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2018-12-06 09:35:44 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting a buffer

2018-12-06 09:34:33 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting a buffer

2018-12-06 09:34:04 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting hard a b

2018-12-06 09:33:22 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hardly hitting a

2018-12-06 09:32:43 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting a buffer

2018-12-06 09:32:24 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting a buffer

2018-12-06 09:29:54 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting with 1Gbit interface speed hitting a buffer

2018-12-06 09:17:46 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to take a closer look on it but actually it looks like micro-bursting on 1Gbit interface rate hitting a buffer or

2018-12-06 09:17:24 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

I need to dive deeper but actually it looks like micro-bursting on 1Gbit interface rate hitting a buffer or policer.

2018-12-06 08:54:44 +0000 commented answer TCP Slow Start Graph

Hi @ille , the latest question Q1: I think the server didn't increase it's window because it didn't observe incoming tra

2018-12-06 08:53:31 +0000 commented answer TCP Slow Start Graph

Hi @ille , the latest question Q1: I think the server didn't increase it's window because it didn't observe incoming tra

2018-12-05 19:17:38 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

Could you please enable SACK on both endpoints and do the capture again? An absence of SACK option makes loss recovery v

2018-12-05 19:17:28 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

Could you please enable SACK on both endpoints and do the capture again? An absence of SACK option makes loss recovery v

2018-12-05 18:12:54 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

Could you please enable SACK on both endpoints and do the capture again? An absence of SACK option makes loss recovery v

2018-12-05 18:11:53 +0000 commented question Excessive TCP Dup ACK and TCP Retransmissions

Could you please enable SACK ob both endpoints and do the capture again? An absence of SACK option makes loss recovery v

2018-12-05 10:13:53 +0000 received badge  Nice Answer (source)
2018-12-03 14:21:11 +0000 received badge  Rapid Responder (source)
2018-12-03 14:21:11 +0000 answered a question What exactly mean TSval and TSecr

Chris Greer recently recorded nice introductory video on the subject.

2018-12-03 10:48:15 +0000 commented answer Filter based on other field value

By clicking on the packet you define a source for the filter argument. Otherwise if you have for example 100 different p

2018-12-03 10:48:07 +0000 commented answer Filter based on other field value

By clicking on the packet you define a source for the filter argument. Otherwise if you have for example 100 different p

2018-12-03 10:43:13 +0000 commented answer Filter based on other field value

By clicking on the packet you define a source for the filter argument. Otherwise if you have for example 100 different p

2018-12-02 15:55:11 +0000 edited answer Filter based on other field value

Have you tried the next format? ip.addr==${gtp.user_ipv4}

2018-12-02 15:06:03 +0000 commented answer Filter based on other field value

Keep in mind you have to select a packet containing gtp.user_ipv4 field first and then type the filter expression.

2018-12-02 14:29:38 +0000 answered a question Filter based on other field value

Have you tried the next format? ip.addr==${gtp.user_ipv4}

2018-12-02 14:29:38 +0000 received badge  Rapid Responder (source)
2018-12-01 14:35:14 +0000 edited answer what happened to the network?(from a noob)

From the captures you have provided I don't see any serious problem. FIN, ACK and RST This is quite usual way to s

2018-12-01 14:33:19 +0000 answered a question what happened to the network?(from a noob)

From the captures you have provided I don't see any serious problem. FIN, ACK and RST This is quite usual way to s

2018-12-01 14:33:19 +0000 received badge  Rapid Responder (source)
2018-12-01 14:17:33 +0000 commented answer TCP is limiting the use of bandwidth

@Christian_R: good observations! Interesting thing is - the second retransmission was not necessary because: a) it was

2018-12-01 14:17:16 +0000 commented answer TCP is limiting the use of bandwidth

@Christian_R: good observations! Interesting thing is - the second retransmission was not necessary because: a) it was

2018-11-30 10:49:55 +0000 edited answer TCP is limiting the use of bandwidth

Below are some observations / thoughts about the case Receiver Window size was not "negotiated down from 8192 to 513"

2018-11-30 10:49:31 +0000 edited answer TCP is limiting the use of bandwidth

Below are some observations / thoughts about the case Receiver Window size was not "negotiated down from 8192 to 513"

2018-11-30 10:45:14 +0000 edited answer TCP is limiting the use of bandwidth

Below are some observations / thoughts about the case Receiver Window size was not "negotiated down from 8192 to 513"

2018-11-30 10:43:15 +0000 answered a question TCP is limiting the use of bandwidth

Below are some observations / thoughts about the case Receiver Window size was not "negotiated down from 8192 to 513"

2018-11-29 08:37:50 +0000 edited answer Capture without File Contents

Try to use packet slicing option: Choose a size (snaplen) in Bytes to capture only headers data therefore a payload w

2018-11-29 08:36:10 +0000 edited answer Capture without File Contents

Try to use packet slicing option: Choose a size (snaplen) in Bytes to capture only headers data therefore a payload w

2018-11-29 08:35:24 +0000 received badge  Rapid Responder (source)
2018-11-29 08:35:24 +0000 answered a question Capture without File Contents

Try to use packet slicing option: Choose a size (snaplen) in Bytes to fit only headers data therefore a payload will

2018-11-28 09:34:36 +0000 commented question time sequence(tcp trace)

Could you show the picture to look at? And which part is confusing you.

2018-11-28 05:33:53 +0000 commented question TCP is limiting the use of bandwidth

Hello, Doing such kind of analysis (TCP performance issues) demands looking at PCAPs, highly preferably sender-side on

2018-11-28 05:33:44 +0000 commented question TCP is limiting the use of bandwidth

Hello, Doing such kind of analysis (TCP performance issues) demands looking at PCAPs, highly preferably sender-side one

2018-11-28 05:33:20 +0000 commented question TCP is limiting the use of bandwidth

Hello, Doing such kind of analysis (TCP performance issues) demands looking at PCAPs, highly preferably sender-side ones

2018-11-28 05:32:47 +0000 received badge  Rapid Responder (source)
2018-11-28 05:32:47 +0000 answered a question TCP is limiting the use of bandwidth

Hello, Doing such kind of analysis (TCP performance issues) demands looking at PCAPs, highly preferably sender-side ones

2018-11-24 06:12:51 +0000 edited answer tcp checksum offload and non-zero value

Just checked some of my traces. So I found the next. Among the packets with wrong checksum: All TCP checksums I've s

2018-11-24 06:11:37 +0000 commented answer tcp checksum offload and non-zero value

@vsharker The statistics I wrote about in my answer was regarding packets that ALL have "Incorrect checkum" warning. Ju

2018-11-24 06:10:00 +0000 commented answer tcp checksum offload and non-zero value

@vsharker The statistics I wrote about in my answer was regarding packets that ALL have "Incorrect checkum" warning. Ju

2018-11-24 06:09:15 +0000 commented answer tcp checksum offload and non-zero value

@vsharker The statistics I wrote about in my answer was regarding packets that ALL have "Incorrect checkum" warning. Ju

2018-11-24 06:08:00 +0000 commented answer tcp checksum offload and non-zero value

@vsharker The statistics I wrote about in my answer was regarding packets that ALL have "Incorrect checkum" warning. Ju

2018-11-24 06:07:02 +0000 commented answer tcp checksum offload and non-zero value

@vsharker The statistics I wrote about in my answer was regarding packets that ALL have "Incorrect checkum" warning. Ju