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tcpip sh dev/fu and sda>tcpip sh dev/fu

 
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labadie_1
Honored Contributor

tcpip sh dev/fu and sda>tcpip sh dev/fu

Hello

Alpha Vms 7.3-2, Tcpip 5.4 Eco 5 and Tcpip 5.4 Eco 6

$ tcpip sh dev/fu bg1201 shows some values for the lines
Bytes transferred
and
I/O Completed, in the column "SEND"
while
$ ana/sys
tcpip sh dev/fu bg1201
always shows 0 in the same column.

Known bug ?
By the way, the I/O completed value, for the column "RECEIVE", is completely different, may be some different unit is used ?

Here is what I get

$ tcpip sh dev /fu bg1201
Device_socket: bg1201 Type: STREAM
LOCAL REMOTE
Port: 1190 64562
Host: 193.248.1.156 193.248.120.120
Service:

RECEIVE SEND
Queued I/O 0 0
Q0LEN 0 Socket buffer bytes 0 0
QLEN 0 Socket buffer quota 32766 2048
QLIMIT 0 Total buffer alloc 0 0
TIMEO 0 Total buffer limit 262128 16384
ERROR 0 Buffer or I/O waits 0 0
OOBMARK 0 Buffer or I/O drops 0 0
I/O completed 43193 33196
Bytes transferred 883561024 28454816

Options: REUSEADR KEEP LINGER
State: ISCONNECTED PRIV ISCONFIRM
RCV Buff: SEL ASYNC
SND Buff: ASYNC

and

SDA> tcpip sh dev /fu bg1201
Device_socket: BG1201 Type: Stream LOCAL REMOTE
Port: 1190 64562
Host: 193.248.1.156 193.248.120.120
Service:
RECEIVE SEND
Queued I/O 0 57024
Q0LEN 0 Socket buffer bytes 0 0
QLEN 0 Socket buffer quota 32766 2048
QLIMIT 0 Total buffer alloc 0 0
TIMEO 0 Total buffer limit 262128 16384
ERROR 0 Buffer or I/O waits 130 0
OOBMARK 0 Buffer or I/O drops 130 0
I/O completed 22721472 0
Bytes transferred 884227376 0

Options: KeepAlive,Linger,ReuseAddr
State: FrcdLinger,IsConnected,NBIO,Priv
TCPstate: ESTABLISHED
TCPflags: DelAck,NoDelay,ReqScale,RcvdScale
Special: None
RCV Buff: Asynchronous,Select (PPP_DECOMPRESS_PACKET_C+00290)
SND Buff: Asynchronous
SDA>

5 REPLIES 5
Wim Van den Wyngaert
Honored Contributor

Re: tcpip sh dev/fu and sda>tcpip sh dev/fu

On vms 7.3 AND tcp 5.3 ECO 2.

tcptrace reveils traffic on the ucx device in both direction. But ucx sho dev bg only shows received bytes and IO's completed. Send stays zero.

Ana/sys shows the same info. In a check of about 10 random ports all the data was +- identical.

Fwiw

Wim
Wim
labadie_1
Honored Contributor

Re: tcpip sh dev/fu and sda>tcpip sh dev/fu

Thanks Wim

May be it is "normal"/a feature...
:-)
Solution

Re: tcpip sh dev/fu and sda>tcpip sh dev/fu

You are observing two bugs, and
they will never get fix unless someone
raises a problem report to engineering.

Some fields in the BG ucb were promoted
from word to longword size. The sensemode
code was never updated to account for this
and as a result fields such as "I/O waits",
"I/O completed" are wrapping at 65536.

Some fields in the BG ucb were moved. The
sensemode code was never updated to account
for this and as a result these fields will
display as zero.

You can trust the SDA extension, _after_
version V5.6.

Steve
labadie_1
Honored Contributor

Re: tcpip sh dev/fu and sda>tcpip sh dev/fu

Thanks Steven for the info.

This answers completely this thread.
Volker Halle
Honored Contributor

Re: tcpip sh dev/fu and sda>tcpip sh dev/fu

For reference: this problem (wrong counter values in TCPIP SHOW DEVICE/FULL) has been escalated as QXCM1001433191 against TCPIP V5.7 ECO 5

 

Volker.