Do you have an ethereal trace showing TCP issues?

Thanks,
Brian Desmond
[EMAIL PROTECTED]
 
c - 312.731.3132
 
 

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:ActiveDir-
> [EMAIL PROTECTED] On Behalf Of Medeiros, Jose
> Sent: Wednesday, April 26, 2006 5:04 PM
> To: [email protected]
> Subject: RE: [ActiveDir] Is there a way to clear the Netstat -p tcp -s
> statistics with out rebooting Windows?
> 
> I could not agree with you more, and I am not trying to undermine
> Microsoft servers, however I am expected to solve this issue, and in
> order to reboot, I am required to gather data to justify why it is
> needed.
> 
> I've already ran netstat -s, winmsd, srvinfo, netdiag, and the server
> has been up about 130 days, however I can not provide the data that
> they want to see that can determine why I need to reboot.
> -------------------------------------------------------
> C:\Documents and Settings\Administrator>netstat -s
> 
> IPv4 Statistics
> 
>   Packets Received                   = 1646459205
>   Received Header Errors             = 0
>   Received Address Errors            = 116182
>   Datagrams Forwarded                = 0
>   Unknown Protocols Received         = 0
>   Received Packets Discarded         = 0
>   Received Packets Delivered         = 1646342944
>   Output Requests                    = 1932332448
>   Routing Discards                   = 0
>   Discarded Output Packets           = 0
>   Output Packet No Route             = 0
>   Reassembly Required                = 162
>   Reassembly Successful              = 81
>   Reassembly Failures                = 0
>   Datagrams Successfully Fragmented  = 96
>   Datagrams Failing Fragmentation    = 0
>   Fragments Created                  = 206
> 
> ICMPv4 Statistics
> 
>                             Received    Sent
>   Messages                  139403      146858
>   Errors                    0           0
>   Destination Unreachable   268         7708
>   Time Exceeded             0           0
>   Parameter Problems        0           0
>   Source Quenches           0           0
>   Redirects                 0           0
>   Echos                     93318       45832
>   Echo Replies              45816       93318
>   Timestamps                0           0
>   Timestamp Replies         0           0
>   Address Masks             0           0
>   Address Mask Replies      0           0
> 
> TCP Statistics for IPv4
> 
>   Active Opens                        = 518972
>   Passive Opens                       = 9060910
>   Failed Connection Attempts          = 32498
>   Reset Connections                   = 58588
>   Current Connections                 = 22
>   Segments Received                   = 1561177256
>   Segments Sent                       = 1850738357
>   Segments Retransmitted              = 4936519
> 
> UDP Statistics for IPv4
> 
>   Datagrams Received    = 81338321
>   No Ports              = 22057795
>   Receive Errors        = 0
>   Datagrams Sent        = 76769367
> 
> -------------------------------------------------------------
> 
> Summary Format - Seems to also be having TCP/Ip out of sequence timing
> issue's.
> 
> 
> 
> Frame Status Source      Destination         Summary
> Bytes
>      Delta Time      Abs time
>   4967   *******grp     *****p01   TCP: D=1331 S=1435 ACK=1695680221
> SEQ=2840954384 LEN=22 WIN=16405
>    76 0.000.166    4/24/2006 9:15:42 AM
>   4968   *****p01 *****Clusternode       TCP: D=1435 S=1331
> ACK=2840954406 SEQ=1695680221 LEN=68 WIN=16210
>   122 0.000.282    4/24/2006 9:15:42 AM
>   4969   *****Clusternode     *****p01   TCP: D=1331 S=1435
> ACK=1695680289 SEQ=2840954406 LEN=35 WIN=16337
>    89 0.000.608    4/24/2006 9:15:42 AM
>   4970 # *****p01 *****Clusternode Expert: Ack Too LongTCP: D=1435
> S=1331 ACK=2840954441 WIN=16175
>    60 0.192.663    4/24/2006 9:15:42 AM   ß----- Next Sequence being
> requested is 1695680289 (please see detail format)
> 
>   4971 # 8********App01 *****Clusternode Expert: Window FrozenTCP:
> D=1435 S=1331 ACK=2840954441 SEQ=1695680288 LEN=1 WIN=16175  ß-----
> Next Sequence being requested is 1695680289 (please see detail format)
>    60 29.952.657   4/24/2006 9:16:12 AM
>   4972 # *****Clusternode     *****p01 Expert: Window FrozenTCP: D=1331
> S=1435 ACK=1695680289 WIN=16337
>    60 0.000.052    4/24/2006 9:16:12 AM
>   4973 # *****p01 *****Clusternode     Expert: Window FrozenTCP: D=1435
> S=1331 ACK=2840954441 SEQ=1695680288 LEN=1 WIN=16175
>    60 30.202.584   4/24/2006 9:16:42 AM
>   4974 # *****Clusternode    *****p01  Expert: Window FrozenTCP: D=1331
> S=1435 ACK=1695680289 WIN=16337
>    60 0.000.061    4/24/2006 9:16:42 AM
> 
> 
> 
> -----------------------------------------------------------------------
> -----
> 
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:ActiveDir-
> [EMAIL PROTECTED] On Behalf Of Al Mulnick
> Sent: Wednesday, April 26, 2006 1:41 PM
> To: [email protected]
> Subject: Re: [ActiveDir] Is there a way to clear the Netstat -p tcp -s
> statistics with out rebooting Windows?
> 
> Jose, now might be a good time to rethink that idea of rebooting.
> I've personally been responsible for systems that stay up and running
> (when left alone) for years at a time.  Used to laugh that the servers
> and applications had better uptime than the telephones.
> 
> Regular reboots is something that started in 3.51 when memory
> management needed additional help and applications didn't behave nearly
> as well. Since then, the OS has become more agressive about protecting
