TCP/IP profile record Global configuration section

This section provides Global configuration information from the GLOBALCONFIG profile statement. There is only one of these sections in the record.

Table 1 shows the TCP/IP profile record Global configuration section.
Table 1. TCP/IP profile record Global configuration section
Offset Name Length Format Description
0(X'0') NMTP_GBCFEye 4 EBCDIC GBCF eyecatcher
4(X'4') NMTP_GBCFFlags 2 Binary Flags:
X'8000', NMTP_GBCFExpBindPortRange:
If set, fields NMTP_GBCFExpBindPortRangeBegNum and NMTP_GBCFExpBindPortRangeEndNum contain the beginning and ending port numbers of the range of reserved TCP ports in the sysplex.
X'4000', NMTP_GBCFIqdMultiWrite:
If set, multiple write support is enabled for HiperSockets interfaces.
X'2000', NMTP_GBCFMlsCheckTerminate:
If set, the stack terminates if multi-level secure configuration inconsistencies are encountered.
X'1000', NMTP_GBCFSegOffload:
If set, TCP segmentation is offloaded to an OSA-Express® feature.
Guideline: This flag is deprecated. Use NMTP_V4CFSegOffload instead.
X'0800', NMTP_GBCFTcpipStats:
If set, several counters are written to the CFGPRINT DD data set when the TCP/IP stack terminates.
X'0400', NMTP_GBCFZiip:
If set, field NMTP_GBCFZiipOptions indicates for which workloads CPU cycles are displaced to a zIIP.
X'0200', NMTP_GBCFWlmPriorityQ:
If set, the following fields indicate the OSA-Express QDIO priority values that are assigned for packets associated with WLM service classes and for forwarded packets according to the control values for the WLMPRIORITYQ parameter:
  • NMTP_GBCFWPQCV0Pri
  • NMTP_GBCFWPQCV1Pri
  • NMTP_GBCFWPQCV2Pri
  • NMTP_GBCFWPQCV3Pri
  • NMTP_GBCFWPQCV4Pri
  • NMTP_GBCFWPQCV5Pri
  • NMTP_GBCFWPQCV6Pri
  • NMTP_GBCFWPQFwdPri
X'0100', NMTP_GBCFSMCR:
If set, this stack is enabled for SMC-R communications.
X'0080', NMTP_GBCFSMCD:
If set, this stack is enabled for SMC-D communications.
X'0040', NMTP_GBCFZERT:
If set, this stack is enabled for the zERT discovery function. The NMTP_GBCFZertParms field identifies additional ZERT subparameter settings.
6(X'6') NMTP_GBCFSysMonOptions 2 Binary The following are sysplex monitor subparameter settings:
X'8000', NMTP_GBCFSysMonAutoRejoin:
If set, the stack automatically rejoins the sysplex group after problems that caused it to leave the sysplex group are resolved.
X'4000', NMTP_GBCFSysMonDelayJoin:
If set, the stack delays joining the sysplex group until OMPROUTE is active.
X'2000', NMTP_GBCFSysMonDynRoute:
If set, the TCP/IP stack monitors the presence of dynamic routes over those network interfaces for which the MONSYSPLEX parameter was specified. This setting is dynamically changed if the MONINTERFACE or NOMONINTERFACE subparameters are specified.
X'1000', NMTP_GBCFSysMonMonIntf:
If set, the TCP/IP stack monitors the status of network interfaces for which the MONSYSPLEX parameter was specified.
X'0800', NMTP_GBCFSysMonRecovery:
If set, the TCP/IP stack issues error messagess, leaves the sysplex group, and deletes all DVIPA interfaces when a sysplex problem is detected.
X'0400', NMTP_GBCFSysMonNoJoin:
If set, the TCP/IP stack does not join the sysplex group until the V TCPIP,,SYSPLEX,JOINGROUP command is issued.
8(X'8') NMTP_GBCFIqdVlanId 2 Binary VLAN ID for the dynamic XCF HiperSockets interface. If not specified the value is 0.
10(X'A') NMTP_GBCFSysWlmPoll 1 Binary The number of seconds used by the sysplex distributor and its target servers, when polling WLM for new weight values.
11(X'B') NMTP_GBCFZiipOptions 1 Binary Workloads whose CPU cycles should be displaced to a zIIP. This field is valid only if the NMTP_GBCFZiip flag is set. The following are valid values:
X'80', NMTP_GBCFZiipIPSecurity:
If set, CPU cycles for IPSec workloads are displaced to a zIIP, when possible.
X'40', NMTP_GBCFZiipIqdioMultiWrite:
If set, CPU cycles for large TCP outbound messages are displaced to a zIIP.
12(X'C') NMTP_GBCFSysMonTimerSecs 2 Binary The number of seconds used by the sysplex monitor function to react to problems with needed sysplex resources.
14(X'E') NMTP_GBCFXcfGroupId 2 EBCDIC The 2-digit suffix used to generate the sysplex group name that the TCP/IP stack joins. If not specified the value is zero.
16(X'10') NMTP_GBCFExpBindPortRangeBegNum 2 Binary If flag NMTP_GBCFExpBindPortRange is set, this field contains the beginning port number in the reserved range.
18(X'12') NMTP_GBCFExpBindPortRangeEndNum 2 Binary If flag NMTP_GBCFExpBindPortRange is set, this field contains the ending port number in the reserved range.
