D-Link xStack DES-3552 Specifications page 2

Advanced Standards-based
Enterprise Features
+ 802.1p Priority (8 Queues)
+ L2/L3/L4 QoS
+ 802.1X (Port/MAC-based)
+ 802.1Q VLANs (port-based, up to 4K
Groups)
+ MAC-based VLAN
+ MAC-based VLAN
+ Selective Q-in-Q
+ IGMP Snooping v1/2/3
+ MLD Snooping v1/2
VoIP Deployment
+ Auto Voice VLAN
+ Highest priority for VoIP service
b u s i n e s s
Web Smart 24/48-Port Switches with 2GbE and
2 Combo SFP Slots
xStack Integration
The xStack DES-3528/3552 provides D-Link Single
IP Management Technology (SIM), allowing a set of
switches to be managed by a single IP, regardless of
geographical locations. Traffic running among units in
this virtual stack goes through the full-duplex Gigabit
interfaces and your usual network wires, doing away
with the costly and cumbersome stacking cables.
Without any stacking cable, cable distance barrier,
and physical stacking limitations, your stack can
comprise of units that are located anywhere on the
network, minimizing the impact of any single point
of failure. Furthermore, multiple xStack switches can
be configured, monitored and maintained from any
workstation running a web browser through one
unique IP address. The stack is managed as a single
object, with all units identified by a single IP address.
With Tree View, you can obtain an overview of the
members of the stack and a network topology showing
the locations of the units and their link information. This
provides simple yet powerful web-based management
without expensive SNMP network management
software. You can add up to 32 switches per stack and
are not limited to any specific D-Link SIM models.
Additionally, the two 10/100/1000BASE-T ports on the
back panel of the DES-3528/3552 are designed for flexible
dual usage. They can be used either as stacking ports with
4Gbps bidirectional stacking bandwidth, or can simply
be used as copper Gigabit uplinks. Physical stacking
capability allows administrators to add up to eight switch
units per stack1 on a stackable expansion basis. The
DES-3528/3552 offers an attractive stackable switch
alternative to the expensive chassis-based solution.
Voice and Video Applications
For today' s businesses, having voice, data and video on
the same network is common practice. This challenge
is met by the DES-3528/3552, which supports 802.1p
D E S -3 52 8/ 3 5 52
with eight queues. The administrator can designate
the priority of the traffic based on a variety of means
including IP or MAC address, so that voice data is always
clear and jitter-free. Video traffic can also be assigned
with the same priority. In addition, the DES-3528/3552
provides IGMP Snooping or MLD Snooping, which
allows the forwarding of multicast packets such as
streaming audio and video, without increasing network
broadcast congestion. By snooping IGMP registration
information within a frame, a list of workstations in
the multicast group is created. This list then allows
the switch to intelligently forward packets to only the
appropriate member workstations. In conjunction with
the 802.1Q VLANs, Quality of Service and security can be
achieved on a network infused with data traffic.
For other multimedia-on-demand applications,
such as IPTV deployments, the DES-3528/3552
provides advanced features for easy video streaming
management. For example, this xStack family supports
per port multicast stream control, which allows a
service provider to assign limited multicast addresses
per port. This means it can act as a security control that
pre-configures channels for each subscriber on a port
level to prevent unauthorized hosts from receiving traffic
for a multicast group they did not join. DES-3528/3552
also supports IGMP multicast VLAN, which eliminates
duplicate multicast traffic being sent to clients in different
VLANs, thus removing bottlenecks in the uplink port.
Ease of Management
The DES-3528/3552 supports SNMP v1/2c/3 so traps
can be set on abnormal events and information can
be polled to maximize the productivity of the network.
Other standard management features are also supported
including RMON and IEEE 802.1D/w/s spanning tree.
User interface includes an intuitive web-based browser
graphic interface or industry-standard CLI, either of which
can be protected through SSL or SSH encryptions.