> itself from such applications and the issues caused by them.
> 
> Being able to stop or restart a network interface is something you
> should plan for.  Why? Because the hardware can fail and you may need
> to update it.  As for software installation, the world around you
> changes.  For example, VMS goes away ;)  That implies that you should
> try to somewhat keep up with the world around you to at least be a part
> of it. (by you, I refer to the computing platform including layers 8-9
> of the stack).  There are many times that a solution that's running
> fine is impacted by something new.  That requires changes.
> Morale: you should plan for downtime on a periodic basis and if you
> want high availability on a cheap(er) platform (side note: it's cheap
> because of how many variables there are; you can literally build
> thousands of combinations of hardware and expect it to be supported vs.
> the model of fewer variable but higher cost machines i.e. vax hosts or
> Apple Macs, etc. They're not made of as many variable parts that a
> Windows machine can be composed of. Generally, the more variables, the
> more likely something might not work - Microsoft does a good job of
> reducing that problem impact by abstracting the hardware complexities
> from you) you need to act like the big iron planners and spend the time
> planning it for high availability.  That often adds a lot of overhead
> to the deployment and aquisition process and is often overlooked, but
> truthfully, the processes and architecture of your deployment will make
> all the difference.  Since you have the proven processes, it only
> remains to spend the investment on planning.
> 
> My $0.04 worth.  I'm not trying to harp, but to point out that
> rebooting weekly/daily/monthly or any regularly scheduled basis is
> actually not a "normal" process of ownership when it comes to Microsoft
> platforms. There are actually some deterrents to doing that as you wait
> for that server to normalize again.  If you have issues that cause you
> to want to reboot, it's not normal and should be addressed.
> 
> Al
> 
> P.S. that might have been closer to $0.05 worth as I've rambled longer
> than normal :)
> 
> On 4/26/06, Medeiros, Jose <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > Hi Brian,
> >
> >
> >
> > Thank you for the reply. Unfortunately, these are production database
> > clusters and I do not have the luxury of disabling and re-enabling
> the
> > Nic interface on the servers. Also the standard Support Pak that we
> > use is 7.2, and I am not allowed to install the latest and greatest
> > drivers, and or patch's on existing servers (However our new builds
> > are now using HP Support Pak 7.4). It seems that some one at
> > Microsoft's marketing and Sales department told the managers here at
> > Intel that the servers can stay up for over a year with out requiring
> > a reboot ( We are only allowed to power down the servers once a year
> > during new years eve  during our site power shutdown ).
> >
> >
> >
> > The management here also seems to think that it's okay to push out
> MOM
> > server monitoring agents & other patch's with out a reboot, or having
> > them affect the existing applications such as Oracle and other third
> > party applications installed.
> >
> > ( These systems are replacing our VAX and VMS systems and are
> expected
> > to have the same uptime )
> >
> >
> >
> > I have been working with NT server since NT 3.51 and have always
> found
> > that it best to reboot a server every few weeks to clear hung DLL's
> > and Memory leaks that may be occurring.
> >
> >
> >
> >
> >
> > But thank you so much for your suggestion, I could not agree with you
> more.
> >
> >
> >
> >
> >
> > Jose J
> >
> >
> >
> >
> > ________________________________
> >
> >
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Brian
> Desmond
> > Sent: Tuesday, April 25, 2006 6:59 PM
> >
> > To: [email protected]
> > Subject: RE: [ActiveDir] Is there a way to clear the Netstat -p tcp -
> s
> > statistics with out rebooting Windows?
> >
> >
> > To: [email protected]
> > Subject: RE: [ActiveDir] Is there a way to clear the Netstat -p tcp -
> s
> > statistics with out rebooting Windows?
> >
> >
> >
> >
> >
> > Have you tried disabling and reenabling the interface?
> >
> >
> >
> > You could also upgrade to the 7.4 support pak and see what happens?
> > I'm running 7.3 and 7.4 heavily in production…
> >
> >
> >
> >
> > Thanks,
> > Brian Desmond
> >
> > [EMAIL PROTECTED]
> >
> >
> >
> > c - 312.731.3132
> >
> >
> >
> >
> >
> > ________________________________
> >
> >
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Medeiros,
> > Jose
> > Sent: Tuesday, April 25, 2006 6:03 PM
> > To: [email protected]
> > Subject: [ActiveDir] Is there a way to clear the Netstat -p tcp -s
> > statistics with out rebooting Windows?
> >
> >
> >
> > Greetings fellow AD Guru's,
> >
> > I have been trying to trouble shoot some intermittent network
> > connectivity issues with our Active Directory domain controllers and
> > our SQL database clusters, our network group doing the network packet
> > capture, believe that our HP Proliant Dl-380 G3 servers using HP
> > support pak 7.2 on 2003 server have a bad network driver.
> >
> > Is there a way to clear the Netstat -p tcp -s statistics with out
> > rebooting a Windows 2003 server?
> >
> >
> >
> > Sincerely,
> >
> > Jose Medeiros
> >
> > MCP+I, MCSE, NT4 MCT
> >
> > 408-765-0437 Direct
> >
> > 408-449-6621 Cell
> >
> >
> >
> .BövrzÊryi
> .+w֧B+v*rz   Vryi˽箊

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