Review Exercises and Technical Goodies
Revised June 27, 2018
Practice makes perfect!
Cisco Certification Stuff (CCENT/CCNA):
Hot Keys and More!
Interesting Facts About The Internet:
Telnet to a live Internet core router!
Note: These are not web sites, you are accessing the router via Telnet. The BGP database contains several hundred thousand prefixes, so commands that require sorting may require a little time to process (and you're probably not the only person logged in).
When you get in, try some "show" commands, like the following (remember that when at the "--More--" prompt, hit the "Enter" key to see the next line, the spacebar to see the next screen, and any other key to get back to the command prompt):
- show ip route (the full output of this is over 400,000 lines)
- show ip route address mask
- show ip route summary
- show ip bgp summary
- show ip bgp (the full output of this is over 7 *million* lines!)
- show ip bgp address mask
- show ip bgp regexp regexp
- Other Data-Link Layer info:
IP Network Layer Protocols:
- IPv4 (What we're currently running in most places):
- IPv6 (What the future holds ... and for some of us, the present!):
IP Transport Layer Protocols:
- General IPv4 Routing Info
- IPv6 Routing Protocols
MPLS (Multi-Protocol Label Switching):
Algorithms and Related Stuff:
Internet Administration (RFC's, Drafts, ASN's, etc) and Technical Standards:
Can't get enough of that Cisco stuff?
Humorous RFC's (Check These Out!) ...
Other Interesting Stuff ...
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