Update

Posted by aun on May 28, 2008

Things are moving along slowly. I feel that writing a blog post with notes slows me down, so I’ll probably just post updates, on how things are going. Currently, I’m working on finishing up VPN, as that really is my strength, and then work on other things. It seems that the passing score of the CCIE security has also been reduced. Good for me! Less time spent on the written, gives me more time for the lab.

802.x protocols 1

Posted by aun on May 18, 2008

802.1 - algorithm that prevents bridging loops

802.2 - implementation of the LLC sublayer of the data-link layer; handles errors, framing, flow control, and network layer service interface

802.3 - spec that describes Ethernet. uses csma/cd access at different speeds. extensions of standard include FastE

802.4 - uses token-passing over bus topology. describes the token ring bus

802.5 - uses token-passing access over 4 or 16 Mbps over stp cabling. similar to IBM token ring

802.6 - builds on DQDB technology. supports data rates of 1.5 - 155 Mbps. describes Municipal Area Networks (MAN)

802.7 - broadband

802.8 - fiber-optics LAN

802.9 - integrated voice / data

802.10 - LAN/MAN security

802.11 - wireless

802.12 - demand priority access LAN, 100 Base VGAnyLAN