Chapter 2 Performance Specifications
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Based on DT-Ring, DT-Ring+ realizes standby between two rings and determines the
ring and port state according to the standby device ID ensuring the redundant network
does not form ring.
RSTP
RSTP and STP offer network redundancy protection for the switch network. RSTP can
realize all the functions of STP, and additional reduce the delay from block to forward,
resuming the network ASAP.
ACL
SICOM3024SM offers ACL
（
Access Control List
）
function to define the access rules
by using the protocols of source or object MAC addresses. It can limit the network
traffic, increases the networking performance and control the communication flow.
Alarm Output
Alarm is significant when it is used for real-time transmission of device alarm output.
SICOM3024SM offers the alarming functions for port and ring. Through management
software, all the alarming functions can be enabled or disabled. The alarming
information is shown from management interface.
SNMP
SNMP
（
Simple
Network
Management
Protocol
）
offers frame structure for low
level network management. SNMP protocol is used so widely that many kinds of
networking devices, software and system employ it. It is easy to realize, open and free,
and can be used to control various devices.
RMON
RMON is a standard monitoring regulation to switch the network monitoring data
between network monitor and console system. It offers more selections for network
operator to use the suitable console and network monitor for special requirements. It is
also the expansion to SNMP functions and is specially useful for monitoring and
managing LAN. The purpose of developing RMON is to provide statistic result of
information flow and analyze network parameters so as to work out a comprehensive
diagnoses, plan and regulation.
By RMON, you can operate among multiple manufacturers for SNMP management
and monitoring agent. What’s more, it can offer a standard for a group of MIB to
