7.0;netstat (network statistics), revision 7.0, 83/09/24
NETSTAT (NETWORK_STATISTICS) -- Display network statistics
usage: NETSTAT [-A | -N node-spec] [-L] [-R secs] [-S cnt]
[-SAVE pathname] [-SINCE pathname]
FORMAT
NETSTAT [options]
This command writes a summary of network and hard disk activity to
standard output.
OPTIONS
If no options are specified, NETSTAT returns a brief summary of network
usage information for the current node.
-L Long Report -- Provide more information than the summary.
-N node-spec... Provide information on specified node(s). Multiple
hexadecimal node IDs are permitted, separated by blanks.
Node-spec may alternatively be the pathname of any object
on the remote node (i.e., //that_node).
-A Report on all nodes in the network.
-R [n] Repeat NETSTAT command every n seconds until halted by
CTRL/Q. Only counts that have changed at each iteration
are displayed, and the values represent the amount of
change rather than absolute values. The default value
for 'n' is 10 seconds.
-S [n] Send 'n' test messages to every node being listed (except
the current node) before every repeat of the display. If
this option is specified, -R must also be specified. This
option provides a minimum amount of network activity during
the wait time between NETSTAT repeats. The default value
for 'n' is 100 messages.
-SAVE pathname Save all statistics in file named 'pathname'.
-SINCE pathname Display counts that have changed since statistics were
saved in 'pathname'.
EXAMPLES
1. $ netstat
The node ID of this node is 1FB.
**** Node 1FB **** "//anger"
Up since 1983/02/01 at 8:17:06 Up for 1 day 2 hours 58 mins 4 secs
Net I/O: total= 94625 rcvs = 66912 xmits = 27713
Winchester I/O: total= 0 reads= 0 writes= 0 {NOTE 1}
System configured with 1.0 mb of memory.
2. $ netstat -L
The node ID of this node is 1FB.
**** Node 1FB **** "//anger"
Up since 1983/02/01 at 8:17:06 Up for 1 day 2 hours 58 mins 52 secs
Net I/O: total= 94756 rcvs = 67010 xmits = 27746
10436 page-in requests issued.
6473 page-out requests issued.
0 page-in requests serviced.
0 page-out requests serviced.
Detected concurrency violations -- read: 0 write: 0
Xmit count 27746 Rcv eor 0
NACKs 272 Rcv crc 767
WACKs 1639 Rcv timout 0
Token inserted 65 Rcv buserr 0
Xmit overrun 0 Rcv overrun 0
Xmit Ack par 3 Rcv xmit-err 3042
Xmit Bus error 0 Rcv Modem err 0
Xmit timout 90 Rcv Pkt error 45
Xmit Modem err 0 Rcv hdr chksum 0
Xmit Pkt error 377 Rcv Ack par 10
Delay switched OUT.
Winchester I/O: total= 0 reads= 0 writes= 0 {NOTE 1}
Not ready 0 Contrlr busy 0
Seek error 0 Equip check 0
Drive time out 0 Overrun 0
CRC error percentage: 0.00%
Last ring hardware failure detected by node 241 {NOTE 2}
on 1983/02/02 at 10:05
System configured with 1.0 mb of memory.
A total of 0 ECCC errors were detected.
Notes on Examples
1. Node 1FB is running diskless, hence the absence of Winchester disk
I/O activity.
2. At 10:05 A.M. on Feb. 2, 1983, the network cable was disturbed
immediately upstream of node 241. This information, coupled with
the network topology available from LCNODE (LIST_CONNECTED_NODES),
can help you pinpoint a hardware malfunction.