Apuntes de Networking: Comandos TCP/IP en z/OS

En este artículo vamos a ver una serie de comandos MVS a ejecutar desde la consola o desde TSO para obtener información acerca de configuración, conexiones, clientes, dispositivos, ... de TCP/IP (zOS).
Si tenemos varias pilas TCP/IP debemos identificar sobre cual aplica el comando mediante el campo procname.

D TCPIP - Muestra los nombres y estado de la/s pila/s TCP/IP.

D TCPIP
EZAOP50I TCPIP STATUS REPORT 146
COUNT TCPIP NAME VERSION STATUS
----- ---------- -------- --------------------------------
1 TCPIP CS V1R11 ACTIVE
*** END TCPIP STATUS REPORT ***
EZAOP41I 'DISPLAY TCPIP' COMMAND COMPLETED SUCCESSFULLY

D TCPIP,{procname},STOR- Muestra información del uso de almacenamiento de la pila TCP/IP:

D TCPIP,,STOR

EZZ8453I TCPIP STORAGE 668

EZZ8454I TCPIP STORAGE CURRENT MAXIMUM LIMIT

EZZ8455I TCPIP ECSA 9598K 10602K NOLIMIT

EZZ8455I TCPIP POOL 7404K 7488K NOLIMIT

EZZ8455I TCPIP 64-BIT COMMON 1M 1M NOLIMIT

EZZ8459I DISPLAY TCPIP STOR COMPLETED SUCCESSFULLY

D TCPIP,{procname},Netstat,CONFIG - Este comando muestra información sobre las facilidades habilitadas y las características operativas de la pila TCP/IP:

D TCPIP,,NETSTAT,CONFIG

EZZ2500I NETSTAT CS V1R11 TCPIP 586

TCP CONFIGURATION TABLE:

DEFAULTRCVBUFSIZE: 00065535 DEFAULTSNDBUFSIZE: 00065535

DEFLTMAXRCVBUFSIZE: 00262144 SOMAXCONN: 0000001024

MAXRETRANSMITTIME: 120.000 MINRETRANSMITTIME: 0.500

ROUNDTRIPGAIN: 0.125 VARIANCEGAIN: 0.250

VARIANCEMULTIPLIER: 2.000 MAXSEGLIFETIME: 30.000

DEFAULTKEEPALIVE: 00000120 DELAYACK: YES

RESTRICTLOWPORT: YES SENDGARBAGE: NO

TCPTIMESTAMP: YES FINWAIT2TIME: 600

TTLS: NO

UDP CONFIGURATION TABLE:

DEFAULTRCVBUFSIZE: 00065535 DEFAULTSNDBUFSIZE: 00065535

CHECKSUM: YES

RESTRICTLOWPORT: YES UDPQUEUELIMIT: YES

IP CONFIGURATION TABLE:

FORWARDING: NO TIMETOLIVE: 00064 RSMTIMEOUT: 00060

IPSECURITY: NO

ARPTIMEOUT: 01200 MAXRSMSIZE: 65535 FORMAT: SHORT

IGREDIRECT: YES SYSPLXROUT: NO DOUBLENOP: NO

STOPCLAWER: NO SOURCEVIPA: NO

MULTIPATH: NO PATHMTUDSC: YES DEVRTRYDUR: 0000000090

DYNAMICXCF: NO

QDIOACCEL: NO

IQDIOROUTE: NO

TCPSTACKSRCVIPA: NO

SMF PARAMETERS:

TYPE 118:

TCPINIT: 00 TCPTERM: 00 FTPCLIENT: 00

TN3270CLIENT: 00 TCPIPSTATS: 00

TYPE 119:

TCPINIT: NO TCPTERM: YES FTPCLIENT: YES

TCPIPSTATS: YES IFSTATS: YES PORTSTATS: YES

STACK: YES UDPTERM: YES TN3270CLIENT: YES

IPSECURITY: YES PROFILE: NO

GLOBAL CONFIGURATION INFORMATION:

