1 /BEGIN
/BEGIN=<time> Used to delay the start of monitoring. The time is entered as a VMS absolute time. E.g. 22:13 would start the monitoring at 10:13pm today. If it is not specified the monitoring begins immediately.
2 /CSV
/CSV=<filespec> /NOCSV (D) If specified, writes data to the CSV filespec. Data is written in a format which is compatible with the T4 utility or importing into a spreadsheet for further analysis..
3 /DISPLAY
If specified, writes data to SYS$OUTPUT:. If neither /CSV or /DISPLAY qualifiers are present on the command line, then /DISPLAY is the default. If the /CSV qualifier is given, then use the /DISPLAY qualifier to simultaneously write data to the CSV file and display the data to SYS$OUTPUT.
4 /END
/END=<time> Used to end the monitoring. The time is entered as a VMS absolute time. E.g. 22:13 would stop the monitoring at 10:13pm today.
5 /SAMPLE
/SAMPLE=<seconds> /SAMPLE=10 (D) Specifies the sampling interval. Snapshots of the statistics are captured at the end of the sample interval.
6 /SHOW
/SHOW[=(option[,...])]
/SHOW=TCP (D)
The following options can be selected:
ALL Print statistics for each of the registered subsytems.
[NO]INET Print kernel level statistics. The counters are:
Stats - if set, then profiling is enabled
PPE - if set, then the packet processing engine
is running.
%Idle - when PPE is running, this captures the
percentage CPU idle time
%Busy - when PPE is running, this captures the
percentage CPU busy time
Toggle - number of times PPE has toggled between
running and hibernating. Should be
fairly stable.
Move - Number of time PPE has moved between CPUs.
Conf - PPE reconfigurations across CPUs.
#Krp - TCP/IP kernel work queue contains kernel
request packets (KRPs). This statistice
represents the #Krps processed.
AvgQKrp - Average number of system cycles it takes
to queue each Krp on the KRP Queue.
AvDqKrp - Average number of system cycles it takes
to dequeue a KRP from the KRP Queue.
KrpQMax - Maximum length of the KRP queue.
KrpFrks - Not applicable to PPE. For the scalable
kernel this is the number of times a KRP
must be queued from one CPU to the TCP/IP
CPU via the system FORK_TO_CPU function.
This is an expensive operation.
[NO]TCP Print TCP statistics, similar to those available via
'netstat -p tcp'. The following statistcs are
displayed:
SPEED
-----
These include packet-rate and bit-rate for both
receive and transmit data.
TxPk/s - transmit data packet rate
TxMb/s - data rate in Mbits per second
RxPk/s - recieve packet rate
RxMb/s - data rate in Mbits per second
PACKET_SIZE
-----------
Average packet size over the sample period.
This is calcualted as data_packets/data_bytes
for both transmit and receive. The data is
derived from the RAW data:
TxPkSz - average number of bytes per packet sent
RxPkSz - average number of bytes per packet
received
CONNECTIONS
-----------
Connection statistics for both incoming and outgoing
connections. This displays the number of incoming and
outgoing connections. The data captured is:
In - number of connections accepted
Out - number of connections established
ERRORS
------
Not all statistics gathered here are necessarily
errors in the traditional sense. Many are protocol
related events which are bundled into this category.
The counters captured are:
RxDup - duplicate packets + packets with some
duplicated data.
RetxPk - data packets retransmitted.
RetxTo - retransmit timeouts
RetxDrp - connections dropped in retransmit
timeout
KpAlv - keepalive timeouts
KpDrp - connections dropped in keepalive