The maximum segment size (MSS) is a parameter of the options field of the TCP header that specifies the largest amount of data, specified in bytes, that a computer or communications device can receive in a single TCP segment.
Questions tagged [mss]
33 questions
15
votes
3 answers
ERROR: code ELIFECYCLE npm ERR! errno 134
To download the necessary modules(MSS), navigate with the terminal to the local folder on which the repository has been cloned by launching:
npm install
then I try to build the I project with:
npm run build-dev
but I get this error:
npm ERR! code…
Licemoon
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3
votes
3 answers
Setting MSS on per-socket basis with winsock?
As crazy as it sounds, there are situations in life when one needs to configure TCP stack parameters manually, such as MSS.
I see it can be done machine-wide as described, for example, here. But I need a way to configure it on per-tcp-socket basis.
Pavel Radzivilovsky
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3
votes
2 answers
Reduce TCP maximum segment size (MSS) in Linux on a socket
In a special application in which our server needs to update firmware of low-on-resource sensor/tracking devices we encountered a problem in which sometimes data is lost in the
remote devices (clients) receiving packets of the new firmware. The…
dennis90
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2
votes
2 answers
Is MSS value fixed in SYN packet?
I wonder how MSS is set in SYN packet? Is it a fixed value in one operating system or the value could be changed in the same operating system? I know that the value is different in different operating systems. Also is the MSS value in SYN related to…
ginny
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2
votes
0 answers
Is there some kind of limit regarding the packet size in a SSL/HTTPS connection?
In the last couple of weeks I've been developing a boot loader that performs a firmware update on a certain device. The setup is as follows:
The firmware binary and its respective SHA1 hash are stored in a web server;
The device is composed of an…
Leonardo Costa
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2
votes
1 answer
Weird IPERF observations: MSS size get decreased from what specifed
I am using IPERF to send some packets from one PC to another. Following things have been observed while testing MSS (Maximum Segment Size) with IPERF.
Send packets with MSS = 20 Bytes:
iperf -c 192.168.1.98 -P 1 -i 5 -p 5001 -M 20 -m
We were…
Uthman
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2
votes
2 answers
PHP Socket Types and TCP Window Size
So this is really a two part question with the first leading to the second.
I'm working on a PHP server project and I'm a bit confused with all the different ways I can create a socket. I've managed to create three sockets each using a new method. …
Nate Strech
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2
votes
1 answer
TCP file Transfer window size
I'm trying to reverse engineer an application, and i need help understanding how TCP window size works. My MTU is 1460
My application transfers a file using TCP from point A to B. I know the following:
The file is split into segments of size…
Mustafa El-Hilo
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1
vote
1 answer
TCP MSS over WiFi
The MTU for 802.11 is 2296 bytes. Does this mean that if TCP is used over 802.11, the MSS can only be 2296 - 40 = 2256? Can't one use a higher MSS which would then get fragmented over 802.11?
In short, is there a strict limit on the MSS for TCP?
V-Red
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1
vote
1 answer
MSS 4.0.21 doesn't proxy CANCEL request
I tested Mobicents (RestComm) Sip-Servlet (v 4.0.21) in proxy mode. Request "CANCEL" sent from UAC to UAS via Proxy Server (Apache Tomcat 8.0 + MSS 4.0.21) is not forwarded to UAS. The Sip-Servlet just returns 200 Cancelling to UAC and calls…
David R.
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1
vote
1 answer
Tomcat 9 Mobicents Sip Servlet
Does Apache Tomcat 9 MSS Edition (including Mobicents Sip Servlet) exist?
If so, where can I download it?
Thanks,
David
David R.
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1
vote
2 answers
How to calculate MSS
By default when we say about MSS for TCP ethernet packet 1460 and MTU is 1500.
MSS = MTU - 20(IP header) - 20(TCP Header) = 1460
from the above the TCP header is calculated without any options in TCP header.
In case if any packet consists option…
velpandian
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1
vote
2 answers
iOS SDK mms video streaming
Basically, I want to stream and play a MMS video with iOS SDK. I can stream some videos with MPMovieplayer but not MMS or RSTP.
I researched this, but I couldn't find a clear solution. Can anybody help me?
I tried VLC Mobile:…
Ahmet
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0
votes
0 answers
Why does my cv2 slider keep starting with "None"
My CV2 slider keeps starting with the value "None", but I need it to be an int instandly. The error code I'm getting is this: TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'
The solution I tried is as…
joergttv
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0
votes
0 answers
Does memcached send packets that fragment on IP layer using UDP and not TCP?
question is in title.
I have read that memcached fragments only on application layer for large responses.
Is this always the case?
If TCP is not used e.g. client -> a.b.c.d:UDP/11211 ; a.b.c.d:UDP/11211 -> client,
how can the memcached server know…
the_dude
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