Cisco Certification Stuff (CCENT/CCNA):
BGP Stuff:
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):
Data-Link Layer:
IP Network Layer Protocols:
IP Transport Layer Protocols:
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 ...