ECIS4500 series support E-Ring – How to configure E-Ring (balancing chain)? Follow

The network topology and configuration show as below,
Balancing chain topology:

Caution: Please do not connect the Ethernet cable before finishing configuration of balancing chain.
 
Note:
There are 4 roles of balancing chain:
- Terminal-1 / Terminal-2: The Switch connect to other topology.
- Central Block: The Switch has a central block port
- Member: The other switches joined balancing chain topology
 

 
Configuration:
1. Since ring protection is a media redundancy protocol (IEC 62439-2), please disable any other anti-loop protection.
1-1 Disable Spanning-Tree on all ports: (It’s enabled by default)

 
1-2 Disable Loop Protection on all ports: (It’s disabled by default)


2. Before configuring balancing chain, disable Ring index 1 and index 2
Then configure balancing chain on all switches.
- Terminal-1(switch A):

 
- Central Block (switch B):


 
- Member (switch C):

 
- Terminal-2(switch D):

 
Caution: 
There are 3 types of ring port:
- Terminal Port: ring ports connect between chain & other segments
- Central Block Port: a ring port in the central block of balancing chain
- Member port: the other ring port join balancing chain topology

 
3. Connect Ethernet cables.
Caution: central block port of central block switch always blocked by default. (no link failure)
 
4. Check the balancing chain status:
- Terminal-1(switch A):

 
- Central Block (switch B):

 

 
- Member (switch C):

 
- Terminal-2(switch D):

 

 
The status on each switch when link failed:
- Terminal-1(switch A): port 1 links down.

 
- Central Block (switch B): state of port 2 is changed from blocking to forwarding.

 

 
- Member (switch C): member ports still keep forwarding.

 
- Terminal-2(switch D): member ports still stay in forwarded.