Netscout OneTouch AT 10G, User Manual

Page: 93 / 248

Chapter 5: User Tests
Connect (TCP) Test
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SYN Sent shows the number of SYNs sent by the analyzer.
ACK Received shows the number SYN/ACKs received by the
analyzer.
ACK Lost shows the number of SYNs for which a SYN/ACK was not
received within the selected time limit.
Minimum is the minimum amount of time it took to establish a
TCP connection.
Maximum is the maximum amount of time it took to establish a
TCP connection.
Average is the arithmetic mean time it took to establish a TCP
connection.
A ping test runs simultaneously with the TCP test. If the TCP test
finishes before the ICMP echo reply packet arrives, dashes will be
displayed for the ping test results. Ping results do not affect the
Pass/Fail status of the test.
Return Code specifies the end-of-test status or an error condition
if encountered.
Below the Return Code, the target server addresses are displayed.
If the request had to travel to a different network, the router’s
address is displayed. If you specified a target server’s URL, these
addresses are supplied by DNS servers. The target servers’ MACs
are also displayed.
At the bottom-left corner of the screen, an icon indicates the
test’s status:
A progress spinner indicates the test is in progress.
A green check mark indicates the test passed.
A red x indicates the test failed.
Tap the TEST AGAIN button to re-run the test. Tap the
TOOLS button to run path analysis to the target server,
launch a browser against the target server, or Telnet/SSH to the
server.