Friday, October 30, 2009

VLSM Lab

I have completed the second and final VLSM Lab for my CCNA review. Surprisingly everything went pretty smooth, I believe partly due to the fact that I've been slowing down and making sure my math is correct. This actually saves more time then rushing through subnetting then seeing that you messed up your addition somewhere which causes your entire network to fail. I finally finally finally figured out how to stop my console connections from timing and logging out after 10 minutes. I knew it would be simple but couldn't for the life of me figure out the command. So for all the people out there wondering what command it is here ya go:

Router(config)#line con 0
Router(config-line)#exec-timeout time (enter number of minutes where time is)

I haven't used telnetting sessions but I'm betting the command is the same besides logging into the vty.

The VLSM had a lot of parts to with of course the main part was figuring out over-lapping subnets and creating additional subnets within the current network. I honestly was expecting something a little harder because I was seeing the problems as I was labbing everything out. I think this is a sign that I am starting to have the CCNA fundamentals down and that I'm about ready to move onto the CCNP. The on the job experience I'm getting is great, it is especially helping me with my frame-relay knowledge as I was able to grasp the concepts again very easily this time around during some of my review labs. I'm learning a lot of WAN concepts, CCVP concepts, and technologies at my job; really good stuff even though some days we are absolutely busy the entire 12 hour shift.

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