Appendix J Troubleshooting
J.10.13 Miscellaneous Problems
J.10.13.3.9 Failed to Acquire a Session with a Switch
For MGX 8850 Release 4.0 or later, CTM waits in a predefined port to acquire the session, if it receives the "499 Session limit reached" error. This wait time is 1 minute by default and is configurable. If CTM does not get a response from the switch within this wait time, it times out and throws the following exception and then again retries to open the session:
( 9583: 6) 08:37:29 ERR:
It retries 5 times by default (this number is configurable). If all retries fails, cwmftpd throws the following exception:
( 9583:172473) 08:37:58 ERR:
Related key index entries: switch, session, FTP
J.10.13.3.10 Failed to Acquire Session After All Retries
The cwmftpd command failed to acquire a session with a switch on all retries.
Step 1 Check whether all four sessions have been opened by opening a manual FTP session to the switch.
Defect
Possible alternative
Related key index entries: session_timeout, session_fail
J.10.13.3.11 General Log Information
The cwmftpd.request_log file will have one entry for each request. It will have information about whether the request succeeded or failed and how much time it took. It has information in a short and simple format and since there is not much data per request, the file has more data in terms of amount of time.
Cwmftpd maintains information based on the IP address of the node. To track a request for a particular node, grep for the IP address as the keyword in cwmftp.log and cwmftpd.request_log.
When ooemc sends FTP requests, it also sends the node ID along with the request as part of the destination file. This node ID is used to retrieve the FTP user/password from the node_info table. This can be used for user/password validation.
The following keywords are from the cwmftpd.log file.
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