Patent ID: 11863350
Assignee: CIENA CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A non-transitory computer-readable medium comprising instructions that, when executed, cause at least one processor in a Provider Edge (PE) node, which includes a plurality of ports including an inter-chassis port to a second PE node, a port connected to a root node, and one or more ports connected to leaf nodes, wherein the plurality of ports are in an Ethernet Tree (E-Tree) where Ethernet frames from a root node are received by any other root node or leaf node, and Ethernet frames from a leaf node are received only by a root node, and wherein the root node is dual-homed to the PE node and the second PE node, to perform steps comprising:
designating the inter-chassis port as one of a leaf node and a root node in the E-Tree, wherein the inter-chassis port forms a connection between the PE node and the second PE node with the connection being a link in the E-Tree; and
managing a designation of the inter-chassis port based on a status of the port connected to the root node.