Example: Configuring one ring
Network configuration
As shown in Figure 34, perform the following tasks to eliminate loops on the network:
Configure the ring as ERPS ring 1.
Configure VLAN 100 as the control VLAN for ERPS ring 1.
Configure VLANs 1 to 30 as the protected VLANs for ERPS ring 1.
Configure Device A as the owner node, FortyGigE 1/0/1 as ERPS ring member port 0 and the RPL port, and as ERPS ring member port 1.
Configure Device B as the neighbor node, FortyGigE 1/0/1 as ERPS ring member port 0 and the RPL port, and as ERPS ring member port 1.
Configure Device C and Device D as normal nodes, FortyGigE 1/0/1 as ERPS ring member port 0, and as ERPS ring member port 1.
Figure 34: Network diagram
Procedure
![[IMPORTANT: ]](images/important.png) | IMPORTANT: By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface. | |
Configure Device A.
# Create VLANs 1 to 30, map these VLANs to MSTI 1, and activate the MST region configuration.
<DeviceA> system-view [DeviceA] vlan 1 to 30 [DeviceA] stp region-configuration [DeviceA-mst-region] instance 1 vlan 1 to 30 [DeviceA-mst-region] active region-configuration [DeviceA-mst-region] quit
# Set the link state change suppression interval to 0 seconds on FortyGigE 1/0/1.
[DeviceA] interface [DeviceA-FortyGigE1/0/1] link-delay 0
# Disable the spanning tree feature on the port.
[DeviceA-FortyGigE1/0/1] undo stp enable
# Configure the port as a trunk port and assign it to VLANs 1 to 30.
[DeviceA-FortyGigE1/0/1] port link-type trunk [DeviceA-FortyGigE1/0/1] port trunk permit vlan 1 to 30 [DeviceA-FortyGigE1/0/1] quit
# Configure FortyGigE 1/0/2 in the same way is configured.
[DeviceA] interface fortygige 1/0/2 [DeviceA-FortyGigE1/0/2] link-delay 0 [DeviceA-] undo stp enable [DeviceA-FortyGigE1/0/2] port link-type trunk [DeviceA-FortyGigE1/0/2] port trunk permit vlan 1 to 30 [DeviceA-FortyGigE1/0/2] quit
# Create ERPS ring 1.
[DeviceA] erps ring 1
# Configure ERPS ring member ports.
[DeviceA-erps-ring1] port0 interface fortygige 1/0/1 [DeviceA-erps-ring1] port1 interface fortygige 1/0/2
# Enable R-APS packets to carry ring ID in the destination MAC address.
[DeviceA-erps-ring1] r-aps ring-mac
# Create ERPS instance 1.
[DeviceA-erps-ring1] instance 1
# Configure the node role.
[DeviceA-erps-ring1-inst1] node-role owner rpl port0
# Configure the control VLAN.
[DeviceA-erps-ring1-inst1] control-vlan 100
# Configure the protected VLANs.
[DeviceA-erps-ring1-inst1] protected-vlan reference-instance 1
# Enable ERPS for instance 1.
[DeviceA-erps-ring1-inst1] instance enable [DeviceA-erps-ring1-inst1] quit [DeviceA-erps-ring1] quit
# Enable CFD, and create a level-5 MD named MD_A.
[DeviceA] cfd enable [DeviceA] cfd md MD_A level 5
# Create Ethernet service instance 1, in which the MA is identified by a VLAN and serves VLAN 1.
[DeviceA] cfd service-instance 1 ma-id vlan-based md MD_A vlan 1
# Configure a MEP list in Ethernet service instance 1, create outward-facing MEP 1001 in Ethernet service instance 1, and enable CCM sending on FortyGigE 1/0/1.
[DeviceA] cfd meplist 1001 1002 service-instance 1 [DeviceA] interface fortygige 1/0/1 [DeviceA-FortyGigE1/0/1] cfd mep 1001 service-instance 1 outbound [DeviceA-FortyGigE1/0/1] cfd cc service-instance 1 mep 1001 enable [DeviceA-] quit
# Create Ethernet service instance 2, in which the MA is identified by a VLAN and serves VLAN 2.
[DeviceA] cfd service-instance 2 ma-id vlan-based md MD_A vlan 2
# Configure a MEP list in Ethernet service instance 2, create outward-facing MEP 2001 in Ethernet service instance 1, and enable CCM sending on FortyGigE 1/0/2.
