Got hits Job offering in the mail

2019-05-02 Thread Dan Shechter
Got approached by a head hunter. If anyone in the community is interested and read it as is, I am just copy pasting, and I know NOTHING about this job or the head hunter that sent me the bellow email: Hii There! Greetings of the day!! I found your resume from one of the job portal and just

Re: VMWare vmx NIC order

2014-08-19 Thread Dan Shechter
t I can see - is > solvable. > > One resource I know of for vmx syntax is http://sanbarrow.com/vmx.html. > > -Adam > > > > > On August 19, 2014 8:18:32 PM CDT, Dan Shechter wrote: >> >> Thanks. >> >> I do mean about re-arrange them. Or to be mo

Re: VMWare vmx NIC order

2014-08-19 Thread Dan Shechter
Thanks. I do mean about re-arrange them. Or to be more precise, to make the aligned to what is configured in VMWare's vmx file. Do you think its not possible? On Tue, Aug 19, 2014 at 4:57 PM, Adam Thompson wrote: > On 14-08-19 06:48 PM, Dan Shechter wrote: >> >> I am insta

VMWare vmx NIC order

2014-08-19 Thread Dan Shechter
Hi All. I am installing amd64 snapshot from aug 8 on vmware workstation. This VM has 5 interfaces. I have changed them all to use vmxnet3 NIC. vmx0 on openbsd is not ethernet0 in vmware, so are all other interfaces. Any idea how to match the VMware's ethernet NIC order to OpenBSD's NIC's order

OpenBSD 5.4 VMXNET3 not recognized

2013-11-20 Thread Dan Shechter
Hi All, Running OpenBSD in VMWare workstation 10. OpenBSD 5.4 amd64 do not recognize VMXNET3, but it does recognize VMXNET: "VMware Virtual VMXNET3" rev 0x01 at pci3 dev 0 function 0 not configured Am I doing something wrong? Thanks, Dan OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2

Re: how to "aggregate" a single TCP connection, is posible?

2013-10-02 Thread Dan Shechter
Slightly OT: Set aside LACP, which is just there to establish the trunk and got nothing to do with the actual packet forwarding on the trunk, Brocade has a technology that should be able to load balance a single TCP session on all the trunk links http://community.brocade.com/community/blogs/data_

Re: ospfd filtering

2013-05-01 Thread Dan Shechter
You can't filter OSPF routes inside an area. It will break the OSPF shortest path tree. I don't know about ospfd, but on Cisco IOS you can filter routes (LSAs) between areas and you can also prevent prefixes from being inserted to the routing table of the router where the filtering commands are en

Re: Low latency and interrupt mitigation

2013-02-11 Thread Dan Shechter
P/UDP checksum reduce the latency? Best regards, Dan On Mon, Feb 11, 2013 at 2:11 PM, Mike Belopuhov wrote: > On 11 February 2013 12:53, Dan Shechter wrote: >> Thanks, >> >> Are there any other tips to reduce latency? >> > > Using pcap means copying packets, so I'

Re: Low latency and interrupt mitigation

2013-02-11 Thread Dan Shechter
Thanks, Are there any other tips to reduce latency? Best regards, Dan On Mon, Feb 11, 2013 at 1:43 PM, Mike Belopuhov wrote: > On 11 February 2013 12:19, Dan Shechter wrote: >> Hi All, >> >> I have a very latency sensitive application. I need to move packets >> fr

Low latency and interrupt mitigation

2013-02-11 Thread Dan Shechter
Hi All, I have a very latency sensitive application. I need to move packets from one interface to another I am using a quad 1000/pro Intel NIC. pcidump shows 82571EB My latency sensitive application reads packets from one em interface using libpcap and sends packet to another em interface using

Re: openbsd and vmware

2013-02-05 Thread Dan Shechter
My product, which is a networking virtual appliance, is running on ESXi without any problems. I ran it as 32 bit since I also run the product on an HW appliance which do not run 64bit. Best regards, Dan On Tue, Feb 5, 2013 at 1:03 PM, Bogdan Andu wrote: > Hello, > > A few questions related to

Re: trunking

2013-01-04 Thread Dan Shechter
I have never tried trunk on OBSD, and maybe I am miss reading the manual, but even with failover mode you should be careful from having a link connected to a switch which it's uplinks are disconnected from the core. Broadcom and Intel usually provide NIC teaming drivers for Linux/Windows which pro