20(X'14') NMTP_GBCFMaxRecs 4 Binary Configured maximum records value for the D TCPIP,,NETSTAT command. The value range is 1 - 65535. The value 65536 indicates that the * (asterisk) value was specified. This means all records.
24(X'18') NMTP_GBCFEcsaLimit 4 Binary The maximum ECSA storage size in bytes that can be used by the TCP/IP stack.
28(X'1C') NMTP_GBCFPoolLimit 4 Binary The maximum private storage size in bytes that can be used in the TCP/IP address space.
32(X'20') NMTP_GBCFWPQCV0Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 0. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
33(X'21') NMTP_GBCFWPQCV1Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 1. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
34(X'22') NMTP_GBCFWPQCV2Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 2. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
35(X'23') NMTP_GBCFWPQCV3Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 3. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
36(X'24') NMTP_GBCFWPQCV4Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 4. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
37(X'25') NMTP_GBCFWPQCV5Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 5. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
38(X'26') NMTP_GBCFWPQCV6Pri 1 Binary The OSA-Express QDIO priority value that is assigned to packets represented by control value 6. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
39(X'27') NMTP_GBCFWPQFwdPri 1 Binary The OSA-Express QDIO priority value that is assigned to forwarded packets. This field is valid only if flag NMTP_GBCFWlmPriorityQ is set.
40(X'28') NMTP_GBCFAutoIQDX 1 Binary AutoIQDX settings. If no flag bits are set, the NOAUTOIQDX parameter value is in effect.
X'02', NMTP_GBCFAutoIQDX_NoLargeData:
If this flag bit is set, dynamic IQDX interfaces are used for all eligible traffic, except for TCP data traffic that is sent with socket transmissions of 32 K or larger.
X'01', NMTP_GBCFAutoIQDX_AllTraffic:
If this flag bit is set, dynamic IQDX interfaces are used for all eligible traffic to the intraensemble data network.
41(X'29') NMTP_GBCFPFidCnt 1 Binary SMCR PFID count - the current number of configured PFID, port, and MTU entries in the NMTP_GBCFPFs array.
42(X'2A') NMTP_GBCFSMCGFlags 1 Binary SMCGlobal flags:
x'80', NMTP_GBCFAUTOCACHE
AUTOCACHE is configured. This function is active only when flag NMTP_GBCFSMCR is set and field NMTP_GBCFPFidCnt is not zero, or flag NMTP_GBCFSMCD is set.
x'40', NMTP_GBCFAUTOSMC
AUTOSMC is configured.
43(x'2B') NMTP_GBCFAdjDVMSS 1 Binary ADJUSTDVIPAMSS settings.
x'80', NMTP_GBCFAdjDVMSS_AUTO
If this flag is set, TCP/IP automatically adjusts the MSS size to avoid fragmentation for TCP connections that use VIPAROUTE and distributed DVIPAs.
x'40', NMTP_GBCFAdjDVMSS_ALL
If this flag is set, TCP/IP automatically adjusts the MSS size to avoid fragmentation for TCP connections that use any DVIPA, distributed or not, as the source IP address.
x'20', NMTP_GBCFAdjDVMSS_NONE
If this flag is set, TCP/IP does not adjust the MSS for any TCP connections.
44(X'2C') NMTP_GBCFFixedMemory 4 Binary SMCR FIXEDMEMORY value in megabytes
48(X'30') NMTP_GBCFTcpKeepMinInt 4 Binary SMCR TCPKEEPMININTERVAL value in seconds
52(X'34') NMTP_GBCFPFs(16) 96 Binary
SMCR PFID array that contains up to 16 entries. Each entry contains the following information:
  • PFID (2-byte hexadecimal value)
  • PortNum
  • MTU value
Note: When PFID represents a RoCE Express2 feature, the PortNum value is the port number configured for the PFID in the Hardware Configuration Definition (HCD). This port number is learned by VTAM® and TCP/IP during activation of the PFID and might be different from the value coded for PORTNUM for this PFID on the GLOBALCONFIG SMCR statement.
148(X'94') NMTP_GBCFZertParms 1 Binary Additional ZERT subparameters.
X'80' NMTP_GBCFZERTAGG:
If set, this stack is enabled for the zERT aggregration function.
149(X'95') NMTP_GBCFAutoIQDC 1 Binary AutoIQDC settings. If no flag bits are set, the NOAUTOIQDC parameter value is in effect.
x'02', NMTP_GBCFAutoIQDC_NoLargeData

If this flag bit is set, dynamic IQDC interfaces are used for all eligible traffic, except for TCP data traffic that is sent with socket transmissions of 32 K or larger.

x'01', NMTP_GBCFAutoIQDC_AllTraffic

If this flag bit is set, dynamic IQDC interfaces are used for all eligible traffic.
150(X'96'') NMTP_GBCFResv1 2 Binary Reserved
152(X'98') NMTP_GBCFFixedMemoryD 4 Binary SMCD FIXEDMEMORY value in megabytes
156(X'9C') NMTP_GBCFTcpKeepMinIntD 4 Binary SMCD TCPKEEPMININTERVAL value in seconds