[DeviceA] cfd meplist 2001 2002 service-instance 2 [DeviceA] interface fortygige 1/0/2 [DeviceA-FortyGigE1/0/2] cfd mep 2001 service-instance 2 outbound [DeviceA-FortyGigE1/0/2] cfd cc service-instance 2 mep 2001 enable [DeviceA-FortyGigE1/0/2] quit
# Create track entry 1 and associate it with the CC function of CFD for MEP 1001 in Ethernet service instance 1.
[DeviceA] track 1 cfd cc service-instance 1 mep 1001
# Associate FortyGigE 1/0/1 with track entry 1 and bring up the port.
[DeviceA] interface fortygige 1/0/1 [DeviceA-] port erps ring 1 instance 1 track 1 [DeviceA-FortyGigE1/0/1] undo shutdown [DeviceA-FortyGigE1/0/1] quit
# Create track entry 2 and associate it with the CC function of CFD for MEP 2001 in Ethernet service instance 2.
[DeviceA] track 2 cfd cc service-instance 2 mep 2001
# Associate FortyGigE 1/0/2 with track entry 2 and bring up the port.
[DeviceA] interface fortygige 1/0/2 [DeviceA-FortyGigE1/0/2] port erps ring 1 instance 1 track 2 [DeviceA-] undo shutdown [DeviceA-FortyGigE1/0/2] quit
# Enable ERPS.
[DeviceA] erps enable
Configure Device B.
# Create VLANs 1 to 30, map these VLANs to MSTI 1, and activate the MST region configuration.
<DeviceB> system-view [DeviceB] vlan 1 to 30 [DeviceB] stp region-configuration [DeviceB-mst-region] instance 1 vlan 1 to 30 [DeviceB-mst-region] active region-configuration [DeviceB-mst-region] quit
# Set the link state change suppression interval to 0 seconds on FortyGigE 1/0/1.
[DeviceB] interface fortygige 1/0/1 [DeviceB-] link-delay 0
# Disable the spanning tree feature on the port.
[DeviceB-FortyGigE1/0/1] undo stp enable [DeviceB-FortyGigE1/0/1] port link-type trunk
# Configure the port as a trunk port and assign it to VLANs 1 to 30.
[DeviceB-FortyGigE1/0/1] port trunk permit vlan 1 to 30 [DeviceB-FortyGigE1/0/1] quit
# Configure FortyGigE 1/0/2 in the same way FortyGigE 1/0/1 is configured.
[DeviceB] interface fortygige 1/0/2 [DeviceB-FortyGigE1/0/2] link-delay 0 [DeviceB-FortyGigE1/0/2] undo stp enable [DeviceB-] port link-type trunk [DeviceB-FortyGigE1/0/2] port trunk permit vlan 1 to 30 [DeviceB-FortyGigE1/0/2] quit
# Create ERPS ring 1.
[DeviceB] erps ring 1
# Configure ERPS ring member ports.
[DeviceB-erps-ring1] port0 interface fortygige 1/0/1 [DeviceB-erps-ring1] port1 interface
# Enable R-APS packets to carry ring ID in the destination MAC address.
[DeviceB-erps-ring1] r-aps ring-mac
# Create ERPS instance 1.
[DeviceB-erps-ring1] instance 1
# Configure the node role.
[DeviceB-erps-ring1-inst1] node-role neighbor rpl port0
# Configure the control VLAN.
[DeviceB-erps-ring1-inst1] control-vlan 100
# Configure the protected VLANs.
[DeviceB-erps-ring1-inst1] protected-vlan reference-instance 1
# Enable ERPS for instance 1.
[DeviceB-erps-ring1-inst1] instance enable [DeviceB-erps-ring1-inst1] quit [DeviceB-erps-ring1] quit
# Enable CFD, and create a level-5 MD named MD_A.
[DeviceB] cfd enable [DeviceB] cfd md MD_A level 5
# Create Ethernet service instance 1, in which the MA is identified by a VLAN and serves VLAN 1.
[DeviceB] cfd service-instance 1 ma-id vlan-based md MD_A vlan 1
# Configure a MEP list in Ethernet service instance 1, create outward-facing MEP 1002 in Ethernet service instance 1, and enable CCM sending on .