TCPIPSTATS: NO ECSALIMIT: 0000000K POOLLIMIT: 0000000K

MLSCHKTERM: NO XCFGRPID: IQDVLANID: 0

SEGOFFLOAD: NO SYSPLEXWLMPOLL: 060 MAXRECS: 100

EXPLICITBINDPORTRANGE: 00000-00000 IQDMULTIWRITE: NO

WLMPRIORITYQ: NO

SYSPLEX MONITOR:

TIMERSECS: 0060 RECOVERY: NO DELAYJOIN: NO AUTOREJOIN: NO

MONINTF: NO DYNROUTE: NO

ZIIP:

IPSECURITY: NO IQDIOMULTIWRITE: NO

NETWORK MONITOR CONFIGURATION INFORMATION:

PKTTRCSRV: YES TCPCNNSRV: YES MINLIFTIM: 0 NTASRV: NO

SMFSRV: YES

IPSECURITY: YES PROFILE: YES

END OF THE REPORT

D TCPIP,{procname},Netstat,ALLConn|COnn - Muestra la información de sockets para la pila TCP/IP

D TCPIP,,NETSTAT,ALLCONN

EZZ2500I NETSTAT CS V1R11 TCPIP 465
USER ID CONN LOCAL SOCKET FOREIGN SOCKET STATE
AUTOPRA 00000018 0.0.0.0..4020 0.0.0.0..0 LISTEN
BPXOINIT 00000016 0.0.0.0..10007 0.0.0.0..0 LISTEN
CSFTTCP 00000015 0.0.0.0..50003 0.0.0.0..0 LISTEN
FTPPROC1 0000003A 0.0.0.0..21 0.0.0.0..0 LISTEN
IOASRV 0000003D 0.0.0.0..2000 0.0.0.0..0 LISTEN
PORTMAP 0000003C 0.0.0.0..111 0.0.0.0..0 LISTEN
TN3270 00000170 192.168.154.79..23 192.168.154.98..2222 ESTBLSH
TN3270 000000E6 192.168.154.79..23 192.168.154.99..1663 ESTBLSH
TN3270 00000011 0.0.0.0..23 0.0.0.0..0 LISTEN
NET 0000000D 192.168.155.105..12004 *..* UDP
NET 0000000B 192.168.155.105..12002 *..* UDP
NET 00000009 192.168.155.105..12000 *..* UDP
NET 0000000C 192.168.155.105..12003 *..* UDP
NET 0000000A 192.168.155.105..12001 *..* UDP
PORTMAP 0000003B 0.0.0.0..111 *..* UDP
TCPIP 000003A6 0.0.0.0..1866 *..* UDP
TN3270 000003A7 0.0.0.0..1867 *..* UDP
17 OF 17 RECORDS DISPLAYED
END OF THE REPORT

Añadiendo el parámetro opcional APPLDATA podemos ver información adicional de la conexión de datos de las aplicaciones:

D TCPIP,TCPIP,NETSTAT,CONN,APPLDATA
EZZ2500I NETSTAT CS V1R11 TCPIP 066
USER ID CONN LOCAL SOCKET FOREIGN SOCKET STATE
AUTOPRA 00000011 0.0.0.0..4020 0.0.0.0..0 LISTEN
BPXOINIT 00000012 0.0.0.0..10007 0.0.0.0..0 LISTEN
CSFTTCP 0000002F 0.0.0.0..50003 0.0.0.0..0 LISTEN
FTPPROC1 0000002D 0.0.0.0..21 0.0.0.0..0 LISTEN
APPLICATION DATA: EZAFTP0D
IOASRV 00000030 0.0.0.0..2000 0.0.0.0..0 LISTEN
PORTMAP 00000032 0.0.0.0..111 0.0.0.0..0 LISTEN
TN3270 000002DD 192.168.154.79..23 192.168.154.98..2695 ESTBLSH
APPLICATION DATA: EZBTNSRV BRAZIP06 ET B
TN3270 000002E5 192.168.154.79..23 192.168.154.99..1889 ESTBLSH
APPLICATION DATA: EZBTNSRV BRAZIP07 AEZZVSCS ET B
TN3270 00000347 192.168.154.79..23 192.168.154.98..2713 ESTBLSH
APPLICATION DATA: EZBTNSRV BRAZIP09 AEZZVSCS ET B
TN3270 00000325 192.168.155.29..23 129.39.137.5..57620 ESTBLSH
APPLICATION DATA: EZBTNSRV BRAZIP08 BRAZTS02 ET B
TN3270 000002DB 192.168.154.79..23 192.168.154.98..2694 ESTBLSH
APPLICATION DATA: EZBTNSRV BRAZIP05 AEZZVSCS ET B
TN3270 00000013 0.0.0.0..23 0.0.0.0..0 LISTEN
NET 0000000B 192.168.155.105..12002 *..* UDP
NET 00000009 192.168.155.105..12000 *..* UDP
NET 0000000C 192.168.155.105..12003 *..* UDP
NET 0000000A 192.168.155.105..12001 *..* UDP
NET 0000000D 192.168.155.105..12004 *..* UDP
PORTMAP 00000031 0.0.0.0..111 *..* UDP
TN3270 00000550 0.0.0.0..2017 *..* UDP
19 OF 19 RECORDS DISPLAYED
END OF THE REPORT

