Recently, my TSM AIX server has been reporting issues "communicating" with
our 3494 ATL (plain jane....no VTS).    This is not a new connection. Has
been working for years.

TSM has started to notice the issues.

I contacted IBM, who says they couldn't find anything wrong.  We checked
the network cable, end-to-end, with no media issues.

The AIX /var/adm/messages show:

May 19 11:27:01 agena lmcpd[5164]: Timeout polling for read data after
accept on library 3494atl
May 19 11:34:24 agena lmcpd[5164]: 3494atl: No CMD response received from
LM for msg id 11081F7D
May 19 11:34:25 agena lmcpd[5164]: Taking Library 3494atl offline to host
and reinitializing
May 19 11:34:26 agena lmcpd[5164]: Library 3494atl is online to host
May 19 11:40:20 agena lmcpd[5164]: Timeout polling for read data after
accept on library 3494atl
May 19 11:47:36 agena lmcpd[5164]: 3494atl: No CMD response received from
LM for msg id 11081F95
May 19 11:47:36 agena lmcpd[5164]: Taking Library 3494atl offline to host
and reinitializing
May 19 11:47:38 agena lmcpd[5164]: Library 3494atl is online to host
May 19 14:15:29 agena lmcpd[5164]: Timeout polling for read data after
accept on library 3494atl
May 19 14:22:28 agena lmcpd[5164]: 3494atl: No CMD response received from
LM for msg id 11082028
May 19 14:22:28 agena lmcpd[5164]: Taking Library 3494atl offline to host
and reinitializing
May 19 14:22:50 agena lmcpd[5164]: Library 3494atl is online to host
May 19 14:31:38 agena lmcpd[5164]: Timeout polling for read data after
accept on library 3494atl
May 19 14:38:35 agena lmcpd[5164]: 3494atl: No CMD response received from
LM for msg id 11082056
May 19 14:38:35 agena lmcpd[5164]: Taking Library 3494atl offline to host
and reinitializing
May 19 14:38:43 agena lmcpd[5164]: Library 3494atl is online to host
May 19 15:21:46 agena lmcpd[5164]: Timeout polling for read data after
accept on library 3494atl
May 19 15:28:45 agena lmcpd[5164]: 3494atl: No CMD response received from
LM for msg id 110820E2
May 19 15:28:45 agena lmcpd[5164]: Taking Library 3494atl offline to host
and reinitializing
May 19 15:28:46 agena lmcpd[5164]: Library 3494atl is online to host


Any suggestions ?  Clues ?  Where to look ?