The end of a "%ACE-6-302023 Teardown TCP connection ..." message is supposed to indicate the reason why the connection was torn down: TCP Fins, TCP Reset, Idle Timeout, etc. But i nour case some connections are logged with the following reason: "RTTO Limit". This reason is not documented in the "Message Guide" publication. Here's an example of a message (with masked IP adresses):
Sep 30 08:19:41 10.45.0.84 ADMCTX %ACE-6-302023: Teardown TCP connection 0x27d451 for vlan2120:xx.yy.180.17/49371 (xx.yy.180.17/1148) to vlan1562:aa.bb.6.162/443 (10.32.66.32/9082) duration 0:00:41 bytes 127826 RTTO Limit
So my question is: what does "RTTO Limit" mean as a reason to terminate a connection?
We are using an ACE-20 module and this message has appeared with both versions A2(2.4) and A2(3.2).