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CHAPTER 4 Fault Repair Procedures
[NETSTAT]: Command Used to Specify Network Status.
NETSTAT command is used to specify the cause of the problem (network problem, host setting problem
or the interface problem). This command can specify the log of the packet error, indicate packet transfer on
port base and protocol base. Refer to the command help for further details on netstat command.
Method: netstat
C:\TEMP>netstat -an
Proto(1) Local Address(2) Foreign Address(3) State(4)
TCP router1:2972 router2:netbios-ssn ESTABLISHED
TCP router1:3809 router3:netbios-ssn ESTABLISHED
UDP router1:53 *
UDP router1:53 *
. . . .
. . . .
C:\TEMP>netstat -s
IP Statistics(a)
Packet Received =129314
Received Header Errors =0
Received Address Errors =0
.
.
ICMP Statistics(b) Received Sent
20(14) 208(15)
Messages 0 0(17)
Errors 0 0
Destination Unreachable 0 0
Time Exceeded 0 0
.
.
TCP Statistics
Active Opens =18613
Passive Opens =132
Failed Connection Attempts =1547
. .
. .
UDP Statistics(d)
Datagrams Received =35313
No Ports =353
Receive Errors =15710
Datagram Sent =15710
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