User guide

C-124
Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Appendix C Troubleshooting
Miscellaneous Problems
Possible alternative workaround—None
Related key index entries: service not available, closing control connection, 421, session limit reached,
ftperr_421
C.15.3.8 499 Session Limit Reached
For SWSW MGX8850 Release 4 and later, switch will respond with "499 Session limit reached, queuing
<IP address> key <Nodename/XXXXXXXX>", when it reached the limitation of four ftp sessions.
cwmftpd will throw the exception FTPERR_499, when it tries to connect to a switch which responded
with error, "499 Session limit reached, queuing <IP address> key <Nodename/XXXXXXXX>".
Step 1 Check whether really all four sessions are opened by opening a manual FTP session to switch or by
switch command - dsptasks.
Step 2 Check whether it succeeds.
Defect Information—If manually opening the FTP session succeeds or dsptasks command shows less
than four entries for 'FtpdServ' , but still cwmftpd throws FTPERR_499, then report the problem with
cwmftpd.log, cwmftpd.request_log and logs of the process for which files are not getting transferred by
cwmftpd.
Related key index entries: 499, session limit reached, key, ftperr_499.
C.15.3.9 Acquiring a Session With Switch
For MGX8850 Release 4 and above, Cisco MGM will wait in predefined port to acquire the session, if
it receives "499 Session limit reached" error. This wait time is 1 min by default and configurable. If
Cisco MGM won't get response from switch within this wait time, it will timeout and throw the
following exception and then again retries to open the session.
( 9583: 6) 08:37:29 ERR: %CwmFtpDaemonException-3-SESSION_TIMEOUT: Session [Id[28],
ClientSeq#[6521], Host[172.25.69.218], User[superuser], Priority[3]:get /stat/1-04-Con-052920030730
/opt/svplus/spool/MGX98101-1-04-Con-052920030730-2] timeout in 3 minutes and needs to be retried.
It will retry 5 times by default (It is configurable). If all retries fails, cwmftpd will throw the following
exception.
( 9583:172473) 08:37:58 ERR: %CwmFtpDaemon-3-SESSION_FAIL: Thread [Host [172.2
5.69.218] User[superuser] NoRequest] failed to acquire session after 5 retries. Session wait time[5].
Related key index entries: switch, session, ftp