Cisco Mind Share Game
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Cisco Mind Share Game – The Cisco Learning Network
I downloaded the demo version of this game for three purposes:
1. To see if this would be helpful in studying for the CCNA exam.
2. To evaluate it for the Game Design class.
3. To see if I might want to buy it for $49.95.
As I first opened the game (it is a very large download and install), I thought it was geared for the “younger generations.” It is a learning game — quiz game if you will. Those have a tendency to be, well, boring! As I started through the game, I thought it was a good study tool, but not sure of it’s “stickiness.” Would someone play this to learn/review instead of the more “traditional” means. Then the bugs came out…they started to eat my bonus points if I hadn’t answered that portion of the question yet. I found the game play to be very interesting, and definitely player-centric. I later was working strategy of finding questions that I wanted to answer right away — then stacking up my points on those questions.
I still am not sure how anything is scored, or what the scores mean; but it is definitely worth a try. If you’re not into networking, just look at it for the design and learning aspects of it.
Colorful “Cheat” Sheets for Networking Topics
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Cheat Sheets – PacketLife.net – check these out. Looks like a very good review before sitting for the CCNA exam. I might just have to give up mind mapping! 
Creating VLANs on 29xx Catalyst Switches
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To create VLANs you must first enter the vlan database command at the privileged exec prompt. That should move you to the Switch(vlan)# prompt. You can then set up your VLANs with the vlan xx name yyyyyy command where xx and yyyyyy are the vlan number and name respectively. See Creating VLANs on Catalyst Switches for more information on assigning ports, etc.
Getting to Know Your Routing Table
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Subnetting, supernetting, Level 1, 2, parent, child…what does it all mean?
Here are a couple of resources from Rick Graziani about just that!
http://docs.ksu.edu.sa/PDF/Articles17/Article170985.pdf
http://www.scribd.com/doc/2171116/TheRoutingTableBasedOnPDF
Administrative Distance
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I like to think of administrative distance as the “closeness” or “trustworthiness” measure.
The lower the value of administrative distance, means the more trustworthy.
With 0 — being directly connected, 1 — being a static route.
For the CCNA exam, it might be a good idea to be familiar with the default values for the administrative distances for each routing protocol.
The administrative distance can be found on the routing table from the show ip route command.
Cisco – What Is Administrative Distance?
Changing the Configuration Register from ROMMON
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Occassionally, I see the rommon 1> prompt when I log into one of our lab routers. Usually, that means that the configuration register is set to boot from rommon. So…to change that type:
rommon 1 >confreg 0×2102
In order for that to take effect, power-cycle the router.
Troubleshoot RIP V2 Tips
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When you are working a lab exercise or adding a new network to an existing system, you might need to do some troubleshooting!
Here are some things to check:
- Is the clock rate set correctly on the DCE?
- Is the routing protocol set correctly? RIP? Version 2? no auto-summary? networks?
- Are IPs and subnet masks set correctly?
- Are interfaces up? (no shut)
Try setting up an ip host address with the addresses of the router interfaces for easy pinging and telneting.
Debug ip rip/no debug ip rip might help as well as show int.
Don’t forget..when you get the Translating… message, your router escape sequence is CTRL-SHIFT-6 X! How could you forget that!
Subnetting a Class B License Borrowing 3 Bits
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This example using Lori’s Circle Shortcut is very similar to the Class C example of borrowing 3 bits. The difference being that the increment value is added to the third octet.
Subnetting a Class B License Borrowing 2 Bits
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Similar to the Class C License with 2 bits borrowed except the increment is applied to the third octet instead of the fourth octet. Lori’s Circle Shortcut explains this example.
Borrowing 7 Bits in a Class C License
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You can’t do that! Can you figure out why not?
Coming Soon — a podcast to explain this concept.
keep looking »