TCP settings?

Where are the TCP settings on an 8330m? I've looked through everything under 'options'(and that includes all the subcategories) and can't find it.

this settings are OK but (minimal), when you say "going forward" is this for performance or growth?
tcp_conn_req_max_q 128
tcp_conn_req_max_q0 1024
tcp_xmit_hiwat 16384
tcp_recv_hiwat 24576
tcp_conn_hash_size 512

Similar Messages

JIMM and the TCP settings

Hello all,
On different sites in different threads I read that many people have problems getting the JIMM messenger software running because of the network settings. I am one of them. The problem is, that there are some hints which I all tried, but there is no real solution. Perhaps someone here can help.
The problem should be the same for any other software using direct internet connection.
What I already managed: It runs using sockets connection via the APN "web.vodafone.de", which I entered in Options - TCP.
Since I'm additionally charged for this APN I would like to have it work using the blackberry APN "blackberry.net". I entered it in the TCP settings.
So here are my questions:
1) Do I need login information for the APN "blackberry.net" (user / password)?
2) Does this APN only support HTTP or also sockets? Both does not work on my BB. I get errors 118 or 125.
3) I using HTTP, which are the correct settings for port, user agent and profile in the JIMM software? If you cannot enter the correct strings, please tell me where I can copy them. (Service books etc.?)
4) Are there any additional settings I have to change?
Thanks a lot in advance.
Joerg.

I doubt you can do something about this from within Java. The TCP/IP stack is not a part of Java. It is handled by the operating system. Sorry...
/Michael

Solaris TCP settings

Hi all,
I remember there was a recommendation for the Solaris TCP settings like
tcp_time_wait_interval and tcp_conn_req_max_q. I can't seem to find it now.
Is it still relevant? If so where? I have heard that it is nolonger required
for WLS5.1. Is this correct?
thanks
-lucio

Lucio,
If you are using Solaris - then I strongly recommend this document -
http://www.rvs.uni-hannover.de/people/voeckler/tune/EN/tune.html in
particular section 5.1
regards,
-Rob
Robert Castaneda [email protected]
CustomWare http://www.customware.com
"Lucio Piccoli" <[email protected]> wrote in message
news:[email protected]..
Hi all,
I remember there was a recommendation for the Solaris TCP settings like
tcp_time_wait_interval and tcp_conn_req_max_q. I can't seem to find itnow.
Is it still relevant? If so where? I have heard that it is nolongerrequired
for WLS5.1. Is this correct?
thanks
-lucio

NIC and TCP settings in 10.4.9

All,
I am having troubles with the Yukon Gigabit Adapter 88E8053 on my MBP 17, generation 1.
I want to change the settings for the NIC, like checksum oboard, but I can't find how to do it. I have googled this, but nothing comes up. I am thinking of something like ethtool, kstat, etc. Or even the config file for the NICs.
Can anyone help?
Cheers,
John

It's managed by sysctl:
<pre class=command>sysctl net.link.ether.inet.applehwcksumrx</pre>
(or _tx) will tell you what your current recieve (transmit) setting is.
Use sysctl -w to change the value:
<pre class=command>sudo sysctl -w net.link.ether.inet.applehwcksumrx=1</pre>

WAAS: TCP-Settings with ADSL

Hello,
it is recomanded to change the values of tcp-buffer, if the edge wae is connected with adsl?
download/upload: 6000/512 kBit/s.
Kind Regards

Volker,
It depends on the RTT latency. Buffers in 4.0 should only be changed when the bandwidth-delay product exceeds the default buffer allocation.
Zach

Tunable TCP Parameters

Hello,
A couple of questions on the tunable TCP parameters:
1. How "dynamic" are the dynamic parameters? Will a change (via ndd) affect existing connections, new connections from that point on, etc? Would a server process (servicing connection requests) need to be re-started? Is a re-boot required (assuming persistence of the settings in a service init file)?
2. I'm seeing differing opinions between the web server crowd and the Sun documentation with regard to the various abort, keepalive and rexmit settings. Most of postings I see from server side folks have something close to the following:
/usr/sbin/ndd -set /dev/tcp tcp_ip_abort_cinterval 60000
/usr/sbin/ndd -set /dev/tcp tcp_ip_abort_interval 60000
/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 90000
/usr/sbin/ndd -set /dev/tcp tcp_rexmit_interval_max 10000
/usr/sbin/ndd -set /dev/tcp tcp_rexmit_interval_min 3000
Sun recommends:
Set tcp_rexmit_interval_max to at least eight times the value of tcp_rexmit_interval_min
Set tcp_ip_abort_interval to at least four times the value of tcp_rexmit_interval_max.
tcp_keepalive_interval should not be set below 15 minutes.
Our particular environment is Solaris 10 running Weblogic Server 9.2.2. Machines are typically sun4u with 32GB of memory.
Any insight is appreciated.
Thanks,
Bob

