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144 Industrial Ethernet Wireless LAN RLM Manager, CP 1515 Manager
C79000-G8976-C171-01
11.(Optional ly) Modify the configurations of all your other Access Points
RLMs accordingly. We recommend that you use different frequencies for
neighboring Radio Link Modules, as described in Dual Channel
Configuration (page 138) or Multiple-Channel Configuration (page 140).
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In situations where the connection of the Access Point RLM to the rest of
the Ethernet network fails, typically as a result of a broken cable connection
or network error, the Ethernet failure might disrupt regular network
communication for (roaming) wireless stations.

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If the wireless connection however is still intact, the wireless station would
not roam to another Access Point RLM, since its radio migh t still interpret its
“physical” connection to the Access Point RLM as “good” or “acceptable”.
The Ethernet link integrity feature is a high-end solution that enables you to
resolve this type of network failures, as it allows Access Points RLMs to:
• Detect any disruption in its connection to network services by testing
the link between the RLM and a maximum of three IP hosts.
• Reconnect automatically to another Access Point RLM in situations
where disruptions occur that are not related to poor radio
communications.