Systems and methods for managing multi-layer communication networks

A computer-implemented method for restoring a network state after performing a maintenance activity that causes a disruption in a communication path of traffic over a multi-layer network, wherein the multi-layer network comprises a packet switching layer and an optical layer, wherein the packet switching layer comprises IP links and IP nodes, wherein the optical layer comprises optical links and optical nodes, the computer-implemented method comprising:

• determining that a first optical path of the optical paths is affected, or will be affected, by the maintenance activity;
• determining a metric associated with the first optical path;
• configuring a second optical path, according to the metric, in the optical layer to reduce traffic congestion that is caused by the first optical path being affected by the maintenance activity, wherein the second optical path is configured, at least in part, according to at least one of the following constraints:
• a length of time associated with configuring the second optical path;
• or
• a number of operations required to configure the second optical path;
• receiving an indication that the maintenance activity for an optical resource associated with the optical layer is completed;
• determining that the maintenance activity resulted in a particular link of the IP links transitioning from utilizing the first optical path to communicate traffic to utilizing the second optical path;
• instructing the packet switching layer to remove traffic from the particular IP link by rerouting the traffic to other IP links;
• instructing the optical layer to reroute traffic passing via the second optical path to the first optical path, wherein the first optical path includes the optical resource;
• and
• instructing the packet switching layer to reroute traffic back to the particular IP link.

One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• determining that a first optical path of optical paths is affected, or will be affected, by a maintenance activity;
• determining a metric associated with the first optical path;
• configuring a second optical path, according to the metric, in an optical layer of a multi-layer network to reduce traffic congestion that is caused by the first optical path being affected by the maintenance activity, wherein the second optical path is configured, at least in part, according to at least one of the following constraints:
• a length of time associated with configuring the second optical path;
• or
• a number of operations required to configure the second optical path;
• receiving an indication that the maintenance activity for an optical resource associated with the optical layer is completed;
• determining that the maintenance activity resulted in a particular link of IP links in the multi-layer network transitioning from utilizing the first optical path to communicate traffic to utilizing the second optical path;
• instructing a packet switching layer of the multi-layer network to remove traffic from the particular IP link by rerouting the traffic to other IP links;
• instructing the optical layer to reroute traffic passing via the second optical path to the first optical path, wherein the first optical path includes the optical resource;
• and
• instructing the packet switching layer to reroute traffic back to the particular IP link.