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Monthly Archives: July 2011
Possible Reasons for LAN Traffic Congestion
If you are experiencing slowness on your LAN here are some possible reasons that you can investigate:
Useful FTOS “show” commands
There are several FTOS “show” commands that can provide very useful information regarding Force10 Networks switches/routers. I have outlined a number of these very useful commands with a short description of each below. However, keep in mind that although most … Continue reading
Use Perl’s regex to count the # of words in a file
In the below code I use Perl’s regex capabilites to count the # of words in a file. Notice I used “\s” in the regex expression to account for not only spaces but also tab and new line characters. In … Continue reading
Posted in Perl, Programming Languages
Tagged count words, file word count, file word counter, open file, perl, perl close file, perl code, perl file input, perl open file, perl read file, perl regex, perl regular expressions, perl word count code, regex, regex expression, regular expressions, whitespace, word counter
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Port Monitoring on Force10 Switches
In this lab I will demonstrate how to do port monitoring on Force10 switches and capture the packets using a network protocol analyzer (Wireshark in this case). Port monitoring allows the copying of all incoming/outgoing packets on a specific port … Continue reading
Setup VRRP with Force10 Switches
In this lab I setup Force10 switches with Virtual Router Redundancy Protocol (VRRP). VRRP is a redundancy protocol used to eliminate a single point of failure between a gateway and its respective hosts within the same subnet. I use three … Continue reading