Controller Based WLANs

Description about "show netstat" command?

Aruba Employee

Question: Description about "show netstat" command?

 

Product and Software: This article applies to all Aruba Product and Software

This CLI command prints the network connections on the Aruba Controller. By  default, “show netstat”  displays  a  list of open sockets. Description of each column in the output:
 
Active Internet connections:
                (TCP, UDP, raw)
 
Proto:
The protocol (tcp, udp, raw) used by the socket.
 
Recv-Q:
The count of bytes not copied by the user program connected to this socket.
NOTE: Monitor this column to make sure it does not have a constantly growing value.
 
Send-Q:
The count of bytes not acknowledged by the remote host.
 
Local Address:
Address  and  port  number of the local end of the socket.  Unless the --numeric (-n) option is specified, the socket address is resolved to its canonical host name (FQDN), and the port number is translated into the  corresponding service name.
 
Foreign Address:
Address and port number of the remote end of the socket.  Analogous to "Local Address."
 
State:
The state of the socket. Since there are no states in raw mode and usually no states used in UDP, this column may be left blank. Normally this can be one of several values:

Below are the states can be seen:

ESTABLISHED
The socket has an established connection.
NOTE: Monitor this column to make sure the state for each session looks normal and does not stay in any “CLOSE_WAIT” or “TIME_WAIT” for too long.
 
SYN_SENT
The socket is actively attempting to establish a connection.
 
SYN_RECV
A connection request has been received from the network.
 
FIN_WAIT1
The socket is closed, and the connection is shutting down.
 
FIN_WAIT2
Connection is closed, and the socket is waiting for a shutdown from the remote end.
 
TIME_WAIT
The socket is waiting after close to handle packets still in the network.
 
CLOSED
The socket is not being used.
 
CLOSE_WAIT
The remote end has shut down, waiting for the socket to close.
 
LAST_ACK

The remote end has shut down, and the socket is closed. Waiting for acknowledgement.
 
LISTEN
The socket is listening for incoming connections. 

 

rtaImage7.png

 

NOTE: The command output is big, above is part of it for reference.

 

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Last update:
‎11-10-2014 07:49 AM
 
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