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Introduction
All of the ports can operate in either half-duplex or full-duplex mode. Full-
duplex operation, allowing the port to transmit and receive at the same time,
can double overall network bandwidth in many applications.
Switching
The DES-2212 uses store-and-forward technology to bridge packets between
ports. Forwarding and filtering occurs at full “wire speed,” 148,800 packets
per second (pps) for Fast Ethernet, and 14,880 pps for Ethernet. It has 2MB
of buffer memory for the 10Mbps ports, and 4MB for the 100Mbps ports.
The switch automatically learns Ethernet (MAC) addresses and stores them in
a forwarding table. In addition, it also supports static filtering, allowing
network administrators to define custom filters for network security or other
purposes.
The switch supports the IEEE 802.1d Spanning Tree Protocol, allowing you
to design your network with redundant bridge links.
Management
You can use any network management software supporting SNMP (the
Simple Network Management Protocol) to manage the DES-2212, including
D-Link’s Windows-based D-View management system. The DES-2212’s
internal intelligent management agent supports several standard SNMP
MIBs, along with its own proprietary management information base.
SNMP management can be done in-band, over the Ethernet or Fast Ethernet
network, or out-of-band, over the DES-2212’s RS-232 console port, using
SLIP (the Serial Line Internet Protocol).
In addition, you can manage the switch with an easy-to-use console interface,
either directly over the RS-232 console port, or over the network using the
Telnet protocol.
The management agent’s software is stored in Flash ROM, allowing easy
upgrade over the network.