Patent ID: 9088438
Filing Date: 2015-07-21
Classification: H04L

Abstract:
1. A method, comprising: establishing, by a device, a virtual channel with a remote routing device in a G.8032 protocol Ethernet network ring, the device and the remote routing device each being linked to a multi-homed routing device having Layer 2 connectivity to a core network wherein the multi-homed routing device is not configured with the G.8032 protocol; monitoring, by the device, at least i) a link state of an access link between the multi-homed routing device and the device, ii) the link state of a virtual channel between the device and the remote routing device, and iii) the link state between the device and the core network; controlling Layer 2 connectivity of the device to the core network based upon the monitored link states of the device; detecting, by the device, a failure in an access link between the device and the multi-homed routing device; blocking, by the device, a port associated with the failure in the access link; advertising, by the device, over the virtual channel between the device and the remote routing device, a fail signal to the remote routing device indicating that there has been a failure at the device, the fail signal triggering the remote routing device to remove a Ring Protection Link (RPL); and once the access link has recovered, unblocking the port associated with the failure and reestablishing the RPL at the remote routing device.