If a node job submit fails, the submit is re-tried without this being considered a node failure. By default, a submit will be re-tried up to 6 times, with an exponential backoff on the time between retries, so as to not overload the schedd. If all of the submit retries fail, that is considered a single node failure. So if, for example, a node had 3 retries set, up to 24 attempts to submit the node job could be made.
The number of submit retries can be changed globally for a DAG, but not individually for a single node the way node-level retries can be.