3Com 2924-SFP User Manual page 188

188 A B: D
PPENDIX EVICE
Table 11 Features of the Baseline Switch 2916-SFP Plus and Switch 2924-SFP Plus (continued)
Feature
SNMP Alarms and Trap Logs
SNMP Versions 1 and 2
Spanning Tree Protocol
SSL
Static MAC Entries
TCP
TFTP Trivial File Transfer Protocol
Virtual Cable Testing
VLAN Support
Web-based Management
S F
PECIFICATIONS AND EATURES
Description
The system logs events with severity codes and timestamps. Events are
sent as SNMP traps to a Trap Recipient List.
Simple Network Management Protocol (SNMP) over the UDP/IP protocol
controls access to the system.
802.1d Spanning tree is a standard Layer 2 switch requirement that
allows bridges to automatically prevent and resolve L2 forwarding loops.
Switches exchange configuration messages using specifically formatted
frames and selectively enable and disable forwarding on ports.
Secure Socket Layer (SSL) is an application-level protocol that enables
secure transactions of data through privacy, authentication, and data
integrity. It relies upon certificates and public and private keys.
MAC entries can be manually entered in the Bridging Table, as an
alternative to learning them from incoming frames. These user-defined
entries are not subject to aging, and are preserved across resets and
reboots.
Transport Control Protocol (TCP). TCP connections are defined between 2
ports by an initial synchronization exchange. TCP ports are identified by
an IP address and a 16-bit port number. Octets streams are divided into
TCP packets, each carrying a sequence number.
The device supports boot image, software and configuration
upload/download via TFTP.
VCT detects and reports copper link cabling occurrences, such as open
cables and cable shorts.
VLANs are collections of switching ports that comprise a single broadcast
domain. Packets are classified as belonging to a VLAN based on either the
VLAN tag or based on a combination of the ingress port and packet
contents. Packets sharing common attributes can be grouped in the same
VLAN.
With web-based management, the system can be managed from any
web browser. The system contains a Web Server, which serves HTML
pages, through which the system can be monitored and configured. The
system internally converts web-based input into configuration commands,
MIB variable settings and other management-related settings.