User Manual

aDvanceD sWitching featuRes
The PowerConnect 3524 and 3548 switches support a variety of standards-based advanced switching features, allowing
a network administrator to optimize traffic flow in the network. Up to 256 VLANs are supported, helping to enable limitation
of broadcast domains as well as improved network security. Network traffic prioritization is a key requirement for deploying
emerging applications like videoconferencing and Voice-over-IP. These switches support the industry-standard IEEE
802.1p protocol and prioritize traffic based upon Layer 2 and Layer 3 information. Other advanced features include port
mirroring, dynamic link aggregation (LACP), SNTP, IP multicast support, and dedicated voice VLAN support for voice-centric
environments. These capabilities help increase deployment flexibility, better enable VoIP deployments, and help protect
networking infrastructure investments.
poWeR-oveR-etheRnet
The PowerConnect 3524P and 3548P offer Power-over-Ethernet capabilities to power network-attached devices, such as
wireless LAN access points, VoIP handsets, video cameras, and badge readers that are compliant with the IEEE 802.3af
standard. With a tremendous 470W of power available to the switch for switching and PoE operations, both switches
can provide up to 15.4W of power per port simultaneously (3548P requires EPS-470 for full 15.4W per port for all ports).
An extended power supply, the EPS-470, can be connected to the switch to provide two basic but important functions.
Whenever the switch power system is functioning properly, the EPS-470 will load share the power so that the full 15.4W
of power per port can be provided to all ports. It also serves as a redundant power supply in the unlikely event that the main
power supply should fail. With this new industry-standard PoE capability, Dell’s PowerConnect switches can connect you to
the power.
high availability
The PowerConnect 3500 series offers several high availability features to meet enterprise networking needs. The switches
can be resiliently stacked together to provide a highly available solution that can help the network survive a switch failure
within the stack. The stack of switches consists of a master and backup switch that are continuously synched together so
that a failure of the master unit or any other switch will not adversely affect the performance or connectivity of the other
stacked switches. Multiple Spanning Tree Protocol and Rapid Spanning Tree Protocol support help reduce network setup time
and improve network availability. These industry standard protocols help provide rapid reconvergence in the event of network
outages even across large networks with many VLANs.