D TCPIP,{procname},Netstat,PORTList - Este comando nos muestra la lista de puertos reservados.

D TCPIP,,NETSTAT,PORTL
EZZ2500I NETSTAT CS V1R11 TCPIP 920
PORTÑ PROT USER FLAGS RANGE IP ADDRESS SAF NAME
7 TCP RESERVED DA
9 TCP RESERVED DA
11 TCP RESERVED DA
13 TCP RESERVED DA
15 TCP RESERVED DA
19 TCP RESERVED DA
20 TCP * D
21 TCP FTPPROC1 DA
23 TCP TN3270 DA
25 TCP SMTPPROC DA
43 TCP RESERVED DA
53 TCP NAMED DA
67 TCP RESERVED DA
79 TCP RESERVED DA
80 TCP OMVS DA
111 TCP PORTMAP DA
389 TCP LDAPSRV DA
443 TCP HTTPS DA
512 TCP RXSERVE DA
514 TCP RXSERVE DA
515 TCP LPSERVE DA
623 TCP OMVS DA
750 TCP MVSKERB DA
751 TCP ADM@SRV DA
1414 TCP MQSYCHIN DA
1415 TCP MQS1CHIN DA
1933 TCP ILMTSRVR DA
1934 TCP ILMTSRVR DA
2000 TCP IOASRV DA
2006 TCP OMVS DS
2049 TCP RESERVED DA
2809 TCP WAS5S DA
2810 TCP WAS5SA DA
2811 TCP WAS5NA1 DA
3000 TCP CICSTCP DA
3389 TCP MSYSLDAP DA
5655 TCP WAS5MNB DA
5656 TCP WAS5MNB DA
5657 TCP WAS5DMNA DA
5658 TCP WAS5DMNA DA
5755 TCP WAS5DMN DA
5756 TCP WAS5DMN DA
7272 TCP WAS5NA1 DA
7277 TCP WAS5DMG DA
8878 TCP WAS5NA1 DA
8879 TCP WAS5DMG DA
8880 TCP WAS5S DA
8881 TCP WAS5SA DA
9043 TCP WAS5DMG DA
9080 TCP WAS5S DA
9081 TCP WAS5SA DA
9090 TCP WAS5DMG DA
9443 TCP WAS5S DA
9444 TCP WAS5SA DA
9809 TCP WAS5DMG DA
9810 TCP WAS5SA DA
50003 TCP CSFTTCP DA
7 UDP RESERVED DA
9 UDP RESERVED DA
11 UDP RESERVED DA
13 UDP RESERVED DA
15 UDP RESERVED DA
19 UDP RESERVED DA
53 UDP NAMED DA
69 UDP RESERVED DA
111 UDP PORTMAP DA
123 UDP SNTPD DA
135 UDP LLBD DA
161 UDP TCPSNMP DA
162 UDP SNMPQE DA
443 UDP HTTPS DA
513 UDP RESERVED DA
750 UDP MVSKERB DA
751 UDP ADM@SRV DA
2049 UDP RESERVED DA
12000 UDP NET DA
12001 UDP NET DA
12002 UDP NET DA
12003 UDP NET DA
12004 UDP NET DA
80 OF 80 RECORDS DISPLAYED

