This invention discloses a method and apparatus for monitoring the availability of a securities trading
system link. The method uses a strategy trading
system as the starting node, periodically sending
clock messages containing its own node number and a sending
timestamp. Downstream nodes in the trading link, such as the
order management system, order execution system, and
risk control system, receive the
clock messages sent by the upstream node,
append their own node number and current
timestamp to the messages, and then send the
clock messages to their downstream nodes. Simultaneously, each node sends its processed clock messages to the
monitoring system in real time. The
monitoring system receives the clock messages sent by each node and, by
parsing the message content, achieves full-
scenario monitoring of trading link
connectivity, abnormal latency, and bypass data. This invention can achieve full-link monitoring in both pre-market and midday trading scenarios, as well as in trading scenarios. It can accurately locate abnormal nodes and latency anomalies, and the low clock message frequency does not increase system load, making it widely applicable.