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116 Rockwell Automation Publication 1783-UM007I-EN-P - December 2017
Chapter 3 Configure Switch Features
Table 39 - Config DLR Fields
Field Description
Mode Choose one of these modes:
• Disabled—The DLR feature is disabled on the switch.
• Node—The switch is a ring node.
• Supervisor—The switch is a ring supervisor.
Default: Disabled
Port1 Choose a ring port. By default, if the switch is the ring supervisor, port 1 is node 1 on the ring, and port 2 is blocked.
Port2 Choose a ring port.
Supervisor Settings
Role (Precedence) Choose a role to assign to the ring supervisor that corresponds to a predefined precedence value. The switch transmits the precedence value in beacon
frames and uses it to determine the active ring supervisor when multiple supervisors are configured. A higher value means higher precedence. When two
DLR supervisors have the same precedence, the device with the numerically highest MAC ID becomes the active supervisor.
Valid values:
• None—0
• Primary—255
• Backup 1—100
• Backup 2—90
• Backup 3—80
• Custom—Type a value from 0…255
Beacon Interval Type an interval for the supervisor to transmit beacon frames.
Valid values: 200…100,000 µs
Default: 400 µs.
Beacon Timeout Type the amount of time ring nodes wait before timing out in the absence of received beacon messages.
Valid values: 200…500,000 µs
Default: 1960 µs
DLR VLAN Id Type the VLAN ID for sending DLR protocol management frames.
Valid values: 0…4095
Default: 0 (no VLAN ID is used)
IMPORTANT: DLR ports function only as access ports and not trunk ports.
Redundant Gateway Settings
Enable Redundant
Gateway Check the checkbox to enable the configuration of redundant gateways. The configuration fields are available only after you enable the feature.
Default: Disabled
Role (Precedence) Choose a role to assign to the redundant gateway that corresponds to a predefined precedence value. The switch transmits the precedence value is
advertise messages and is used to select the redundant gateway when multiple redundant gateways are configured. A higher value means higher
precedence. When two DLR redundant gateways have the same precedence, the device with the numerically highest MAC ID becomes the redundant
gateway.
Valid values:
• None—0
• Primary—255
• Backup 1—100
• Backup 2—90
• Backup 3—80
• Custom—Type a value from 0…255
Advertise Interval Type the time interval for the gateway to transmit advertise messages.
Valid values: 200…100,000 µs
Default: 2000 µs
Advertise Timeout Type the duration of time for nodes to wait before timing out in the absence of received advertise messages.
Valid values: 200…500,000 µs
Default: 5000 µs
Learning Update Check the checkbox to enable learning update messages.
Default: Enabled
Uplink Ports Check the checkbox for each uplink port on which to enable redundant gateway.