D TCPIP,{procname},Netstat,ARp - Muestra el contenido de la cache ARP para la pila TCP/IP:

D TCPIP,,NETSTAT,ARP

EZZ2500I NETSTAT CS V1R11 TCPIP 470

QUERYING ARP CACHE FOR ADDRESS 192.168.155.105

INTERFACE: ETH1 ETHERNET: 020000C68000

QUERYING ARP CACHE FOR ADDRESS 192.168.155.25

INTERFACE: ETH1 ETHERNET: 000A417E90E0

QUERYING ARP CACHE FOR ADDRESS 192.168.155.29

INTERFACE: ETH1 ETHERNET: 020000C68000

QUERYING ARP CACHE FOR ADDRESS 192.168.154.99

INTERFACE: ETH2 ETHERNET: 001BFC8078B2

QUERYING ARP CACHE FOR ADDRESS 192.168.154.98

INTERFACE: ETH2 ETHERNET: 001BFC8079D4

QUERYING ARP CACHE FOR ADDRESS 192.168.155.105

INTERFACE: ETH2 ETHERNET: E41F1350820A

QUERYING ARP CACHE FOR ADDRESS 192.168.154.79

INTERFACE: ETH2 ETHERNET: E41F1350820A

7 OF 7 RECORDS DISPLAYED

END OF THE REPORT

D TCPIP,{procname},Netstat,DEvlinks - Muestra el estado de los dispositivos y links de la pila TCP/IP:

