similar to: Linux router performance

Hello, I''ve setuped an ethernet bridge on a debian sarge 3.1 with l7-filter + ipp2 shapper rules The server is a supermicro p4sci + celeron pentium 4 base 3ghz + 512Mb + 2 ethernet e1000 One interface is connected to a cisco catalyst switch The other interface is connected directly to a CMTS (a sort of router for cable modem) configured as bridge too. More than 20Mbps of bandwith

Hello, has anyone done any performance measuring of Linux Bridge + firewalling? I did search the net for a long time, to find out what would be the best way to measure the (maximum) performance/throughput. I didn't really come to a conclusion I'm satisfied with. Nevertheless I did create a small bridged test setup with 4 servers (gbit nics) and a linux bridge (2 x 100 mbit nic), all on

Hi there! I am working a lot with VoIP in my company, so I thought to use linux bridge functionality together with tc to emulate delay, jitter, packet loss, duplication, reordering etc. for testing purposes in our lab against our VoIP products. I just recognized, that a basic bridge just with it''s minumum configuration of 2 network interfaces creates latency of approx. 5ms on very low

Hi, When a IPSec tunnel is established between two peers, I understand that the "normal" situation is to have in a given moment two SAs, one for each direction of the tunnel. However, in one of my tunnels (peer P1 running GNU/Linux with setkey and racoon; peer P2 is a Cisco router) there is a large number (around 19) of SAs established (this has been observed in P1 with

Hello, My name is Fermín Galán. I have started recently to use Xen (so please forgive me in advance if I''m too "newbie" :) and I''m facing my first problems... I''m trying to create a domU, but I''m getting an error: tornado:~# xm create test.cfg -c Using config file "/etc/xen/test.cfg". Error: Device 2049 (vbd) could not be connected.

I have data that looks like this time_stamp (seconds) user_id The data is (partial) ordered by time - in that sometimes transactions occur at the same timestamp. The output I want is collated by transaction time on a per user basis, normalized by the maximum number of transactions per user, and aggregated over each day. So, if the users have 50 transactions in the first day and 20 transactions

Hi guys, I was wondering whether there's anyone who could share his/her experiences with using Microsoft RTC Library. In particular I am wondering what Ethernet capacity should I have in scenario of 30 people using Microsoft RTC Library for SIP communication (PBX is obviously Asterisk :-) ) concurrently (alaw codec being used)? What problems can be expected in such scenario? Would a good 1

Hello listmates, As some of you may know we have been having a really bad problem with Realtek Semiconductor Co., Ltd. RTL-8169 cards. See here for details: http://forum.nginx.org/read.php?24,140124,140224 So now my question is, what PCI 1 Gbit/s Ethernet adapters should I use under CentOS? If you have had a consistent positive experience with any particular chipset/brand please speak up.

an obvious fix to PIC IO intercept. In PIC IO, address from send_pio_req is physical address already. Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com> Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com> Signed-off-by: Xin Li <xin.b.li@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

I'm fairly new to the list and new to submitting patches. Can someone please verify the attached patch for running a HP-UX Trusted System with PAM and OpenSSH 3.4p1? The problem seemed to be that pam couldn't verify the user via __pamh after the call to permanently_set_uid in session.c. So I called do_pam_session prior to the call and added a function do_pam_set_tty in order to set the

Hello listmates, We are working on setting up two private networks linked by a public network which is fast (1 Gbit/s) but potentially insecure. Since the hosts on our two networks need to talk to each other, and do so securely, we have decided to use OpenVPN to connect them, making one gateway a server and the other a client. The connectivity part was easy to establish and worked like a charm.

Hi, Can you tell why my vnic built on top of an aggregation of 2 NICs of 1 Gbit/s doesn''t report a speed of 2 GBit/s ? [root at nazgul /]# dladm show-dev bge0 link: up speed: 1000Mb duplex: full bge1 link: down speed: 0Mb duplex: unknown bge2 link: down speed: 0Mb duplex: unknown bge3 link: down speed: 0Mb

I apologize in advance but I thought some of the rails users may be interested in this... I just released web2py 1.20 www.web2py.com You can see 5 min tutorial here http://www.youtube.com/watch?v=VBjja6N6IYk and a 45min tutorial here: http://www.vimeo.com/428474 New features include the inclusion of a web based testing framework - a screenshot is here:

Hi, I need to classify, using Naive Bayes and Bayes Networks, and estimate their performance using cross validation. How can I do this? I tried the bnlearn package for Bayes Networks, althought I need to get more indexes, not only the error rate (precision, sensitivity, ...). I also tried the *e1071* package, but I could not find a way to do cross-validation. Thanks for everyone. Guilherme.

Hi, recently I installed a new GBit connected iSCSI Storage to one of our fileservers. Redhat EL Linux 5.7 samba3x-3.5.4-0.83.el5, kernel 2.6.18-238.19.1.el5PAE, Dell Poweredge 1750, dual Xeon. The transfer speed is very very different, depending on the method I use. Currently I'm the only user accessing that server and there is low network traffic. I know, that there are some overheads

I am running * with a Junghanns quadbri that should allow us to integrate our ISDN house telephone system with VOIP. Preferably I would like to run a setup, so that our internal ISDN phones on an S bus are not aware that * is sitting in between. With the configuration below I run into the following problems: 1. On outbound calls, I get the normal rining call progress tone althought the

Hi, it seems that "ip address delete" will delete all addresses of the same class on an interface if it is ordered to only delete the first one: # ip a f eth0 # ip a l eth0 3: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether xx:xx:xx:xx:xx:xx # ip a a 192.168.a.b brd + dev eth0 # ip a a 192.168.c.d brd + dev eth0 # ip a d 192.168.a.b brd + dev

Hi, i need a server for 5000 clients and 50 sources at the same time Can you help me to choose the right server? I was thinking this one PowerEdge R710 n.2 x Intel Xeon E5502 (1,86GHz, cache 4MB, 4,86 GT/s QPI) 2GB Memory for 1CPU (2x1GB Single Rank UDIMMs) 1066MHz 2 X 146GB SAS 15.000rpm 3,5" hd hot-plug PERC 6/i RAID controller 256MB PCIe 2x4 1 gbit network card Thanks --------------

Hi, at my local university network, I have to make sure no student uploads more than x GB/day. So far, I give them unlimited bandwidth until they have more than y GB (y<x) upload. After that, I use the u32 filter to associate the affected IP address with a HTB class limited to the rate (remainingtraffic/remainingtime). Since the accounting is done with ipt_ACCOUNT right now and the netfilter

Hi! I want to use speex for echo cancellation in my program, but I have bad results. I will explain what my program does. it is a client-server application. I run a server in room A and a client in room B. the client sends some voice to the server and the server plays it on loudspeakers. I run another server in room B and connects to it from room A using the same application that runs