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Knowledge Base

What is the process Smarts goes through for connectivity polling? (319581)

Last Updated: 3/22/2024Categories: How toTotal Views: 2364Language:
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Resolution

What is the process Smarts goes through for connectivity polling?

Connectivity Polling value defaults
By default, the Connectivity Polling values are set as follows:

PollingInterval = 240 seconds
Retries = 3
Timeout = 700 milliseconds = 0.7 seconds

The time out grows exponentially. Retries do not include the initial poll.

"----------- 3 retries -------------"

1       1       2       3       Timeout

.7     .7     1.4     2.8

Event Time (seconds) Description:

Connectivity poll takes place 0 Connectivity monitor takes place for system

Poll fails                       0.7               Poll request timeout

Wait to poll again       58.6              Poll interval

Poll fails                        0.7              Poll request timeout

Wait to poll again       58.6              Poll interval

Poll fails                        1.4              Poll request timeout

Wait to poll again       58.6              Poll interval

Poll fails                        2.8              Poll request timeout

Wait to poll again       58.6

Wait time is calculated as: (240 - .7 -1.4 - 2.8)/4 = 58.6

The wait time to poll again is calculated by Poll interval divided by number of retries set + 1.

The 240 Polling interval also includes ping time.  However, if ping fails the first or second time and succeeds the third time, then Ping and SNMP Poll gets separated.

Example:

If Ping and SNMP Poll have total of 4 minutes Poll interval, and ping takes 2 minutes to respond, then SNMP Poll gets another 4 minutes by itself to get the data.  Ping interval is half the amount of Polling interval, and ping timeouts do not have exponential growth.

TCP Poller three way handshake and FIN

TCP Poller does a full three way handshake and FIN for both discovery and polling as shown
by the below packet capture:

No. Time Source Destination Protocol Info

1 0.000000 10.32.17.107 152.62.15.82 TCP 38788 > 426 [SYN] Seq=0 Len=0 MSS=1460

Frame 1 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38788 (38788), Dst Port: 426 (426), Seq: 0, Len: 0

Source port: 38788 (38788)

Destination port: 426 (426)

Sequence number: 0 (relative sequence number)

Header length: 28 bytes

Flags: 0x0002 (SYN)

Window size: 49640

Checksum: 0xc33d [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

2 0.000235 152.62.15.82 10.32.17.107 TCP 426 > 38788 [SYN, ACK] Seq=0 Ack=1 Win=64512 Len=0 MSS=1460

Frame 2 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38788 (38788), Seq: 0, Ack: 1, Len: 0

Source port: 426 (426)

Destination port: 38788 (38788)

Sequence number: 0 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 28 bytes

Flags: 0x0012 (SYN, ACK)

Window size: 64512

Checksum: 0x14cb [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

3 0.000256 10.32.17.107 152.62.15.82 TCP 38788 > 426 [ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 3 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38788 (38788), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38788 (38788)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

4 0.001290 10.32.17.107 152.62.15.82 TCP 38788 > 426 [FIN, ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 4 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38788 (38788), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38788 (38788)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

5 0.001433 152.62.15.82 10.32.17.107 TCP 426 > 38788 [ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 5 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38788 (38788), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38788 (38788)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 64512

Checksum: 0x418e [validation disabled]

No. Time Source Destination Protocol Info

6 0.001810 152.62.15.82 10.32.17.107 TCP 426 > 38788 [FIN, ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 6 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38788 (38788), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38788 (38788)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 64512

Checksum: 0x418d [validation disabled]

No. Time Source Destination Protocol Info

7 0.001831 10.32.17.107 152.62.15.82 TCP 38788 > 426 [ACK] Seq=2 Ack=2 Win=49640 Len=0

Frame 7 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38788 (38788), Dst Port: 426 (426), Seq: 2, Ack: 2, Len: 0

Source port: 38788 (38788)

Destination port: 426 (426)