D TCPIP,,NETSTAT,DEV
EZZ2500I NETSTAT CS V1R11 TCPIP 550
DEVNAME: LOOPBACK DEVTYPE: LOOPBACK
DEVSTATUS: READY
LNKNAME: LOOPBACK LNKTYPE: LOOPBACK LNKSTATUS: READY
ACTMTU: 65535
ROUTING PARAMETERS:
MTU SIZE: N/A METRIC: 00
DESTADDR: 0.0.0.0 SUBNETMASK: 0.0.0.0
MULTICAST SPECIFIC:
MULTICAST CAPABILITY: NO
LINK STATISTICS:
BYTESIN = 330498
INBOUND PACKETS = 5124
INBOUND PACKETS IN ERROR = 0
INBOUND PACKETS DISCARDED = 0
INBOUND PACKETS WITH NO PROTOCOL = 0
BYTESOUT = 330498
OUTBOUND PACKETS = 5124
OUTBOUND PACKETS IN ERROR = 0
OUTBOUND PACKETS DISCARDED = 0
DEVNAME: LCS1 DEVTYPE: LCS DEVNUM: 0D00
DEVSTATUS: READY
LNKNAME: ETH1 LNKTYPE: ETH LNKSTATUS: READY
NETNUM: 0 QUESIZE: 0
IPBROADCASTCAPABILITY: YES
MACADDRESS: 020000C68000
ACTMTU: 1500
SECCLASS: 255 MONSYSPLEX: NO
ROUTING PARAMETERS:
MTU SIZE: N/A METRIC: 00
DESTADDR: 0.0.0.0 SUBNETMASK: 255.255.255.248
MULTICAST SPECIFIC:
MULTICAST CAPABILITY: YES
GROUP REFCNT SRCFLTMD
----- ------ --------
224.0.0.1 0000000001 EXCLUDE
SRCADDR: NONE
LINK STATISTICS:
BYTESIN = 68096224
INBOUND PACKETS = 282011
INBOUND PACKETS IN ERROR = 0
INBOUND PACKETS DISCARDED = 0
INBOUND PACKETS WITH NO PROTOCOL = 0
BYTESOUT = 78249281
OUTBOUND PACKETS = 270141
OUTBOUND PACKETS IN ERROR = 0
OUTBOUND PACKETS DISCARDED = 5
DEVNAME: LCS2 DEVTYPE: LCS DEVNUM: 0D20
DEVSTATUS: READY
LNKNAME: ETH2 LNKTYPE: ETH LNKSTATUS: READY
NETNUM: 0 QUESIZE: 0
IPBROADCASTCAPABILITY: YES
MACADDRESS: E41F1350820A
ACTMTU: 1500
SECCLASS: 255 MONSYSPLEX: NO
ROUTING PARAMETERS:
MTU SIZE: N/A METRIC: 00
DESTADDR: 0.0.0.0 SUBNETMASK: 255.255.255.0
MULTICAST SPECIFIC:
MULTICAST CAPABILITY: YES
GROUP REFCNT SRCFLTMD
----- ------ --------
224.0.0.1 0000000001 EXCLUDE
SRCADDR: NONE
LINK STATISTICS:
BYTESIN = 1613406
INBOUND PACKETS = 9902
INBOUND PACKETS IN ERROR = 1105
INBOUND PACKETS DISCARDED = 0
INBOUND PACKETS WITH NO PROTOCOL = 0
BYTESOUT = 3299752
OUTBOUND PACKETS = 5901
OUTBOUND PACKETS IN ERROR = 0
OUTBOUND PACKETS DISCARDED = 0
DEVNAME: VDEV1 DEVTYPE: VIPA
DEVSTATUS: READY
LNKNAME: VLINK1 LNKTYPE: VIPA LNKSTATUS: READY
ROUTING PARAMETERS:
MTU SIZE: N/A METRIC: 00
DESTADDR: 0.0.0.0 SUBNETMASK: 255.255.255.0
MULTICAST SPECIFIC:
MULTICAST CAPABILITY: NO
DEVNAME: IUTSAMEH DEVTYPE: MPCPTP
DEVSTATUS: READY
LNKNAME: LNKSAMEH LNKTYPE: MPCPTP LNKSTATUS: READY
ACTMTU: 65535
SECCLASS: 255 MONSYSPLEX: NO
ROUTING PARAMETERS:
MTU SIZE: N/A METRIC: 00
DESTADDR: 0.0.0.0 SUBNETMASK: 255.0.0.0
MULTICAST SPECIFIC:
MULTICAST CAPABILITY: YES
GROUP REFCNT SRCFLTMD
----- ------ --------
224.0.0.1 0000000001 EXCLUDE
SRCADDR: NONE
LINK STATISTICS:
BYTESIN = 0
INBOUND PACKETS = 0
INBOUND PACKETS IN ERROR = 0
INBOUND PACKETS DISCARDED = 0
INBOUND PACKETS WITH NO PROTOCOL = 0
BYTESOUT = 0
OUTBOUND PACKETS = 0
OUTBOUND PACKETS IN ERROR = 0
OUTBOUND PACKETS DISCARDED = 0
IPV4 LAN GROUP SUMMARY
LANGROUP: 00001
NAME STATUS ARPOWNER VIPAOWNER
---- ------ -------- ---------
ETH1 ACTIVE ETH1 YES
LANGROUP: 00002
NAME STATUS ARPOWNER VIPAOWNER
---- ------ -------- ---------
ETH2 ACTIVE ETH2 YES
OSA-EXPRESS NETWORK TRAFFIC ANALYZER INFORMATION:
NO OSA-EXPRESS NETWORK TRAFFIC ANALYZER INTERFACES ARE DEFINED
5 OF 5 RECORDS DISPLAYED
END OF THE REPORT

D TCPIP,{procname},Netstat,HOme - Muestra la dirección o direcciones IP de TCP/IP:

D TCPIP,,NETSTAT,HOME

EZZ2500I NETSTAT CS V1R11 TCPIP 556

HOME ADDRESS LIST:

ADDRESS LINK FLG

192.168.154.79 ETH2

192.168.155.105 VLINK1

192.168.155.29 ETH1 P

10.20.30.41 LNKSAMEH

127.0.0.1 LOOPBACK

5 OF 5 RECORDS DISPLAYED

END OF THE REPORT

D TCPIP,{procname},Netstat,ROUTe - Muestra la tabla de rutas:

