Weidmuller SL-MOD-GW Instrukcja Użytkownika Pobierz pdf (Strona 21)

A.21

WAUS Data Products Main Line Catalogue 2013

Active Components

Simple Network Management Protocol (SNMP)

SNMP provides a framework for network management with

broad application to various network devices, software and

systems. SNMP is an easy-to-use, open, and convenient

protocol that can control a wide range of devices, so it is

widely used in the network domain.

IGMP Snooping

IGMP Snooping, i.e.Internet Group Multicast Protocol

Snooping is designed to prevent the multicast frames

spreading in the sesond layer network by building a map

between ports and multicast MAC. By following the map the

multicast frames will go directly to the destination device. At

the same time the ow of the network will be reduced.

RMON (Remote monitoring)

RMON is a standard network ow anaysis system which

allows data exchange between different network monitoring

and control systems. It is an expansion to SNMP and has

complete network error checking, planning, performance

analysis and historical functions. With its statistical results

and analysis reports, you can analyise possible failures, tune

performance and modify networks to avoid bottlenecks.

Flow Control

The ow control function of Weidmuller Ethernet switches

can not only prevent broadcast storm, but also set the ow

rate of incoming and outcoming unicast, multicast and

broadcast frames. The rate range is very wide: minimum

value 64 Kbps, maximum 100,000 Kbps for 100M ports

and 1,000,000 Kbps for 1000M ports. Flow control makes

your control over the ow rate more reliable.

Port Security

With the Port Security function enabled, a port will stop

learning new MAC addresses and only forward frames

with existing MAC addresses. If the function is disabled,

the port will continue to learn and forward messages

normally. Using this function wisely can give good results

in improving network reliability and eliminating broadcast

storms.

Alarm

Weidmuller managed switches have various alarm

functions, including port alarms, Ring alarms, loss of power

alarms and so on. Alarm functions can be congured using

a Web browser or process management software. With the

alarm status shown on the screen, the eld engineer can

take actions to deal with the alarm messages according to

their priority.

IGMP Group 1

IGMP Group 2

IGMP Group 1

IGMP Group 2

Group 1 multicast message

Group 2 multicast message

RMON enabled

Work

station

Work

station

Alarm Warning LED

Management station with

RMON application

Network

MAC address unlearnt

MAC address learnt

Inform

SNMP agent SNMP manager

Unicast messages

Multicast messages

Broadcast messages

Flow controlled

messages

Managed Industrial Ethernet Switches

Active Components | Managed Industrial Ethernet Switches

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