Many web server recommendations are very aggressive. The Sun recommendations are more conservative. If your server is only talking to LAN clients, then many of the TCP settings which are necessary for the internet can be tweaked quite a bit and will probably never cause a problem. If you're communicating with internet clients, then I would be careful moving things too far from default.
Darren

Solaris TCP Tuning

If you are running Weblogic on Solaris you'll need to change some of the
default TCP configuration parameters.
Sun's default TCP settings are not correct for a web server.
We noticed the server was stalling during certain peak periods. netstat
showed that many sockets opened to port 80 were in CLOSE_WAIT or
FIN_WAIT_2.
The following url is a great resource for tuning Solaris TCP/IP
http://www.rvs.uni-hannover.de/people/voeckler/tune/EN/tune.html
Changing the following TCP params solved our stalling problem. Also make
sure you up the ulimit as stated in the weblogic doc.
# to display the TCP values.
ndd /dev/tcp tcp_close_wait_interval tcp_fin_wait_2_flush_interval
tcp_keepalive_interval
# set tcp_close_wait_interval from 2400000 to 60000
ndd -set /dev/tcp tcp_close_wait_interval 60000
# set tcp_fin_wait_2_flush_interval from 675000 to 67500
ndd -set /dev/tcp tcp_fin_wait_2_flush_interval 67500
#set tcp_keepalive_interval from 7200000 to 300000
ndd -set /dev/tcp tcp_keepalive_interval 300000

Hi Victor,
We are facing similar problems as you are while running load testing using Load runner simulating a load of 100 concurrent users.
We have Oracle 8.1.7.4 client running on WebLogic 6.1 SP4 on Solaris 2.6 connecting to Oracle OPS 8.1.7 running on Solaris 2.6. We are getting core dumps while running stress testing using Load Runner for 100 concurrent users. The performance is very good for a while in the beginning of the test with CPU and memory utilization low and all of a sudden we see requests for connections queueing up on the WLS and the server crashes.
If you have found a solution to your problem Please send us details of it. Also it will be very helpful if you can send us the fix applied.
You can send your reply to my email at [email protected]
Regards,
Raj

VBAI Development Toolkit, Custom Plugin: How to get TCP data / connection ID configured in VBAI Communication Manager?

Hello,
I would like to create a custom plugin using the VBAI Dev. Toolkit. I'm using VBAI 2010 with LabView 2010.
In this step I would like to send a TCP message over a TCP connection defined in VBAI Communication Manager. How can I get the open Connection ID? Or do I have to open the connection in the Plugin? In this case, how to get the defined TCP data from the Communication Manager?
Thanks for your help.
Best regards,
Yellow

Yes you could. You can even create a simple VBAI inspection that uses the TCP step and then migrate it to LabVIEW to see how VBAI opens the connection and uses it in the TCP step. It may be more involved if you want to allow the user to configure all the TCP settings (IP Address/port) and have all your custom steps use the same settings (maybe save them to an INI and have all steps use the same INI to get the settings).
Hope this helps,
Brad

Ichat port forwarding settings

Can someone point me to the open port settings for ichat? I cannot find them on the web and the hints and tips section above this forum says I do not have permission to read.
There used to be a document with the UPD and TCP settings, they are the ones I want.
Cheers

See also my reply to Greg's post.
Apple has two Articles on the subject both are shwon as the two first hits in a Google Search (iChat Ports)
This was the 9th item http://www.ralphjohns.co.uk/iChatPicsFolder/6%20iChat%20Ports/index.html But I am baised.
I may receive some form of compensation, financial or otherwise, from my recommendation or link.
7:19 PM Sunday; November 8, 2009
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

9650 Radio Companion App- suddenly stopped working error 201 need APN settings?

The error code directs me to the Advanced options/TCP settings and it asks for APN settings. It was working fine until about a week ago and I can't find these settings anywhere. The web site the help file directs you to does NOT list Verizon network. Has all the others though.
Any help appreciated!

