| 摘要 |
Node devices of a mesh communications network are interconnected by links. Forwarding tables are initially built following a link-state routing protocol. Each node device performs, upon detecting a link failure or a link recovery, determining and transmitting. Each end-point, when receiving said message(s) representative of said link failure or said link recovery, records an indication of whether each data path identified in the received message(s) can be activated or not. When the received message(s) is(are) representative of a link failure, each end-point performs selecting and transmitting. |
| 主权项 |
1. A method for configuring node devices of a mesh communications network, the node devices being interconnected by links, forwarding tables being implemented by said node devices wherein each node device performs, upon detecting a link failure of a link previously connected to a port of said node device or a link recovery of a link connected to a port of said node device:
determining, from a local forwarding table, one or more data paths impacted by the link failure or restored by the link recovery; and transmitting toward one end-point of each determined data path at least one message representative of said link failure or said link recovery and including identifiers of said determined paths; and wherein each end-point, when receiving said message(s) representative of said link failure or said link recovery, records an indication of whether each data path identified in the received message(s) can be activated or not; and wherein, when the received message(s) is(are) representative of a link failure, each end-point performs: selecting an alternative data path for each data path identified in said received message(s) and transmitting, for each selected alternative data path, a path switch message toward the other end-point of said selected alternative data path, aiming at activating said alternative data path instead of the corresponding data path impacted by the link failure, wherein the forwarding tables implemented by said node devices are initially built following a link-state routing protocol, and wherein each node device further performs, upon detecting a link failure of a link previously connected to a port of said node device or a link recovery of a link connected to a port of said node device: indicating in the local forwarding table, that said determined paths cannot be activated in case of link failure; and indicating, in the local forwarding table, that said determined paths can be activated, in case of link recovery. |