Re: Running OpenBSD on Raspberry Pi

2013-01-04 Thread Dan Shechter
You have all failed to mention that the ALIX devices come with Swiss chocolates in the package! Best regards, Dan On Fri, Jan 4, 2013 at 7:36 AM, James Shupe wrote: > On 1/3/2013 8:26 PM, Aaron Mason wrote: >> On Fri, Jan 4, 2013 at 11:52 AM, James Shupe wrote: >>> On 1/3/2013 1:08 PM, Gene wro

Re: Low latency High Frequency Trading

2012-11-09 Thread Dan Shechter
: maximum SINGLE CORE "turbo" speed. Disable the other cores, > they're not helping you at all; in theory you want the biggest, > fastest cache possible, but perhaps not necessary depending on how much > software you're running. > > - Fast RAM might help, but

Re: Low latency High Frequency Trading

2012-11-08 Thread Dan Shechter
at 7:36 PM, Johan Beisser wrote: > On Thu, Nov 8, 2012 at 4:12 AM, Dan Shechter wrote: >> Hi All, >> >> >> A windows 2008 server is receiving TCP traffic from a stock exchange >> and sends it, almost as is, using UDP multicast to automated high >> frequancy t

Re: Low latency High Frequency Trading

2012-11-08 Thread Dan Shechter
When I was saying money is not a problem, it was related to server component costs... :) Best regards, Dan On Thu, Nov 8, 2012 at 8:07 PM, Ariel Burbaickij wrote: > I know that you have an impression I am getting caustic :-) but these > ideas are pretty obvious once money is not a problem fiel

Low latency High Frequency Trading

2012-11-08 Thread Dan Shechter
Hi All, A windows 2008 server is receiving TCP traffic from a stock exchange and sends it, almost as is, using UDP multicast to automated high frequancy traders. StockExchange --TCP---> windows2008 ---MCAST-UDP> On average, the time it take to do the TCP to UDP translation, using winsock, i

Re: getty

2012-08-05 Thread Dan Shechter
>From my experience with high speed rs232 on Cisco devices it doesn't work too well, and very dependent on distance and cable type. 19200 was always safe and fast enough for _my_ use. BTW, 192600 is not a "standard" speed. HTH, Dan #13685 (RS/Sec/SP) The CCIE troubleshooting blog: http://dans-n

Re: Speeding up scp over 10GigE, suggestions?

2012-07-19 Thread Dan Shechter
Hi David, Do you see high CPU during transfer? If you you don't see high CPU, it _could_ be related to round trip time and window size. HTH, Bring order to your Private VLAN network: http://marathon-networks.com On Thu, Jul 19, 2012 at 4:58 AM, David Diggles wrote: > > encryption. :-/ > > An

Re: Received 5.1 CD

2012-05-03 Thread Dan Shechter
Have anyone who also ordered the SSH book got their pre-orders ? Best regards, Dan On Thu, May 3, 2012 at 12:56 AM, wrote: > > Just received OpenBSD 5.1 CDs in Auckland, New Zealand. > Many thanks to everyone who put their time and efforts into such a nice > operating system! > > Regards, > Al

Re: LiveUSB OpenBSD and LiveCD-OpenBSD site updated

2012-04-06 Thread Dan Shechter
Hi, Sorry for the newbe question, but what is wrong with what he is doing? Best regards, Dan On Mon, Apr 2, 2012 at 8:56 AM, Jan Stary wrote: > On Apr 01 21:30:58, Girish Venkatachalam wrote: > > After a long long time. Sigh. > > Please stop spreading this. All it does is give wrong > instruc

Re: Default route not used when its out and in a a subnet scope

2012-01-30 Thread Dan Shechter
On Mon, Jan 30, 2012 at 5:36 AM, Dan Shechter wrote: > Hi All. > > I have noticed something regarding routing, and I want to make sure its > the expected behavior. > > Lets say I have interface em0 with IP 10.1.1.10/24 and a default route of > 10.1.1.1, then I change e

Default route not used when its out and in a a subnet scope

2012-01-29 Thread Dan Shechter
Hi All. I have noticed something regarding routing, and I want to make sure its the expected behavior. Lets say I have interface em0 with IP 10.1.1.10/24 and a default route of 10.1.1.1, then I change em0 IP to 10.1.1.10/31 then change it back to 10.1.1.10/24. I have noticed that my OBSD 5.0 d

OT - MIPS idle loop

2007-11-24 Thread Dan Shechter
Hi All, Sorry about the OT. In x86 I know (or think I know) that the idle loop is implemented with the HALT command. I could not find any HALT command in MIPS assembly. I tried to read the idle loop in MIPS asm, but as I don't know mips assembly I could not follow the logic in it. And fi