Please contact your carrier as it sounds like something has changed on their side. Please make sure that they are not blocking you in any way. You can also contact [email protected] for help as APN settings are specific to the carrier you are using. Please check the Nobex website for more information. www.nobexrc.com.
Hope this helps!

Server 2012 R2, TCP/IP has chosen to restrict the congestion window

Hi
I have a set of 2012 R2 remote desktop session hosts on Vmware 5.5 provided by a 3rd party. Intermittently, they will log the following event:
Log: System
Type: Warning
Event: 4230
Alert Time: 2014-08-25 13:10:23Z
Event Time: 05:10:06 AM 25-Aug-2014 UTC
Source: Tcpip
Category: None
Username: N/A
Computer: xxxxxxxxxxxx
Description: TCP/IP has chosen to restrict the congestion window for several connections due to a network condition. This could be related to a problem in the TCP global or supplemental configuration and will cause degraded throughput.
If I run a netsh int tcp show global, the following is set:
Receive-side scaling state - enabled
Chimney offload state - disabled
NetDMA state - disabled
Direct Cache Access (DCA) - disabled
Receive Window Auto-tuning level - normal
Add-on congestion control provider - none
ECN capability - enabled
RFC 1323 timestamps - disabled
Initial RTO - 3000
Receive Segment Coalescing State - enabled
Non Sack Rtt Resiliency - disabled
Max SYN Retransmissions - 2
I will admit my knowledge on these advanced tcp settings is limited. Is there anything about what is set that could cause these errors? Or do I need to worry about them?
Aaron Clegg

Hi Aaron,
For the warning event, usually we do not need to worry more about it if there is any business impaction on that.
From the description of this error, it seems to have a overload when many of the connections access to the session host. In my opinion, it may be caused by the 3rd party application or NIC influence. Have you tried to reset the TCP/IP stack?
or Could you adjust the offload setting to disable RSS also? You might refer to this
http://support.microsoft.com/kb/951037.
At the same time, I found another same error appearing on windows 8.1, could you see this?
http://social.technet.microsoft.com/Forums/windows/en-US/e3d89862-6613-4515-b504-5b111978308f/tcpip-has-chosen-to-restrict-the-congestion-window-for-several-connections-due-to-a-network?forum=w8itpronetworking
Hope this helps.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Tune tcp on AIX for Oracle11

Are there specific tcp settings that are beneficial for Oracle11 on AIX? I have found some recommendations for Oracle Application Server so I wanted to know if they also apply to the rdbms installation:
rfc1323
sb_max
tcp_mssdflt
ipqmaxlen
tcp_sendspace
tcp_recvspace
xmt_que_size
What about:
Thewall
clean_partial_conns

TCP.NODELAY
RECV_BUF_SIZE
SEND_BUF_SIZE
DEFAULT_SDU_SIZE
Should get you started. Look these up at http://tahiti.oracle.com and you will find more.
Demos here: http://www.psoug.org/reference/net_services.html

Windows latency issues 2-3 days after reboot. Sound/mouse/PC very Choppy - tcpip.sys ndis.sys NETIO.SYS

