EZBH003E

Explanation
 Check CSTCP_TCPMAXRCVBUFRSIZE_tcpipstackname determined
that the configured TCP maximum receive buffer size is less than the
minimum specified for the check.
 If owner is
specified in the message text, the configured value is not sufficient
to provide optimal support to the z/OS® Communications
 Server FTP Server.
 The check name includes the jobname of
the TCP/IP stack as a suffix.
 In the message text:
 bufsize
The value specified for the TCPMAXRCVBUFRSIZE parameter on the
TCPCONFIG statement  in the TCP/IP profile or modified using the VARY
TCPIP,,OBEYFILE command. 
deftype
Possible values are: installation
The check parameters for this check have not been overridden.
owner
The check  parameters for this check have been overridden.

minval
The check parameter value against which the TCPMAXRCVBUFRSIZE
value  is compared.

System action
 The system continues processing. However, eventual
action might need to be  taken to provide optimal support to the z/OS Communications Server FTP
server.

Operator response
 Contact the system programmer.

System programmer response
 Optimally, the z/OS Communications Server FTP server needs
a buffer size of  180 KB for data connections.   If z/OS Communications Server FTP server is being
 used on the stack reporting the problem, modify the TCPMAXRCVBUFRSIZE
parameter  on the TCPCONFIG statement in your TCP/IP profile to specify
a value of at  least 180 KB.  To make this change effective immediately,
use the VARY  TCPIP,,OBEYFILE command, specifying a profile containing
the modified TCPCONFIG  statement.  
 See the information about
the TCPCONFIG statement in z/OS Communications Server: IP Configuration
Reference for more information about the TCPMAXRCVBUFRSIZE
parameter.
 See the information about the VARY
TCPIP,,OBEYFILE command in z/OS Communications Server: IP System Administrator's
Commands for more information about the VARY TCPIP,,OBEYFILE
 command.

User response
 Not applicable.

Problem determination
 Not applicable.

Source
 z/OS Communications
Server TCP/IP

Module
 EZBHCCK1

Example
  EZBH003E
TCPMAXRCVBUFRSIZE 120K is less than the owner specified 180K