Maipu Administration Guide

Configure ERPS Basic Functions

Network Requirements

All Devices are in one L2 network.
All devices enable ERPS, and adopt ERPS to cut the link rings in the network.

Network Topology

Configure ERPS basic functions

Figure 11-1 Configure ERPS basic functions

Configuration Steps

Step 1: Configure vlan and port link type.

#On Device1–Device4, create VLAN2, VLAN100~VLAN200 respectively, and configure the link type of ports gigabitethernet0/1 and gigabitethernet0/2 as Trunk, permitting the services of VLAN2, vlan100~VLAN200 to pass.

Device1#configure terminal
Device1(config)#vlan 2,100-200
Device1(config)# interface gigabitethernet 0/1
Device1(config-if-gigabitethernet0/1)#shutdown
Device1(config-if-gigabitethernet0/1)# switchport mode trunk
Device1(config-if-gigabitethernet0/1)# no switchport trunk allowed vlan all
Device1(config-if-gigabitethernet0/1)# switchport trunk allowed vlan add 2,100-200
Device1(config-if-gigabitethernet0/1)#exit
Device1(config)# interface gigabitethernet 0/2
Device1(config-if-gigabitethernet0/1)# switchport mode trunk
Device1(config-if-gigabitethernet0/1)# no switchport trunk allowed vlan all
Device1(config-if-gigabitethernet0/1)# switchport trunk allowed vlan add 2,100-200
Device1(config-if-gigabitethernet0/1)#end

Step 2: Configure the MST instance.

#On Device1–Device4, configure MST instance 1 to map vlan100-200, and activate the instance.

Device1#configure terminal
Device1(config)# spanning-tree mst configuration
Device1(config-mst)# instance 1 vlan 100-200
Device1(config-mst)# active configuration pending
Device1(config-mst)#end

Step 3: Configure ERPS.

#On Device1, configure ERPS ring1, configures vlan2 as control VLAN of ring1, configure gigabitethernet0/1 as the normal port of ring1, configure gigabitethernet0/2 as the owner port of ring1, configure instance 1 as data VLAN of ring1, and enable ERPS function of ring1.

Device1# configure terminal
Device1(config)#erps ring 1
Device1(config-erps1)# control vlan 2
Device1(config-erps1)# port0 interface g0/1
Device1(config-erps1)# port1 interface g0/2 rpl owner
Device1(config-erps1)# instance 1
Device1(config-erps1)# erps enable
Device1(config-erps1)# exit
Device1(config)# interface gigabitethernet 0/1
Device1(config-if-gigabitethernet0/1)#no shutdown
Device1(config-if-gigabitethernet0/1)# end

#On Device2, configure ERPS ring1, configures vlan2 as control VLAN of ring1, configure gigabitethernet0/1 as the normal port of ring1, configure gigabitethernet0/2 as the normal port of ring1, configure instance 1 as data VLAN of ring1, and enable ERPS function of ring1.

Device2# configure terminal
Device2(config)#erps ring 1
Device2(config-erps1)# control vlan 2
Device2(config-erps1)# port0 interface g0/1
Device2(config-erps1)# port1 interface g0/2
Device2(config-erps1)# instance 1
Device2(config-erps1)# erps enable
Device2(config-erps1)# exit
Device2(config)# interface gigabitethernet 0/1
Device2(config-if-gigabitethernet0/1)#no shutdown
Device2(config-if-gigabitethernet0/1)# end

#On Device3, configure ERPS ring1, configure vlan2 as control VLAN of ring1, configure gigabitethernet0/1 as the neighbor port of ring1, configure gigabitethernet0/2 as the normal port of ring1, configure instance 1 as data VLAN of ring1, and enable ERPS function of ring1.

Device3# configure terminal
Device3(config)#erps ring 1
Device3(config-erps1)# control vlan 2
Device3(config-erps1)# port0 interface g0/1 rpl neighbor
Device3(config-erps1)# port1 interface g0/2
Device3(config-erps1)# instance 1
Device3(config-erps1)# erps enable
Device3(config-erps1)# exit
Device3(config)# interface gigabitethernet 0/1
Device3(config-if-gigabitethernet0/1)#no shutdown
Device3(config-if-gigabitethernet0/1)# end

#On Device4, configure ERPS ring1, configure vlan2 as control VLAN of ring1, configure gigabitethernet0/1 as the normal port of ring1, configure gigabitethernet0/2 as the normal port of ring1, configure instance 1 as data VLAN of ring1, and enable ERPS function of ring1.

Device4# configure terminal
Device4(config)#erps ring 1
Device4(config-erps1)# control vlan 2
Device4(config-erps1)# port0 interface g0/1
Device4(config-erps1)# port1 interface g0/2
Device4(config-erps1)# instance 1
Device4(config-erps1)# erps enable
Device4(config-erps1)# exit
Device4(config)# interface gigabitethernet 0/1
Device4(config-if-gigabitethernet0/1)#no shutdown
Device4(config-if-gigabitethernet0/1)# end

Step 4: Check the result.

#After the netwotk topology becomes stable, query the ERPS information of the Device, and take device1 as an example.

#Query the ERPS information of Device1.

Device1# show erps ring 1 detail
Ring ID       : 1 
Version       : v2
R-APS mel     : 7 
Instance      : 1 vlans mapped : 100-200
Control VLAN  : 2 
Node role     : Owner Node
state         : idle 
Guard timer   : 500 ms       Running : 0 ms
Holdoff timer : 0 ms         Running : 0 ms
WTR timer     : 5 min        Running : 0 s
WTB timer     : 7 s          Running : 0 s
Subring   : No 
Tc-limit enable : No
Tc-limit Interval : 2
Tc-limit Threshold : 3 
Revertive operation : Revertive 
R-APS channel : Non-Virtual channel
Enable status : Enable Gigabitethernet0/1 Flush Logic 
    Remote Node ID : 0000-0000-0000 
    Remote BPR     : 0
Gigabitethernet0/1 track CFM 
    MD Name   :  
    MA Name   :  
    MEP ID    : 0 
    RMEP ID   : 0 
    CFM State : 0
Gigabitethernet0/2 Flush Logic 
    Remote Node ID : 0000-0000-0000 
    Remote BPR     : 0
Gigabitethernet0/2 track CFM 
    MD Name   :  
    MA Name   :  
    MEP ID    : 0 
    RMEP ID   : 0 
    CFM State : 0 
Port  Name                   PortRole SwitchType PortStatus  SignalStatus   
----------------------------------------------------------------------------- 
Port0 gigabitethernet0/1     Normal--------------Forwarding  Non-failed        
Port1 gigabitethernet0/2     Owner---------------Blocking    Non-failed

Before configuring ERPS, ensure that the link status of at least one point in the ring network is down. Otherwise, it will cause loop.