This read-create INTEGER (1..255) specifies, per its source description, how many times the switch resends an inform request if it doesn't receive a response from the management station within the configured Timeout interval, stopping once the retry count is reached. Admins tune this alongside tpSnmpNotificationHostTimeout to balance reliable inform delivery against how long the switch keeps retrying before giving up on an unresponsive host. For example, setting this to 5 would have the switch attempt delivery up to five times before abandoning a particular inform notification to that host.