D TCPIP,,NETSTAT,ROUTE

EZZ2500I NETSTAT CS V1R11 TCPIP 570

DESTINATION GATEWAY FLAGS REFCNT INTERFACE

DEFAULT 192.168.155.25 UGS 0000000015 ETH1

10.20.30.41/32 0.0.0.0 UH 0000000000 LNKSAMEH

127.0.0.1/32 0.0.0.0 UH 0000000002 LOOPBACK

192.168.154.0/24 0.0.0.0 US 0000000002 ETH2

192.168.154.79/32 0.0.0.0 UH 0000000000 ETH2

192.168.155.24/29 0.0.0.0 US 0000000000 ETH1

192.168.155.29/32 0.0.0.0 UH 0000000000 ETH1

192.168.155.105/32 0.0.0.0 UH 0000000000 VLINK1

8 OF 8 RECORDS DISPLAYED

END OF THE REPORT

D TCPIP,{procname},Netstat,STATs - Muestra estadísticas relativas al TCP/IP

D TCPIP,,NETSTAT,STATS
EZZ2500I NETSTAT CS V1R11 TCPIP 376
IP STATISTICS
PACKETS RECEIVED                   = 385869
INBOUND CALLS FROM DEVICE LAYER    = 631334
INBOUND FRAME UNPACKING ERRORS     = 0
INBOUND DISCARDS MEMORY SHORTAGE   = 0
RECEIVED HEADER ERRORS             = 1520
RECEIVED ADDRESS ERRORS            = 1520
DATAGRAMS FORWARDED                = 0
UNKNOWN PROTOCOLS RECEIVED         = 0
RECEIVED PACKETS DISCARDED         = 0
RECEIVED PACKETS DELIVERED         = 388450
OUTPUT REQUESTS                    = 9750
OUTPUT DISCARDS NO ROUTE           = 0
OUTPUT DISCARDS DLC SYNC ERRORS    = 0
OUTPUT DISCARDS DLC ASYNC ERRORS   = 0
OUTPUT DISCARDS MEMORY SHORTAGE    = 0
OUTPUT DISCARDS (OTHER)            = 0
REASSEMBLY TIMEOUTS                = 0
REASSEMBLY REQUIRED                = 0
REASSEMBLY SUCCESSFUL              = 0
REASSEMBLY FAILURES                = 0
DATAGRAMS SUCCESSFULLY FRAGMENTED = 0
DATAGRAMS FAILING FRAGMENTATION    = 0
FRAGMENTS CREATED                  = 0
INBOUND PACKETS HANDLED BY ZIIP    = 0
OUTBOUND PACKETS HANDLED BY ZIIP   = 0
ICMP STATISTICS
                            RECEIVED    SENT
                            --------    ----
MESSAGES                  3805        3480
ERRORS                    0           0
DESTINATION UNREACHABLE   3543        3468
TIME EXCEEDED             156         0
PARAMETER PROBLEMS        0           0
SOURCE QUENCHS            0           0
REDIRECTS                 0           0
ECHOS                     1           11
ECHO REPLIES              105         1
TIMESTAMPS                0           0
TIMESTAMP REPLIES         0           0
ADDRESS MASKS             0           0
ADDRESS MASK REPLIES      0           0
TCP STATISTICS
CURRENT ESTABLISHED CONNECTIONS     = 1
ACTIVE CONNECTIONS OPENED           = 2
PASSIVE CONNECTIONS OPENED          = 14
CONNECTIONS CLOSED                  = 15
ESTABLISHED CONNECTIONS DROPPED     = 0
CONNECTION ATTEMPTS DROPPED         = 1
CONNECTION ATTEMPTS DISCARDED       = 0
TIMEWAIT CONNECTIONS REUSED         = 0
SEGMENTS RECEIVED                   = 2343
HEADER PREDICTION OK FOR ACK        = 338
HEADER PREDICTION OK FOR DATA       = 1311
DUPLICATE ACKS                      = 35
DISCARDS FOR BAD CHECKSUM           = 0
DISCARDS FOR BAD HEADER LENGTH      = 0
DISCARDS FOR DATA TOO SHORT         = 0
DISCARDS FOR OLD TIMESTAMP          = 0
SEGMENTS COMPLETELY DUPLICATE       = 0
SEGMENTS PARTIALLY DUPLICATE        = 13
SEGMENTS COMPLETELY AFTER WINDOW    = 0
SEGMENTS PARTIALLY AFTER WINDOW     = 0
SEGMENTS OUT OF ORDER               = 0
SEGMENTS RECEIVED AFTER CLOSE       = 0
WINDOW PROBES RECEIVED              = 0
WINDOW UPDATES RECEIVED             = 3
SEGMENTS SENT                       = 2368
WINDOW UPDATES SENT                 = 0
DELAYED ACKS SENT                   = 894
RESETS SENT                         = 2
SEGMENTS RETRANSMITTED              = 11
RETRANSMIT TIMEOUTS                 = 9
CONNECTIONS DROPPED BY RETRANSMIT   = 1
PATH MTU DISCOVERY RETRANSMITS      = 0
PATH MTU BEYOND RETRANSMIT LIMIT    = 0
WINDOW PROBES SENT                  = 0
CONNECTIONS DROPPED DURING PROBE    = 0
KEEPALIVE PROBES SENT               = 0
CONNECTIONS DROPPED BY KEEPALIVE    = 0
CONNECTIONS DROPPED BY FINWAIT2     = 0
UDP STATISTICS
DATAGRAMS RECEIVED    = 370215
NO PORT ERRORS        = 3468
RECEIVE ERRORS        = 0
DATAGRAMS SENT        = 335694

