Talk:HDLC - Factbites

Talk:HDLC - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Talk:HDLC

Note: these results are not from the primary (high quality) database.

	Announcing UPW - Uplink to Pacsats for Windows
		UPW performs all of the work that would normally be done by a Manchester modem and a TNC: the generation of HDLC flags, zero bit stuffing, NRZI encoding, CRC calculations, Manchester modulation, and sending the push-to-talk ("PTT") signal to the radio.
		UPW raises the DTR pin on COM1 as the signal to turn on the transmitter, plays HDLC flags for a short period of time for the transmitter to stabilize (TXDelay) and then plays the Manchester signal out of the sound card.
		This allows UPW to use only one serial port on the computer while still receiving GPS signals and sending a signal to the two meter transmitter to "key up." This also means that there are two connections to the radio: the first connection from the soundcard and the second connection from COM1 to PTT.
	members.aol.com /dquagliana/upw

	62. X.25 (cont'd)
		In actual fact, pure X.25 only defines the DTE to DCE connection but when we talk about the X.25 Packet Switching Network we talk about the above 3 layers.
		X.25.2 uses HDLC & LAPB for the Data Link layer.
		X.25.1 is the Physical layer and is uses 4 flavours of medium (similar to the multiple Ethernet flavours: 10BaseT, Thinnet and Thicknet).
	www.techbooksforfree.com /intro_to_data_com/page259.html

	Stuart Cheshire
		This is an improved version of the SIGCOMM paper; it is a little longer, but the descriptions are a little easier to understand, and it also includes HDLC in the experiments comparing COBS to other stuffing methods.
		Also available are the slides from the SIGCOMM talk (Postscript).
		See also It's the Latency, Stupid, the rant that was the precursor to this paper.
	www.stuartcheshire.org (2066 words)

	ppp-numbers
		PPP ATCP CONFIGURATION OPTION TYPES The Point-to-Point Protocol (PPP) Apple Talk Control Protocol (ATCP) specifies a number of Configuration Options [RFC-1378] which are distinguished by an 8 bit Type field.
		[RFC1662] Simpson, W., Editor, "PPP in HDLC-like Framing", STD 51, RFC 1662, Daydreamer, July 1994.
		PPP AUTHENTICATION ALGORITHMS A one octet field is used in the Challenge-Handshake Authentication Protocol (CHAP) to indicate which algorithm is in use [RFC1994].
	www.iana.org /assignments/ppp-numbers (1347 words)

Try your search on: Qwika (all wikis)