Need a way to provide redundancy to a non STPsupported Ring Cisco
Dlr Ring. Dlr, Nose Ring, Rings, Jewelry, Jewlery, Jewerly, Ring, Schmuck Step 1) In Studio 5000, add a 1756-EN2TR in your controller's chassis to be the primary device on a new DLR network: Image by Brandon Cooper A DLR ring can operate on access or trunk interfaces
Redundancy Protocol Configuration Guide, Cisco Catalyst IE3x00 and from www.cisco.com
Ring nodes monitor the connection with neighboring nodes and report failures to the ring supervisor Device Level Ring (DLR) protocol provides a means for detecting, managing and recovering from faults in a ring-based network
Redundancy Protocol Configuration Guide, Cisco Catalyst IE3x00 and
In non-DLR mode (failure mode), ring supervisors send messages on both the primary and secondary Ethernet ports Step 3) Next, click on the "Advance Button" and set the "Supervisor Precedence" to 20. Ring nodes that include embedded switch technology reduce the need for infrastructure switches and simplify network cabling
DLR (Device Level Ring). A DLR ring with trunk interfaces serves as an infrastructure that connects DLR-capable switches and devices in multiple VLANs. The switches to which the DLR rings are connected may be run with STP/RSTP/MSTP to ensure loop-free operation when redundant paths are present (indicated by the green lines in Fig
Replacement Diffuser Ring. Note that each ring node supports two EtherNet/IP ports. Step 2) On the network tab of the module properties window, enable "Supervisor Mode": Image by Brandon Cooper