[DeviceB] cfd meplist 1001 1002 service-instance 1 [DeviceB] interface fortygige 1/0/1 [DeviceB-FortyGigE1/0/1] cfd mep 1002 service-instance 1 outbound [DeviceB-FortyGigE1/0/1] cfd cc service-instance 1 mep 1002 enable [DeviceB-FortyGigE1/0/1] quit
# Create Ethernet service instance 3, in which the MA is identified by a VLAN and serves VLAN 3.
[DeviceB] cfd service-instance 3 ma-id vlan-based md MD_A vlan 3
# Configure a MEP list in Ethernet service instance 3, create outward-facing MEP 3002 in Ethernet service instance 1, and enable CCM sending on FortyGigE 1/0/2.
[DeviceB] cfd meplist 3001 3002 service-instance 3 [DeviceB] interface fortygige 1/0/2 [DeviceB-] cfd mep 3002 service-instance 3 outbound [DeviceB-FortyGigE1/0/2] cfd cc service-instance 3 mep 3002 enable [DeviceB-FortyGigE1/0/2] quit
# Create track entry 1 and associate it with the CC function of CFD for MEP 1002 in Ethernet service instance 1.
[DeviceB] track 1 cfd cc service-instance 1 mep 1002
# Associate FortyGigE 1/0/1 with track entry 1 and bring up the port.
[DeviceB] interface fortygige 1/0/1 [DeviceB-FortyGigE1/0/1] port erps ring 1 instance 1 track 1 [DeviceB-FortyGigE1/0/1] undo shutdown [DeviceB-FortyGigE1/0/1] quit
# Create track entry 3 and associate it with the CC function of CFD for MEP 3002 in Ethernet service instance 3.
[DeviceB] track 3 cfd cc service-instance 3 mep 3002
# Associate FortyGigE 1/0/2 with track entry 3 and bring up the port.
[DeviceB] interface [DeviceB-FortyGigE1/0/2] port erps ring 1 instance 1 track 2 [DeviceB-FortyGigE1/0/2] undo shutdown [DeviceB-FortyGigE1/0/2] quit
# Enable ERPS.
[DeviceB] erps enable
Configure Device C.
# Create VLANs 1 to 30, map these VLANs to MSTI 1, and activate the MST region configuration.
<DeviceC> system-view [DeviceC] vlan 1 to 30 [DeviceC] stp region-configuration [DeviceC-mst-region] instance 1 vlan 1 to 30 [DeviceC-mst-region] active region-configuration [DeviceC-mst-region] quit
# Set the link state change suppression interval to 0 seconds on .
[DeviceC] interface fortygige 1/0/1 [DeviceC-FortyGigE1/0/1] link-delay 0
# Disable the spanning tree feature on the port.
[DeviceC-FortyGigE1/0/1] undo stp enable
# Configure the port as a trunk port and assign it to VLANs 1 to 30.
[DeviceC-FortyGigE1/0/1] port link-type trunk [DeviceC-FortyGigE1/0/1] port trunk permit vlan 1 to 30 [DeviceC-FortyGigE1/0/1] quit
# Configure in the same way FortyGigE 1/0/1 is configured.
[DeviceC] interface fortygige 1/0/2 [DeviceC-] link-delay 0 [DeviceC-FortyGigE1/0/2] undo stp enable [DeviceC-FortyGigE1/0/2] port link-type trunk [DeviceC-] port trunk permit vlan 1 to 30 [DeviceC-FortyGigE1/0/2] quit
# Create ERPS ring 1.
[DeviceC] erps ring 1
# Configure ERPS ring member ports.
[DeviceC-erps-ring1] port0 interface fortygige 1/0/1 [DeviceC-erps-ring1] port1 interface fortygige 1/0/2
# Enable R-APS packets to carry ring ID in the destination MAC address.
[DeviceC-erps-ring1] r-aps ring-mac
# Create ERPS instance 1.
[DeviceC-erps-ring1] instance 1
# Configure the control VLAN.
[DeviceC-erps-ring1-inst1] control-vlan 100
# Configure the protected VLANs.
[DeviceC-erps-ring1-inst1] protected-vlan reference-instance 1
# Enable ERPS for instance 1.
[DeviceC-erps-ring1-inst1] instance enable [DeviceC-erps-ring1-inst1] quit [DeviceC-erps-ring1] quit
# Enable CFD, and create a level-5 MD named MD_A.
[DeviceC] cfd enable [DeviceC] cfd md MD_A level 5
# Create Ethernet service instance 3, in which the MA is identified by a VLAN and serves VLAN 3.
[DeviceC] cfd service-instance 3 ma-id vlan-based md MD_A vlan 3
# Configure a MEP list in Ethernet service instance 3, create outward-facing MEP 3001 in Ethernet service instance 3, and enable CCM sending on GigabitEthernet 1/0/2.
