Administrator-definable port security
Port trunking of up to 8 Fast Ethernet ports
Broadcast storm control
802.3x Flow Control
802.1D Spanning Tree for redundant backup bridge Paths
SNMP, web-based management, RMON monitoring
24 built-in 10/100Mbps ports
Switch stacking configuration: 6 units per stack + 6
GBIC ports
1 open slot for 2 optional Fast Ethernet fiber or 2
Gigabit ports (stand-alone configuration)
8.8Gbps switching fabric
Auto MDI-II/MDI-X uplink for all twisted-pair ports
Supports 802.1Q VLAN, GMRP multicast, IGMP
Snooping, 802.1p Priority Queues, port mirroring
Product Description
DES-3226S
Features
Robin (WRR). You can select to use SRR to strictly enforce
your priority queues, or WRR to address bandwidth
limitations at peak time. WRR allows each queue to be
assigned a different percentage of the output port's
bandwidth, so that lower-priority queues are not denied
access to buffer space and port bandwidth.
The switch listens to IGMP (Internet Group Management
Protocol) messages to build mapping table and associate
forwarding filters. It dynamically configures the switch ports
to forward IP multicast traffic only to those ports associated
with multicast hosts.
To limit too many broadcast/multicast flooding in the
network, broadcast/multicast storm control is configured to
screen excessive traffic. 5 threshold values are available to
control the rate limit for each port. Packets are discarded if
the respective count exceeds the configured upper threshold
in a given time interval. The possible range of upper
threshold is from 0 to 255k packets per second.
This function allows you to mirror adjacent ports for the
purpose of analyzing incoming and outgoing packets where
packet patterns can be studied.
For mission critical environments with multiple switches
supporting STP, you can configure the stack of switches
with a redundant backup bridge path, so transmission and
reception of packets can be guaranteed in event of any fail-
over switch on the network.
IGMP Snooping for Broadcast Control
Broadcast Storm Control
Port Mirroring
Spanning Tree Protocol
SNMP & Web-based Management
Optional Ports (Stand-alone Configuration)
Gigabit Over Copper Twisted-pair
The switch stack can be managed from within the LAN
from an SNMP management station, and via an Internet
from any workstation. Standard-based MIBs are built-in,
allowing for monitoring and management from third-party
management platforms. Web-based management program
is built into the switch. RMON monitoring is through
built-in RMON MIBs.
If you configure the DES-3226S as a stand-alone switch,
you can install the following modules in the open slot:
- 2-port Fast Ethernet multi-mode fiber module
(100BASE-FX)
- 2-port Fast Ethernet single-mode Fiber module
(100BASE-FX)
- 2-port Gigabit fiber module (1000BASE-SX)
- 2-port Gigabit fiber module (1000BASE-LX)
- 2-port Gigabit copper module (1000BASE-T)
- GBIC module (2 ports)
The optional Gigabit copper ports provide an inexpensive
alternative solution to the fiber. Using your existing low-
cost Cat. 5 twisted-pair wires as the transmission media,
these ports allow you to instantly upgrade your servers to
Gigabit capability without requiring you
to install new, expensive fiber cables.
10/100Mbps L2 Stackable Switch
