D-Link DES-1210-28P

D-LINK DES-1210-28P is the first PoE switch that comes from Fast Ethernet Smart III line. This switch features 24 Fast Ethernet ports, 2 Gigabit Ethernet ports and 2 additional Gigabit Metallic/Optical ports. It features Smart III features and supports power over an Ethernet cable (PoE/PoE+). With its easy-to-use web interface and eco-friendly design, the DES-1210-28P helps customers to build their networks quickly and easily while saving energy and money.
All ports support an automatic transfer and MDI/MDIX crossover settings, so there is no need to use cross-linked cables or special uplink ports. This solution makes connecting large PCs easy and inexpensive. Gigabit uplinks throughput up to 2000Mbps in Full Duplex mode then provide high-speed data connectivity to servers or backbone networks with minimal downtime during data transfer.
The innovative features of the D-Link Safeguard Engine protect the switch from overflow by unwanted traffic caused by virus attacks. In addition, the switch supports access control lists (ACLs) and 802.1X port authentication via external RADIUS servers. The IP-MAC-port link allows the administrators to track the location of IP addresses by linking the source IP address to the appropriate MAC address and source port. To further increase security, DHCP Server Screening1 is available to filter pirated DHCP server packets from user ports to prevent unauthorized IP address allocation.
The D-LINK DES-1210-28P is great companion when it comes to deploying VoIP because it supports Auto Voice VLAN and QoS Differentiated Services Code Point (DSCP) for VoIP applications. Auto Voice VLAN will automatically transfer voice traffic from the IP phone to the assigned VLAN to improve the operation of VoIP services. With higher priority and dedicated VLAN, this feature guarantees high-quality and secure VoIP traffic. DSCP refers to the IP packet part, allowing different service levels to be assigned to the network traffic. By using bandwidth control, the network administrator can reserve a certain bandwidth for important features that require higher bandwidth or higher priority.
The switch features a full set of L2 features including IGMP Snooping, Port Mirroring, Spanning Tree, and Link Aggregation Control Protocol (LACP). Network maintenance features include Loopback Detection and Cable Diagnostics. Loopback Detection is used to detect loops created by a particular port and automatically disconnects the affected port. Cable diagnostics are used by network administrators to quickly test the quality of metallic cables as well as determining the type of cable defect.
The D-Link DGS-1210-10P will delight its owner with SmartConsole feature, which allows administrators to easily locate several D-Link Web Smart switches in the same L2 network segment: switches are displayed on the screen and can be accessed immediately. With this utility, it's easy to configure the default Smart Switch settings, so users do not need to change their PC's IP address. With the switches found, it is also possible to make extensive changes to the configuration settings, including password changes and firmware upgrades.

Parameters and Specifications:
Basic parameters:
24x10/100Base-TX Fast Ethernet ports
2 × 1000Base-T Gigabit ports
2 × 1000Base-T/SFP combo ports
19" size, rack mount option
Auto MDI/MDIX
802.3x Flow control
Performance:
Switching capacity: 12.8Gbps
Max. redirect speed: 9.5Mp/s
MAC Address Table: 8 items
Packet Buffer: 512KB
Network:
802.3ad Link Aggregation (max. 8 groups, 8 ports per group)
Bandwidth management (by port)
IGMP v1/v2 snooping
Port Mirroring (port mirroring)
Endurance:
802.1D Spanning Tree
802.1w Rapid Spanning Tree
Loopback detection - LBD (loop detection)
Cable Diagnostics
VLAN:
802.1q VLAN
Auto Voice VLAN (10 user-defined OUI, 8 standard OUIs)
AutoSurveillance VLAN (5 user-defined OUIs)
Static VLAN (256 ports)
VLAN VID Configurable (1-4096)
QoS (Quality of Service):
802.1p QoS
4 queues per port
Priority or Weighted Round Robin (WRR)
DSCP CoS
Security:
Static MAC (128 items)
Port security (up to 64 MAC addresses per port)
Broadcast/Multicast/Unknown Unicast Storm Control
ACL (max. 50 profiles)
Management:
Web User Interface
SmartConsole utility
Password protection
Save/Restore Configuration
SNMP v1/v2
System Log (system log)
Upgradeable firmware