[DeviceC] cfd meplist 3001 3002 service-instance 3 [DeviceC] interface gigabitethernet 1/0/2 [DeviceC-GigabitEthernet1/0/2] cfd mep 3001 service-instance 3 outbound [DeviceC-GigabitEthernet1/0/2] cfd cc service-instance 3 mep 3001 enable [DeviceC-GigabitEthernet1/0/2] quit
# Create Ethernet service instance 4, in which the MA is identified by a VLAN and serves VLAN 4.
[DeviceC] cfd service-instance 4 ma-id vlan-based md MD_A vlan 4
# Configure a MEP list in Ethernet service instance 4, create outward-facing MEP 4001 in Ethernet service instance 4, and enable CCM sending on FortyGigE 1/0/2.
[DeviceC] cfd meplist 4001 4002 service-instance 4 [DeviceC] interface gigabitethernet 1/0/1 [DeviceC-GigabitEthernet1/0/1] cfd mep 4001 service-instance 4 outbound [DeviceC-GigabitEthernet1/0/1] cfd cc service-instance 4 mep 4001 enable [DeviceC-GigabitEthernet1/0/1] quit
# Create track entry 1 and associate it with the CC function of CFD for MEP 3001 in Ethernet service instance 3.
[DeviceC] track 1 cfd cc service-instance 3 mep 3001
# Associate FortyGigE 1/0/2 with track entry 1 and bring up the port.
[DeviceC] interface [DeviceC-FortyGigE1/0/2] port erps ring 1 instance 1 track 1 [DeviceC-FortyGigE1/0/2] undo shutdown [DeviceC-FortyGigE1/0/2] quit
# Create track entry 2 and associate it with the CC function of CFD for MEP 4001 in Ethernet service instance 4.
[DeviceC] track 2 cfd cc service-instance 4 mep 4001
# Associate FortyGigE 1/0/1 with track entry 3 and bring up the port.
[DeviceC] interface fortygige 1/0/1 [DeviceC-FortyGigE1/0/1] port erps ring 1 instance 1 track 2 [DeviceC-FortyGigE1/0/1] undo shutdown [DeviceC-FortyGigE1/0/1] quit
# Enable ERPS.
[DeviceC] erps enable
Configure Device D.
# Create VLANs 1 to 30, map these VLANs to MSTI 1, and activate the MST region configuration.
<DeviceD> system-view [DeviceD] vlan 1 to 30 [DeviceD] stp region-configuration [DeviceD-mst-region] instance 1 vlan 1 to 30 [DeviceD-mst-region] active region-configuration [DeviceD-mst-region] quit
# Set the link state change suppression interval to 0 seconds on FortyGigE 1/0/1.
[DeviceD] interface [DeviceD-FortyGigE1/0/1] link-delay 0
# Disable the spanning tree feature on the port.
[DeviceD-FortyGigE1/0/1] undo stp enable
# Configure the port as a trunk port and assign it to VLANs 1 to 30.
[DeviceD-FortyGigE1/0/1] port link-type trunk [DeviceD-FortyGigE1/0/1] port trunk permit vlan 1 to 30 [DeviceD-FortyGigE1/0/1] quit
# Configure FortyGigE 1/0/2 in the same way FortyGigE 1/0/1 is configured.
[DeviceD] interface fortygige 1/0/2 [DeviceD-FortyGigE1/0/2] link-delay 0 [DeviceD-FortyGigE1/0/2] undo stp enable [DeviceD-FortyGigE1/0/2] port link-type trunk [DeviceD-FortyGigE1/0/2] port trunk permit vlan 1 to 30 [DeviceD-FortyGigE1/0/2] quit
