols
IEEE 802.1Q VLAN tagging
IEEE 802.3ad static port aggregation

Performance:

96Gbps non-blocking switching fabric
Switching Forwarding Rate 71.4Mpps
Wire-speed performance

MAC and Packet Buffer:

8K MAC entries
512KB Packet Buffer

Traffic Management and QoS:

Rate Limiting: Port-based bandwidth control ( 64kbps, 256 kbps, 1Mbps, 10Mbps, 64Mbps, 100Mbps, 1Gbps)
Port-based egress traffic shaping
Broadcast Storm Control
Congestion control on all ports
IEEE 802.1p with 4 priority queues per port for different types of traffic
WRR (Weighted Round Robin)/SPQ scheduling algorithm
Jumbo frame support ( up to 9KB)

Auto VoIP:

Auto VoIP module explicitly matches VoIP streams in switches and assign the highest priority for the following VoIP packets

SIP–Session Initiation Protocol
MGCP–Media Gateway Control Protocol
SCCP–Skinny Client Control Protocol

Link Agregation:

IEEE 802.3ad static port aggregation
Up to 6 aggregation groups, per group supports up to 8 ports

User Security and Authentication:

Specific MAC forwarding per port: only specified MAC addresses can access the network (Port Security)
IEEE 802.1Q tag-based and port-based VLAN
256 static VLAN, up to 4K dynamic VLAN
Dynamic ARP

Auto DoS attack prevention:

Auto DoS module explicitly matches attack patterns in switches and prevents network outage
Types of DoS Attacks can be prevented

Land Attacks — These attacks result from sending a specially crafted packet to a machine where the source host IP address is the same as the destination host IP address. The system attempts to reply to itself, resulting in system lockup.
Blat Attack — These switch results from sending a specially crafted packet to a machine where the source host port is the same as the destination host port. The system attempts to reply to itself, resulting in system lockup.
SYNFIN Scans — SYNchronization (SYN, ACKnowledgement (ACK) and FINish (FIN) packets are used to initiate, acknowledge and conclude TCP/IP communication sessions. The following scans exploit weakness in the TCP/IP specification and try to illicit a response from a host to identify ports for an attack:
- Scan SYNFIN — SYN and FIN bits are set in the packet
- Xmascan — TCP sequence number is zero and the FIN, URG and PSH bits are set
- NULL scan — TCP sequence number is zero and all control bits are zeros
- SYN with port ‹1024 — SYN packets with source port less than 1024.
Smurf Attacks — This attack uses Internet Control Message Protocol (ICMP) echo requests packets (pings) to cause network congestion or outrages.
Ping Flooding — This attack floods the target network with ICMP packets.
SYN/SYN-ACK Flooding — This attack floods the target network with SYN or SYN/ACK packets.

Network Administration Security:

Password required for administrators

Network Management:

Web-based management
Telnet
SNMP v1, v2, v3
IP management: static IP or DHCP client
RMON-Lite
Port mirroring: supports Source/Destination/Both port mirroring
Cable Diagnostic

MIB Information:

RFC1213 MIB II
RFC1398 (Ether-like)

Hardware Specification:

Support of auto-negotiation
Support of auto MDI/MDI-X,
Ports: 20/44 1000BASE-T, RJ-45 ports, 4 dual-personality (RJ-45/ SFP slot) GbE ports

Physical Specifications:

44 100/1000BASE-T copper ports + 4 dual-personality (RJ-45/SFP) Gigabit ports
Dimensions: 17.2” (W) x 9.4” (D) x 1.75” (H) / 438(W) x 240(D) x 44.45(H) mm
Weight: 8lbs / 3.7 Kg

Power Requirements:

Input voltage of AC: 100-240VAC, 50/60Hz
Max power rating of AC: 82 Watt

Environmental Specifications:

Operating temperature: 32°F – 113°F / 0°C ~ 45°C
Storage temperature: -13°F - 158°F / - 25°C ~ 70°C
Operating humidity: 10% ~ 90%, (non-condensing)

Safety:

UL 60950-1
CSA 60950-1
EN 60950-1
IEC 60950-1

ZyXEL Product	Part Number
ZyXEL GS-1548
ZyXEL GS-1548 48-port Web Managed Switch	#GS1548 List Price: $744.99 Our Price: $585.00