4.6 ERPS Configuration

The ERPS instances are configured on the ERPS Configuration page. To configure ERPS, go to Configuration > ERPS . The ERPS configuration page is displayed.
Figure 4-25. ERPS Configuration
To configure EPRS, click the + icon at the bottom right corner. The ERPS Configuration options are displayed.
Figure 4-26. ERPS Configuration Table
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The list of configuration parameters are as follows:

  • Configuration:
    • ERPS #: The ID of ERPS. The allowed value is from 1:64.
    • Version: ERPS protocol version. v1 and v2 are supported.
    • Type: Type of ring. The following are the possible values:
      • Major: ERPS major ring (G.8001-2016, clause 3.2.39)
      • Sub: ERPS sub-ring (G.8001-2016, clause 3.2.66)
      • InterSub: ERPS sub-ring on an interconnection node (G.8001-2016, clause 3.2.66)
    • VC: Controls whether to use a Virtual Channel with a sub-ring
    • Interconnect Instance: For a sub-ring on an interconnection node, this must refer the instance ID of the ring to which this sub-ring is connected.
    • Interconnect Prop: Controls whether the ring referenced by Interconnect Instance shall propagate R-APS flush PDUs whenever this sub-ring's topology changes.
    • Ring ID: The Ring ID is used. Along with the control VLAN, this is used to identify R-APS PDUs as belonging to a particular ring.
    • Node ID: The Node ID is used inside the R-APS specific PDU to uniquely identify this node (switch) on the ring
    • Level: MD/MEG Level of R-APS PDUs that are transmitted
    • Control VLAN: The VLAN on which R-APS PDUs are transmitted and received on the ring ports
    • Control PCP: The PCP value used in the VLAN tag of the R-APS PDUs
    • Rev: Revertive (true) or Non-Revertive (false) mode
    • Guard: Guard time in ms. The valid range is 10 ms–2000 ms
    • WTR: Wait-to-Restore time in seconds. Valid range 1s–720s
    • Hold Off: Hold off time in ms. Value is rounded down to 100 ms precision. Valid range is 0 ms–10000 ms.
    • Enable: The administrative state of this ERPS. Check to make it function normally and uncheck to make it stop functioning.
  • Signal Fail Trigger:
    • Type: Selects whether Signal Fail (SF) comes from the link state of a given interface or from a Down-MEP.
    • Domain, Service, MEPID: Identification of the MEP instance to provide SF, if Type is MEP.
  • Protected VLANs: VLANs, which are protected by this ring instance. At least one VLAN must be protected. Specify as a comma-separated list of VLAN numbers or VLAN ranges. For example, 1, 4, 7, 30–70.
  • Ring Protection Link:
    • RPL Mode: The following Ring Protection Link modes are available:
      • None: This switch does not have the RPL port in the ring
      • Owner: This switch is RPL owner for the ring (G.8001-2016, clause 3.2.61)
      • Neighbor: This switch is RPL neighbor for the ring (G.8001-2016, clause 3.2.60)
    • RPL Port: Allows you to select the east (port 0) or west (port 1) as the RPL block. This is not used if the RPL mode is None.