D TCPIP,{procname},Netstat,BYTEinfo - Muestra información de byte-count para cada una de las conexiones activa y sockets UDP:

D TCPIP,,NETSTAT,BYTE
EZZ2500I NETSTAT CS V1R11 TCPIP 506
                    MVS TCP/IP REAL TIME NETWORK MONITOR
USER ID B OUT      B IN       L PORT FOREIGN SOCKET          STATE
AUTOPRA 0000000000 0000000000 04020   0.0.0.0..0              LISTEN
BPXOINIT 0000000000 0000000000 10007   0.0.0.0..0              LISTEN
CSFTTCP 0000000000 0000000000 50003   0.0.0.0..0              LISTEN
FTPPROC1 0000000000 0000000000 00021   0.0.0.0..0              LISTEN
IOASRV   0000000000 0000000000 02000   0.0.0.0..0              LISTEN
PORTMAP 0000000000 0000000000 00111   0.0.0.0..0              LISTEN
TN3270   0000748210 0000040485 00023   129.39.137.5..2154      ESTBLSH
TN3270   0000000000 0000000000 00023   0.0.0.0..0              LISTEN
NET      0000150127 0000149305 12000   *..*                    UDP
NET      0025680579 0040704245 12001   *..*                    UDP
NET      0036445875 0035246458 12003   *..*                    UDP
NET      0002884055 0004893211 12002   *..*                    UDP
NET      0000096462 0000820641 12004   *..*                    UDP
PORTMAP 0000000000 0000000000 00111   *..*                    UDP
14 OF 14 RECORDS DISPLAYED
END OF THE REPORT

V TCPIP,{procname},PURGECACHE,linkname - Con este comando borramos la caché ARP para el adaptador especificado:

V TCPIP,,PURGECACHE,ETH2

EZZ0060I PROCESSING COMMAND: VARY TCPIP,,PURGECACHE,ETH2

EZZ9786I PURGECACHE PROCESSED FOR LINK ETH2

EZZ0053I COMMAND PURGECACHE COMPLETED SUCCESSFULLY

V TCPIP,{procname},START|STOP,devname - Este comando nos permite parar y arrancar un dispositivo de los definidos en la pila TCP/IP, sin afectar al resto de dispositivos definidos en ella. Los dispositivos se pueden identificar mediante la salida del comando NETSTAT DEV:

V TCPIP,,STOP,LCS2
EZZ0060I PROCESSING COMMAND: VARY TCPIP,,STOP,LCS2
EZZ0053I COMMAND VARY STOP COMPLETED SUCCESSFULLY
EZZ4315I DEACTIVATION COMPLETE FOR DEVICE LCS2
V TCPIP,,START,LCS2
EZZ0060I PROCESSING COMMAND: VARY TCPIP,,START,LCS2
EZZ0053I COMMAND VARY START COMPLETED SUCCESSFULLY
EZZ4314I INITIALIZATION COMPLETE FOR DEVICE LCS2, LINK ETH2

Comandos TCP/IP en z/OS

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