No Connectivity to Red Hat Linux
Im failing to ping/putty my Linux box. I can ping from it and even after restarting iptables, xinetd, services, checked ports and even loopback address am at a loss?!?!?

Answer Question   |  April 20, 2012  3:53 PM
Network management software, Network testing, Networking services, Red Hat Linux, RedHat, Redhat Linux

Dark fiber vs. SONET
What is the difference between dark fiber and SONET relating to the 10GBaseER/EW. “ER is deployed over dark fiber and EW is used primarily with SONET”. I am not grasping this due to the fact that I though dark fiber is generally fiber not in use.”unlit”. And also I though ER dealt with computer networking, were [...]

Answer Question   |  January 30, 2011  9:32 PM
Network testing, Optical Networking, Optical networks

Network goes down when one particular computer connects
I have 5 computer sharing a network sharing a common router but recently i am having a problem in which when one particular computer is opened the whole network goes down and none of the computer is able to connect to the internet. what could be the reason for it? Is it because of some [...]

Answer Question   |  September 13, 2011  5:12 AM
Network monitoring, Network routers, Network testing, Routers

Stress testing network and file servers before launch
Is there an application I can run to stress test my network and file servers? I want to make sure they will not die under stress when we go live with 2000+ users. Is there a product that can do this or will we need to script something? If that is the case are there [...]

Answer Question   |  September 15, 2010  1:33 PM
File server software, File servers, Network management, Network test equipment, Network testing, Scripting

Network Testing, Slow ping
Hello all, I have just contacted a local firm to do a re-cabling to cat 6 for my company. But after the execrise. i decided to do a ping to see the time it take to ping. 1st i use a Cat6 and ping one of my server.  Below is the reply. Reply from 192.168.x.x: [...]

Answer Question   |  June 17, 2012  12:41 PM
CAT6, Network cabling, Network speed, Network testing

need recommendations for a bit error rate tester
Hi all,[Br style=”font-family: Arial, Helvetica;” />[Br style=”font-family: Arial, Helvetica;” />trying to find a BERT that supports 10Gbps, 1Gbps and Fast Ethernet so that when someone points the finger at the network team for packet lost, i can prove that theres nth wrong with the network link. Any recommendations?[Br style=”font-family: Arial, Helvetica;” />[Br style=”font-family: Arial, Helvetica;” [...]

Answer Question   |  January 19, 2010  8:31 AM
BERT Testers, Network performance, Network testing, Network troubleshooting, Networking

NTttcp errors & retransmit threshold
Hello All, We trying to do some network quality  assessment in our organization , for that we choose NTttcp tool that comes from Microsoft , and started to do some test. looking at results of some test we done each test for 1 min approx  i can see few erros and retransmit , my question [...]

Answer Question   |  November 4, 2009  11:52 AM
Network connectivity, Network monitoring, Network testing, Networking

Hp openview Training
where can i get the training of HP openview in middleeast region

Answer Question   |  October 19, 2009  11:21 AM
HP OpenView, HP OpenView Training, Network monitoring, Network testing

ping-Request timed out problem
hello i have two computers. one computer(A) is a leptop of HP the second(B) is regular pc. when A send ping to B it gets Request timed out. and when B send ping to A it gets also Request timed out. but the two of them can ping the defult gateway. i disable the firewall [...]

Answer Question   |  August 7, 2009  11:39 AM
CMD, IP, Network testing, Ping, Ping Request Timed Out, Ping Requests

CompTIA Network+ 2009
What book or online testing practice will be better to study for Comptia network+ 2009 exam?

Answer Question   |  September 16, 2011  6:04 PM
CompTIA, CompTIA certifications, CompTIA Network+, Network testing

Can’t open PDFs from certain websites
I am long-winded, so please bare with me! We are having trouble opening pdfs on certain websites. Currently PDPworks as well as one of our vendors who uses twelvehorses.com as a pdf server. We are unable to open a pdf from pdpworks at all and are hit and miss with opening pdfs from twelvehorses.com. The [...]

Answer Question   |  February 8, 2011  3:59 PM
Adobe, Adobe Acrobat 6.0, Adobe Acrobat 9 Pro, adobe reader, Cisco PIX, firefox 3.5, Internet Explorer 7, Internet Explorer 8, Network management software, Network monitoring, Network Monitoring Tools, Network testing, Networking, PDF, PDF hyperlinks

Tools for checking Network response time
Some of my users are using remote login. Access is through user VPN & internet connection is through data card.I want to test the response item.The service provider does not allow unique ip address in data card in which case ping is ruled out.What is the way out?

Answer Question   |  June 23, 2009  6:51 AM
Network performance monitoring, Network testing, Remote access, Remote response time, VPN

Intermittent access to Web portal although Ping results are positive
I’m puzzled by our network connectivity between our main office and project site. From the project site, ping results to both web servers in the main office have no loss but just could not have access to main office web portals (port 80 and 81). The ‘page disconnection’ happens very frequently and at irregular hours. [...]

Answer Question   |  March 16, 2009  5:45 AM
Network analysis, Network connectivity, Network testing, Ping, Remote office connectivity

Network
I’m not really sure but I believe that this is a netwoprk issue, we have been experincing that some of our PC’s either take to long to logon to windows domain, also some of the applications take to long to open (three min or more) e.g. Lotus Notes, iSeries emulator, IE, and, some times if [...]

Answer Question   |  January 29, 2009  4:16 PM
Network monitoring, Network performance, Network performance monitoring, Network testing

RAD MODEM LOOPING
how to take loop test on HTU E1 Leased line modem to test physical connectivity

Answer Question   |  September 3, 2008  9:37 AM
HTU E1, Loop testing, Modems, Network testing, RAD modem

network testing lab
How to set up a small testing lab for the network. I have some computers,KVM I don’t know what else is required and how to set the devices.

Answer Question   |  August 7, 2008  1:38 PM
KVM, Network testing

Connectivity Testing
1) Connectivity between DMZ Server and Application Server 2) Application Serever to Database Server 3) Load Balancer to Application Server / Database Server Please suggest the sequence of Steps to check the connectivity between these layers (Telnet, FTP Tests etc.) which will be immensely helpful for Troubleshooting.

Answer Question   |  May 28, 2008  12:30 PM
DMZ, Network connectivity, Network performance, Network testing

Tools similar to Wireshark
Does anyone have experience with shareware/freeware tools similar to wireshark. I am looking at a tool that is simple to use by application teams as they are doing development (mostly .NET) that can highlight WAN performance issues early on. It should be simple to understand and interpret by this group. Please let me know if [...]

Answer Question   |  February 27, 2012  1:31 PM
.NET applications, Free software, Freeware, Network analyzers, Network protocol analyzers, Network testing, Shareware, Wireshark

Utility to measure Network congestion
I am looking for a tool (hopefully freeware) to measure network utilization and collision rate? Hopefully an executable that does not require intallation. Yes, Performance Monitor built into Windows can do it, but I don’t have the patience to spend 2 hours trying to figure out how to set it up. The interface is not [...]

Answer Question   |  March 31, 2008  10:57 PM
Network monitoring, Network testing, Performance monitoring

Testing network performace
What is the best way or tool to test network, to see if it is running at optimal speed etc. Thanks.

Answer Question   |  August 17, 2009  3:54 AM
Network testing