Cross-cloud connectivity checks

A non-transitory computer-readable storage medium that includes a set of instructions which, in response to execution by a processor of a network device that comprises an edge, cause the processor to perform a method of cross-cloud connectivity checking, wherein the method comprises:

• detecting, by the edge, a first connectivity check packet that is injected by a first host and that is addressed from a first virtualized computing instance deployed at the first host in a first cloud environment that includes the edge;
• and
• in response to determination that the first connectivity check packet is destined for a second virtualized computing instance deployed at a second host in a second cloud environment, wherein the second cloud environment is different from the first cloud environment, and wherein the second cloud environment is reachable from the first cloud environment via a datapath between the first and second virtualized computing instances through the edge:
• generating, by the edge, a second connectivity check packet by modification of the first connectivity check packet to include one or more indicators that a cross-cloud connectivity check is required along the datapath towards the second virtualized computing instance in the second cloud environment, wherein the one or more indicators are absent from the detected first connectivity check packet and are added to the first connectivity check packet via the modification;
• and
• sending, by the edge, the second connectivity check packet to cause one or more observation points in the second cloud environment along the datapath to, based on the one or more indicators, generate and send report information associated with the second connectivity packet to the edge.

A computer system that comprises an edge configured to perform cross-cloud connectivity checking, the computer system comprising:

• a processor of the edge;
• and
• a non-transitory computer-readable medium of the edge and having stored thereon instructions that, in response to execution by the processor, cause the processor to:
• detect, by the edge, a first connectivity check packet that is injected by a first host and that is addressed from a first virtualized computing instance deployed at the first host in a first cloud environment that includes the edge;
• and
• in response to determination that the first connectivity check packet is destined for a second virtualized computing instance deployed at a second host in a second cloud environment, wherein the second cloud environment is different from the first cloud environment, and wherein the second cloud environment is reachable from the first cloud environment via a datapath between the first and second virtualized computing instances through the edge:
• generate, by the edge, a second connectivity check packet by modification of the first connectivity check packet to include one or more indicators that a cross-cloud connectivity check is required along the datapath towards the second virtualized computing instance in the second cloud environment, wherein the one or more indicators are absent from the detected first connectivity check packet and are added to the first connectivity check packet via the modification;
• and
• send, by the edge, the second connectivity check packet to cause one or more observation points in the second cloud environment along the datapath to, based on the one or more indicators, generate and send report information associated with the second connectivity packet to the edge.