# Create ERPS ring 1.
[DeviceD] erps ring 1
# Configure ERPS ring member ports.
[DeviceD-erps-ring1] port0 interface fortygige 1/0/1 [DeviceD-erps-ring1] port1 interface fortygige 1/0/2
# Enable R-APS packets to carry ring ID in the destination MAC address.
[DeviceD-erps-ring1] r-aps ring-mac
# Create ERPS instance 1.
[DeviceD-erps-ring1] instance 1
# Configure the control VLAN.
[DeviceD-erps-ring1-inst1] control-vlan 100
# Configure the protected VLANs.
[DeviceD-erps-ring1-inst1] protected-vlan reference-instance 1
# Enable ERPS for instance 1.
[DeviceD-erps-ring1-inst1] instance enable [DeviceD-erps-ring1-inst1] quit [DeviceD-erps-ring1] quit
# Enable CFD, and create a level-5 MD named MD_A.
[DeviceD] cfd enable [DeviceD] cfd md MD_A level 5
# Create Ethernet service instance 2, in which the MA is identified by a VLAN and serves VLAN 2.
[DeviceD] cfd service-instance 2 ma-id vlan-based md MD_A vlan 2
# Configure a MEP list in Ethernet service instance 2, create outward-facing MEP 2002 in Ethernet service instance 2, and enable CCM sending on FortyGigE 1/0/2.
[DeviceD] cfd meplist 2001 2002 service-instance 2 [DeviceD] interface fortygige 1/0/2 [DeviceD-FortyGigE1/0/2] cfd mep 2002 service-instance 2 outbound [DeviceD-FortyGigE1/0/2] cfd cc service-instance 2 mep 2002 enable [DeviceD-FortyGigE1/0/2] quit
# Create Ethernet service instance 4, in which the MA is identified by a VLAN and serves VLAN 4.
[DeviceD] cfd service-instance 4 ma-id vlan-based md MD_A vlan 4
# Configure a MEP list in Ethernet service instance 4, create outward-facing MEP 4002 in Ethernet service instance 4, and enable CCM sending on FortyGigE 1/0/1.
[DeviceD] cfd meplist 4001 4002 service-instance 4 [DeviceD] interface fortygige 1/0/1 [DeviceD-] cfd mep 4002 service-instance 4 outbound [DeviceD-FortyGigE1/0/1] cfd cc service-instance 4 mep 4002 enable [DeviceD-FortyGigE1/0/1] quit
# Create track entry 1 and associate it with the CC function of CFD for MEP 2002 in Ethernet service instance 2.
[DeviceD] track 1 cfd cc service-instance 2 mep 2002
# Associate FortyGigE 1/0/2 with track entry 1 and bring up the port.
[DeviceD] interface fortygige 1/0/2 [DeviceD-FortyGigE1/0/2] port erps ring 1 instance 1 track 1 [DeviceD-] undo shutdown [DeviceD-FortyGigE1/0/2] quit
# Create track entry 2 and associate it with the CC function of CFD for MEP 4002 in Ethernet service instance 4.
[DeviceD] track 2 cfd cc service-instance 4 mep 4002
# Associate FortyGigE 1/0/1 with track entry 2 and bring up the port.
[DeviceD] interface [DeviceD-FortyGigE1/0/1] port erps ring 1 instance 1 track 2 [DeviceD-FortyGigE1/0/1] undo shutdown [DeviceD-FortyGigE1/0/1] quit
# Enable ERPS.
[DeviceD] erps enable
Verifying the configuration
# Display information about ERPS instance 1 for Device A.
[DeviceA] display erps detail ring 1 Ring ID : 1 Port0 : FortyGigE1/0/1 Port1 : FortyGigE1/0/2 Subring : No Default MAC : No Instance ID : 1 Node role : Owner Node state : Idle Connect(ring/instance): - Control VLAN : 100 Protected VLAN : Reference-instance 1 Guard timer : 500 ms Hold-off timer : 0 ms WTR timer : 5 min Revertive operation : Revertive Enable status : Yes, Active status : Yes R-APS level : 7 Port PortRole PortStatus ---------------------------------------------------------------------------- Port0 RPL Block Port1 Non-RPL Up
The output shows the following information:
Device A is the owner node.
The ERPS ring is in idle state.
The RPL port is blocked.
The non-RPL port is unblocked.