TN3270 Server Manual

Using the Guardian TN3270 Server
TN3270 Server Manual—424097-001
3-6
Name Resolution
Table 3-2 shows the various 3270 command sets defined by IBM.
Name Resolution
The -n command line option specifies how host name resolution is performed:
•
If -n0 is specified, no name resolution is performed. Host names do not appear in
EMS events.
•
If -n1 is specified, host names are resolved from the hosts file specified by
PARAM TCPIP^HOST^FILE or, if PARAM is omitted, from
$SYSTEM.ZTCPIP.HOSTS. If a host is not found in the hosts file, the host name
does not appear in EMS events and no error is reported.
Table 3-2. 3270 Command Set
3270 Command ASCII
Local
EBCDIC
Remote
EBCDIC
COPY x’37’ Note 1 x’f7’
ERASE ALL UNPROTECT x’0f’ x’6f’ x’3f’
ERASE WRITE x’35’ x’05’ x’f5’
ERASE WRITE ALT x’3d’ x’0d’ x’7e’
READ BUFFER x’32’ x’02’ x’f2’
READ MODIFIED x’36’ x’06’ x’6’
READ MODIFIED ALL x’3e’ Note 1 x’6e’
WRITE x’31’ x’01’ x’01’
NO-OPERATION Note 2 x’03’ N.A.
SELECT xx Note 2 Note 3 N.A.
SENSE Note 2 x’04’ N.A.
SENSE ID Note 2 x’e4’ N.A.
WRITE STRUCT FIELD Note 2 x’11’ N.A.
WRITE STRUCT FIELD Note 2 N.A. x’f3’
Note 1: This is not a valid local command. The Guardian TN3270 Server rejects a write of a buffer containing
this command with error 179 if the -r option is omitted.
Note 2: This is not a valid ASCII command. The Guardian TN3270 Server rejects a write of a buffer that does
not contain a valid ASCII command with error 179.
Note 3: Select commands are x’0B’, x’1B’, x’2B’, x’3B’, and x’4B’.