Alright, so I've tried what feels like everything. First off, I am troubleshooting for WINDOWS 7.
After I reboot, the computer functions relatively fine. Great latency, no choppyness, no matter what I do. About two to three days later, it gets incredibly bad. Specifically when browsing the internet using any browser. The audio becomes terribly choppy
as the mouse lags across the screen. Running LatencyMon, I see tcpip.sys is always at the top. This issue only seems to happen the most when internet activity usage is high. Also, ndis.sys is always up there too, as well as NETIO.SYS
Any help would be so greatly appreciated!! I run a small web server from this PC, so this is quite critical for me. It never used to happen until I recently began getting Pool_corruption blue screens, later to be discovered they were caused by my GIGABYTE
motherboards utility driver files, which I took care of.
I haven't really made any changes to my PC, besides several driver updates in attempt to resolve this. I have since updated my BIOS to the latest version. I even tried using Auslogics Boost Speed to improve the TCP settings based on on my 50mbps internet
speed. Nothing clears the lag, but a reboot, which is temporary. I used to run this PC for up to two weeks before I rebooted, no issues.
Driver Execution Time Screenshot:
http://gyazo.com/7adc868ee2b76dee4ef5c19ad19ce088
LatencyMon log below:
CONCLUSION
Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing
for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS
setup. Check for BIOS updates.
LatencyMon has been analyzing your system for 0:16:52 (h:mm:ss) on all processors.
SYSTEM INFORMATION
Computer name: ThisIsAComputerName
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware: Z87X-UD4H, Gigabyte Technology Co., Ltd., Z87X-UD4H-CF
CPU: GenuineIntel Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16324 MB total
CPU SPEED
Reported CPU speed: 3491.0 MHz
Measured CPU speed: 3868.0 MHz (approx.)
Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
MEASURED INTERRUPT TO USER PROCESS LATENCIES
The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the
signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
Highest measured interrupt to process latency (µs): 81947.411914
Average measured interrupt to process latency (µs): 8.685069
Highest measured interrupt to DPC latency (µs): 71439.589036
Average measured interrupt to DPC latency (µs): 3.104919
REPORTED ISRs
Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
Highest ISR routine execution time (µs): 147.623890
Driver with highest ISR routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation
Highest reported total ISR routine time (%): 0.100862
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.146654
ISR count (execution time <250 µs): 2354800
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0
REPORTED DPCs
DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
Highest DPC routine execution time (µs): 4384.048124
Driver with highest DPC routine execution time: ndis.sys - NDIS 6.20 driver, Microsoft Corporation
Highest reported total DPC routine time (%): 0.031341
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 347.52 , NVIDIA Corporation
Total time spent in DPCs (%) 0.201231
DPC count (execution time <250 µs): 7333801
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 423
DPC count (execution time 1000-1999 µs): 433
DPC count (execution time 2000-3999 µs): 7
DPC count (execution time >=4000 µs): 0
REPORTED HARD PAGEFAULTS
Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted
and blocked from execution.
NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
Process with highest pagefault count: avastsvc.exe
Total number of hard pagefaults 1535
Hard pagefault count of hardest hit process: 344
Highest hard pagefault resolution time (µs): 77184.982813
Total time spent in hard pagefaults (%): 0.063944
Number of processes hit: 21
PER CPU DATA
CPU 0 Interrupt cycle time (s): 45.681687
CPU 0 ISR highest execution time (µs): 147.623890
CPU 0 ISR total execution time (s): 11.875990
CPU 0 ISR count: 2354800
CPU 0 DPC highest execution time (µs): 4384.048124
CPU 0 DPC total execution time (s): 13.495186
CPU 0 DPC count: 6501345
CPU 1 Interrupt cycle time (s): 16.680073
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 3350.307935
CPU 1 DPC total execution time (s): 0.426748
CPU 1 DPC count: 107359
CPU 2 Interrupt cycle time (s): 17.093312
CPU 2 ISR highest execution time (µs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 1974.991693
CPU 2 DPC total execution time (s): 0.441413
CPU 2 DPC count: 122078
CPU 3 Interrupt cycle time (s): 17.086010
CPU 3 ISR highest execution time (µs): 0.0
CPU 3 ISR total execution time (s): 0.0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (µs): 2766.876540
CPU 3 DPC total execution time (s): 0.269897
CPU 3 DPC count: 65999
CPU 4 Interrupt cycle time (s): 8.237525
CPU 4 ISR highest execution time (µs): 0.0
CPU 4 ISR total execution time (s): 0.0
CPU 4 ISR count: 0
CPU 4 DPC highest execution time (µs): 1918.52220
CPU 4 DPC total execution time (s): 0.618606
CPU 4 DPC count: 220533
CPU 5 Interrupt cycle time (s): 8.578453
CPU 5 ISR highest execution time (µs): 0.0
CPU 5 ISR total execution time (s): 0.0
CPU 5 ISR count: 0
CPU 5 DPC highest execution time (µs): 1899.919794
CPU 5 DPC total execution time (s): 0.206159
CPU 5 DPC count: 56896
CPU 6 Interrupt cycle time (s): 11.541397
CPU 6 ISR highest execution time (µs): 0.0
CPU 6 ISR total execution time (s): 0.0
CPU 6 ISR count: 0
CPU 6 DPC highest execution time (µs): 1861.963334
CPU 6 DPC total execution time (s): 0.358036
CPU 6 DPC count: 108505
CPU 7 Interrupt cycle time (s): 12.079986
CPU 7 ISR highest execution time (µs): 0.0
CPU 7 ISR total execution time (s): 0.0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (µs): 1797.655113
CPU 7 DPC total execution time (s): 0.479542
CPU 7 DPC count: 151950