Sequence number: 2 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

8 60.270346 10.32.17.107 152.62.15.82 TCP 38812 > 426 [SYN] Seq=0 Len=0 MSS=1460

Frame 14 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38812 (38812), Dst Port: 426 (426), Seq: 0, Len: 0

Source port: 38812 (38812)

Destination port: 426 (426)

Sequence number: 0 (relative sequence number)

Header length: 28 bytes

Flags: 0x0002 (SYN)

Window size: 49640

Checksum: 0xc33d [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

9 60.270564 152.62.15.82 10.32.17.107 TCP 426 > 38812 [SYN, ACK] Seq=0 Ack=1 Win=64512 Len=0 MSS=1460

Frame 15 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38812 (38812), Seq: 0, Ack: 1, Len: 0

Source port: 426 (426)

Destination port: 38812 (38812)

Sequence number: 0 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 28 bytes

Flags: 0x0012 (SYN, ACK)

Window size: 64512

Checksum: 0x507b [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

10 60.270584 10.32.17.107 152.62.15.82 TCP 38812 > 426 [ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 16 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38812 (38812), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38812 (38812)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

11 60.270652 10.32.17.107 152.62.15.82 TCP 38812 > 426 [FIN, ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 17 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38812 (38812), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38812 (38812)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

12 60.270878 152.62.15.82 10.32.17.107 TCP 426 > 38812 [ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 18 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38812 (38812), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38812 (38812)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 64512

Checksum: 0x7d3e [validation disabled]

No. Time Source Destination Protocol Info

13 60.271251 152.62.15.82 10.32.17.107 TCP 426 > 38812 [FIN, ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 19 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38812 (38812), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38812 (38812)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 64512

Checksum: 0x7d3d [validation disabled]

No. Time Source Destination Protocol Info

14 60.271272 10.32.17.107 152.62.15.82 TCP 38812 > 426 [ACK] Seq=2 Ack=2 Win=49640 Len=0

Frame 20 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38812 (38812), Dst Port: 426 (426), Seq: 2, Ack: 2, Len: 0

Source port: 38812 (38812)

Destination port: 426 (426)

Sequence number: 2 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

15 120.280137 10.32.17.107 152.62.15.82 TCP 38840 > 426 [SYN] Seq=0 Len=0 MSS=1460

Frame 29 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38840 (38840), Dst Port: 426 (426), Seq: 0, Len: 0

Source port: 38840 (38840)

Destination port: 426 (426)

Sequence number: 0 (relative sequence number)

Header length: 28 bytes

Flags: 0x0002 (SYN)

Window size: 49640

Checksum: 0xc33d [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

16 120.280373 152.62.15.82 10.32.17.107 TCP 426 > 38840 [SYN, ACK] Seq=0 Ack=1 Win=64512 Len=0 MSS=1460

Frame 30 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38840 (38840), Seq: 0, Ack: 1, Len: 0

Source port: 426 (426)

Destination port: 38840 (38840)

Sequence number: 0 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 28 bytes

Flags: 0x0012 (SYN, ACK)

Window size: 64512

Checksum: 0xd62f [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

17 120.280393 10.32.17.107 152.62.15.82 TCP 38840 > 426 [ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 31 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38840 (38840), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38840 (38840)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

18 120.280446 10.32.17.107 152.62.15.82 TCP 38840 > 426 [FIN, ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 32 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38840 (38840), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38840 (38840)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

19 120.280675 152.62.15.82 10.32.17.107 TCP 426 > 38840 [ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 33 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38840 (38840), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38840 (38840)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 64512

Checksum: 0x02f3 [validation disabled]

No. Time Source Destination Protocol Info

20 120.281046 152.62.15.82 10.32.17.107 TCP 426 > 38840 [FIN, ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 34 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38840 (38840), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38840 (38840)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 64512

Checksum: 0x02f2 [validation disabled]

No. Time Source Destination Protocol Info

21 120.281063 10.32.17.107 152.62.15.82 TCP 38840 > 426 [ACK] Seq=2 Ack=2 Win=49640 Len=0

