How To Set Up A Cisco Lab On Linux (CentOS 5.2) | HowtoForge - Linux Howtos and Tutorials
http://www.howtoforge.com/how-to-set-up-a-cisco-lab-on-linux-centos5.2
Lab
How To Set Up A Cisco Lab On Linux (CentOS 5.2) | HowtoForge - Linux Howtos and Tutorials
http://www.howtoforge.com/how-to-set-up-a-cisco-lab-on-linux-centos5.2
Testing Network Changes When No Test Labs Exist? [Slashdot Comments]
http://ask.slashdot.org/comments.pl?sid=1489564&cid=30547976 slashdot comments on the topic listing useful network testing and emulation tools