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Interesting Network Trivia and
Other Things You Might Not Know

 

New Advances in Wi-Fi Radio Technology...

Some people believe that a Wi-Fi radio, mounted on a pole outdoors, can easily provide complete indoor coverage for buildings thousands of feet away. We wondered where this common misconception originated. Perhaps this is the source...

Making The Connection
A poem by Joseph Bardwell (1999)

Sometimes it amazes me
that routers work at Layer 3
when switches very will could do
the job at simply Layer 2
But switches work at Layer 3
Oh, how confusing this can be
When bridges work at Layer 2
and routers can be bridges too!
And when you hope there'd be no more
you find a switch at Layer 4
So Layer 4, and 2, and 3
imply OSI conformity
But these are simply building blocks
in what we'll call an "Interconnect Box"

Humorous Request For Comment (RFC) Documents
These are official RFC documents maintained by the Internet Engineering Task Force (IETF)
When you're done reading one of these documents, use the BACK button in your browser to return to this page.

RFC 527 ARPAWOCKY
RFC 748 Telnet Randomly-lose option
RFC 968 'Twas The Night Before Startup
RFC 1097 Telnet subliminal-message option
RFC 1121 Act one: the poems
RFC 1149 A standard for the Transmission of IP Datagrams on Avian Carriers
RFC 1216 Gigabit Network Economics and Paradigm Shifts
RFC 1217 Memo from the Consortium for Slow Commotion Research (CSCR)
RFC 1300 Remembrance of Things Past
RFC 1313 Today's Programming for KRFC AM 1313 Internet Talk Radio
RFC 1437 The Extension of MIME Content-Types to a New Medium
RFC 1438 IETF Statements of Boredom
RFC 1605 SONET to Sonnet translation
RFC 1606 A Historical Perspective On The Usage Of IP Version 9
RFC 1607 A View from the 21st Century
RFC 1776 The Address is the Message
RFC 1882 The 12 days of technology before Christmas
RFC 1924 A compact representation of IPv6 addresses
RFC 1925 The 12 networking truths
RFC 1926 An experimental encapsulation of IP Datagrams on top of ATM
RFC 1927 Suggested additional MIME types for associating documents

Service Access Point Identifiers
The SAP identifier is used in the header of both IEEE 802.3 Ethernet frames as well as 802.11 MAC frames. The most common use for SAP today is to simply provide a way to carry the original Version 2 Ethernet frame format inside a newer frame type. This makes use of SAP=0xAA (hex value "AA"). Occasionally other SAP values appear when an engineer is using a network protocol analyzer tool. This list is provided for their convenience, since a complete list of SAP values is often hard to obtain (because they've been in such disuse for so many years).

00 Null LSAP
02 Individual LLC Sublayer Management Function
03 Group LLC Sublayer Management Function
04 IBM SNA Path Control (individual)
05 IBM SNA Path Control (group)
06 ARPANET Internet Protocol (IP)
08 SNA
0C SNA
0E PROWAY (IEC955) Network Management & Initialization
18 Texas Instruments
42 IEEE 802.1 Bridge Spanning Tree Protocol
4E EIA RS-511 Manufacturing Message Service
7E ISO 8208 (X.25 over IEEE 802.2 Type 2 LLC)
80 Xerox Network Systems (XNS)
 		 86 Nestar
8E PROWAY (IEC 955) Active Station List Maintenance
98 ARPANET Address Resolution Protocol (ARP)
BC Banyan VINES
AA SubNetwork Access Protocol (SNAP)
E0 Novell NetWare
F0 IBM NetBIOS
F4 IBM LAN Management (individual)
F5 IBM LAN Management (group)
F8 IBM Remote Program Load (RPL)
FA Ungermann-Bass
FE ISO Network Layer Protocol
FF Global LSAP
 
   

..we though this was very funny...


 

 


 

 
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