GE GE-DSH-73, Руководство пользователя

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Chapter 5: Web-Based Management
114 GE-DSH-73/DSH-82 and DSH-82-PoE User Manual
Figure 5-58: IGMP Configuration interface
This page includes the following fields:
Object Description
IGMP Protocol: Enable or disable the IGMP protocol.
IGMP Query:
Enable or disable the IGMP query function. The IGMP query
information will be displayed in IGMP status section.
X-Ring
X-Ring provides a faster redundant recovery than Spanning Tree topology. The action
is similar to STP or RSTP, but the algorithms between them are not the same. In the X-
Ring topology, every switch should be enabled with X-Ring function and two ports
should be assigned as the member ports in the ring. Only one switch in the X-Ring
group would be set as the master switch that one of its two member ports would be
blocked, called backup port, and another port is called working port. Other switches
in the X-Ring group are called working switches and their two member ports are
called working ports. When the failure of network connection occurs, the backup port
of the master switch (Ring Master) will automatically become a working port to
recover from the failure.
X-Ring Application
The Industrial Switch supports the X-Ring protocol that can help the network system
to recovery from network connection failure within 20ms or less, and make the
network system more reliable. The X-Ring algorithm is similar to spanning tree
protocol (STP) algorithm but its recovery time is faster than STP. The following figure is
a sample X-Ring application.