Hello and thank you for the reply!
While I am waiting for the issue to start up again, I'd just like to cover some things you mentioned in your post. :)
I only updated the bios because I was originally experiencing these issues. It was a method to hopefully resolve them, which did not work. I was very careful, and the process was a success. I updated to the most recent recommended driver for my motherboard
from the manufacturers.
As for Auslogics Boost Speed, it is not running on my computer, as it is a piece of software I only have used to clean junk files (cache/temp) for a very long time now with no issue. I have also tried updating all of my drivers with success, however that
did not solve the issue either. I even rolled back my network card driver just in case with no luck.
I have not thought of disabling my audio driver yet, being how it effects far more than just my audio when it happens. My mouse is jittery/laggy as well when no sound is playing. But other tests have shown that it may be a network issue. Next time it happens
I'll temporary disable my network drivers to see if that causes the issue to clear up.
I will be sure to mark answers which help appropriately. Thanks again! I should return with the information requested from Zigzag's wiki within 2 days of on-time, when this happens again.

T5325 Thin Clients losing remote desktop connection

My company just bought about 50 of these thin clients and they are setup to run an automatic remote desktop connection. I have the connection setup to auto start when the thin client is powered on and it just brings the user to a windows login screen. After they have logged in and leave their thin client to go on break sometimes it just brings them to a blank screen with an HP logo and the thin client has to be restarted to get back into the remote desktop, or I have to go into admin and restart the RDP connection. Any idea why this is happening? Is there a setting somewhere I need to change?
Any help would be great!

We are having this same issue and it is maddening. I have contacted HP on several occasions and I don't know if it is the language barrier or simple ignorance, but so far the issue is ongoing. I have looked high and low on the net and no one seems to be able to tell me why this is happening despite a number of plausible theories. We have a couple hundred terminals throughout the company which are spread across three servers none of which are close to congested yet.. However, the 10 or so t5325's we have are used specifically for digital signage. They run automated sessions that launch animated JAVA windows. They run great for the most part, but seemingly at random they will freeze in their tracks. The sessions drop from our terminal server and cannot be restarted remotely. After the units are power cycled they come back up directly and begin their sessions again. You can shadow these units (VNC) and the moment the display come on the unit closes the RDP session and reopens the same and start running again, odd behavior. I have tried changing session logout timers, disabling / enabling TCP settings, creating client-side refresh scripts, restarting the sessions at regular intervals via admin script, flashing BIOS and ThinPro OS to the current level, voodoo rituals, and pagan sacrifice. Yet, they still behave in exactly the same manner with no actions on my part having any apparent affect.. Currently, I am of the mind to purchase small all-in-one pc's to do the job. If anyone knows of any way to fix this PLEASE respond to this post.

Setting up router for ftp filezilla server

I want to share some files with family using filezilla ftp. I have set up my one computer running xp pro as a server using filezilla.
What I am having problems with is getting a complete port forwarding circle back to the client software. I have port 21 forwarded
to the computer that is acting as a server. However under passive mode i cannot complete this return. How do I set up my actiontec router to do this?
I am using the routers external address and the client is coming into my computer but the port (I think) needs to change on the return route. Can anyone help me?
Thanks in advance to anyone who can help.
Solved!
Go to Solution.

Is this correct?
Port Forwarding
This feature enables applications (Games, Webcams, IM & Others) by opening a tunnel between remote (Internet) computers and a specific device port inside your local area network(LAN).
Networked Computer / Device Network Address Public IP Address Remote Host IP Address Protocols WAN Connection Type Status Action localhost localhost Verizon FiOS Service – TCP Any -> 4567 All Broadband Devices Active Basement-2dc128a87 192.168.1.6
Basement FTP - TCP 20-22 -> Any All Broadband Devices Active Add
The TCP settings ? Many thanks !
Steve

TCP settings?

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