Frame 35 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38840 (38840), Dst Port: 426 (426), Seq: 2, Ack: 2, Len: 0

Source port: 38840 (38840)

Destination port: 426 (426)

Sequence number: 2 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

22 180.290144 10.32.17.107 152.62.15.82 TCP 38851 > 426 [SYN] Seq=0 Len=0 MSS=1460

Frame 50 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38851 (38851), Dst Port: 426 (426), Seq: 0, Len: 0

Source port: 38851 (38851)

Destination port: 426 (426)

Sequence number: 0 (relative sequence number)

Header length: 28 bytes

Flags: 0x0002 (SYN)

Window size: 49640

Checksum: 0xc33d [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

23 180.290374 152.62.15.82 10.32.17.107 TCP 426 > 38851 [SYN, ACK] Seq=0 Ack=1 Win=64512 Len=0 MSS=1460

Frame 51 (62 bytes on wire, 62 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38851 (38851), Seq: 0, Ack: 1, Len: 0

Source port: 426 (426)

Destination port: 38851 (38851)

Sequence number: 0 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 28 bytes

Flags: 0x0012 (SYN, ACK)

Window size: 64512

Checksum: 0x8b84 [validation disabled]

Options: (8 bytes)

No. Time Source Destination Protocol Info

24 180.290395 10.32.17.107 152.62.15.82 TCP 38851 > 426 [ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 52 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38851 (38851), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38851 (38851)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

25 180.290448 10.32.17.107 152.62.15.82 TCP 38851 > 426 [FIN, ACK] Seq=1 Ack=1 Win=49640 Len=0

Frame 53 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38851 (38851), Dst Port: 426 (426), Seq: 1, Ack: 1, Len: 0

Source port: 38851 (38851)

Destination port: 426 (426)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 1 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

No. Time Source Destination Protocol Info

26 180.290676 152.62.15.82 10.32.17.107 TCP 426 > 38851 [ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 54 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38851 (38851), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38851 (38851)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 64512

Checksum: 0xb847 [validation disabled]

No. Time Source Destination Protocol Info

27 180.291047 152.62.15.82 10.32.17.107 TCP 426 > 38851 [FIN, ACK] Seq=1 Ack=2 Win=64512 Len=0

Frame 55 (60 bytes on wire, 60 bytes captured)

Ethernet II, Src: Cisco_bb:93:bf (00:12:da:bb:93:bf), Dst: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4)

Internet Protocol, Src: 152.62.15.82 (152.62.15.82), Dst: 10.32.17.107 (10.32.17.107)

Transmission Control Protocol, Src Port: 426 (426), Dst Port: 38851 (38851), Seq: 1, Ack: 2, Len: 0

Source port: 426 (426)

Destination port: 38851 (38851)

Sequence number: 1 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0011 (FIN, ACK)

Window size: 64512

Checksum: 0xb846 [validation disabled]

No. Time Source Destination Protocol Info

28 180.291063 10.32.17.107 152.62.15.82 TCP 38851 > 426 [ACK] Seq=2 Ack=2 Win=49640 Len=0

Frame 56 (54 bytes on wire, 54 bytes captured)

Ethernet II, Src: SunMicro_68:a0:c4 (00:03:ba:68:a0:c4), Dst: Cisco_bb:93:bf (00:12:da:bb:93:bf)

Internet Protocol, Src: 10.32.17.107 (10.32.17.107), Dst: 152.62.15.82 (152.62.15.82)

Transmission Control Protocol, Src Port: 38851 (38851), Dst Port: 426 (426), Seq: 2, Ack: 2, Len: 0

Source port: 38851 (38851)

Destination port: 426 (426)

Sequence number: 2 (relative sequence number)

Acknowledgement number: 2 (relative ack number)

Header length: 20 bytes

Flags: 0x0010 (ACK)

Window size: 49640

Checksum: 0xc335 [validation disabled]

Detectable by VMware SkylineTM

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