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Hotel Lost Liberty


IEEE 802 Standards

IEEE = Institute for Electrical and Electronics Engineers, Inc.

The IEEE 802 Standards Subcommittee Subject Description 802.1 LANs Defines the general architecture of a LAN. 802.2 Logical Link Control (LLC) Allows Network layer protocols to link to Physical layer and MAC sublayer protocols. 802.3 Ethernet The Ethernet standard; defines CSMA/CD. 802.3u Fast Ethernet Defines 100Mbps […]

Network Media Characteristics

Network Media Characteristics Type Media Maximum Speed Segment Length 10base2 coaxial – 50 ohm thin 10 Mbps 185 meters (200 meters) 10Base5 coaxial – 50 ohm thick 10Mbps 500 meters 10BaseT UTP 10 to 1,000Mbps 100 meters Fiber multi-mode 10 to 1,000Mbps 2,000 meters Fiber single-mode 10 to 1,000Mbps 100,000 meters

Taken from page […]

PDU = Protocol Data Unit

Protocol Data Unit Names in Each Layer of OSI Model OSI Layer Number OSI Layer Name PDU Name 7 Application Data 6 Presentation Data 5 Session Data 4 Transport Segment 3 Network Packet 2 Data Link Frame 1 Physical Bits

Taken from page 41 of CCNA for Dummies, 2nd Ed. By Ron Gilster


The OSI Model

The OSI Model consists of 7 layers.

The Seven Layers of the OSI Reference Model Layer Description Device Protocol Application Provides network access for applications, flow control and error recovery. Provides communications services to applications by identifying and establishing the availability of other computers as well as to determine if sufficient resources exist for communication […]

Congratulations Mr. & Mrs. Ford!

Congratulations Jon and TJ Ford! May God Bless you with a lifetime of happiness.

I took some pictures of the wedding. They can be found at

Update: The pictures are now located here.

Ordered CCNA books

I ordered some books to aid me in my study for my CCNA. They should be here on Thursday or Friday. Hopefully I will be able to start using them this weekend. I was looking at the book I had borrowed to study with and found that it was published in 1995. Not sure exactly […]

Printing to a PSUS4 from MacOS x.*

I recently purchased a Linksys PSUS4 print server for my Brother HL-5040 printer. The print server was an excellent price just $10. I set it up using Linksys’ provided tools and it worked great on my Windows XP machine. However when I tried to set it up on my Powerbook running MacOS 10.3 and later […]

Refreshing Machine Info in WINS

To refresh a machines information in WINS you need to run the following command from the commandline: nbtstat -RR

There are lots of little things that nbtstat can do for you on a windows machine. Check it out sometime.

Adding IP Aliases to a RedHat Server

To add a IP Alias to a RedHat server you need to create a new interface file in /etc/sysconfig/network-scripts/. The scripts will be named ifcfg-ethX:X. Where The first X is the interface number 0 being the first and the second X being the IP Alias number 0 being the first, etc.

The format of the […]