ProSoft Technology RLX2-IHW User Manual page 97

Field
IGMP Multicast Filtering
Default Propagation Action
IGMP Query Generation
IGMP Query Interval
Multicast State Count
STP Settings
Field
Enable Spanning Tree
Ethernet Edge Port
ProSoft Technology, Inc.
November 3, 2016
Description
Disabling filtering will cause the radio flood multicast packets to all ports.
Determines how to handle multicast addresses that are not in the radio's
address table. Choices are Flood or Filter.
Enables or disables query generation from this radio.
Number of seconds between queries (if not pre-empted by a query from
another device)
Number of queries generated before a device is removed from the multicast
group on this radio if no response is received.
Description
Spanning Tree is enabled when this box is checked. Without spanning tree,
redundant connections might exist if multiple radio links are created in parallel
with each other. Redundant connections are blocked only if spanning tree is
enabled. Additionally, spanning tree is used to flush the Ethernet switch table
when the network topology changes as described in the section on Automatic
Parent Selection.
All RLX2 models support Rapid Spanning Tree (RSTP), and will default to this
mode when enabled.
The recommended setting for spanning tree is "Enabled".
Because RSTP is an active protocol, it depends on communication between
RSTP devices. If no RSTP device is connected to the radio's Ethernet port, the
handshake cannot take place. In this case RSTP reverts to STP. This means that
the Ethernet port will be forced to adhere to the timer based transition
protocol of STP.
Therefore on network transitions and power up, communications will not be
allowed over the Ethernet port for 30 to 45 seconds. This setting is an
indication that no redundant connections exist out this port and
communication can immediately be allowed. If for some reason a BPDU is
received on this port, the RSTP protocol will negotiate properly and handle any
possible redundant paths.
The recommended setting for Ethernet Edge Port is "Enabled".
RLX2 Industrial Hotspot Series
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