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Conference noted::decnis

Title:	DEC Network Integration Server (DECNIS)
Notice:	Please read note 1 to use this conference effectively
Moderator:	MARVIN::WELCH

Created:	Wed Sep 18 1991
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	3660
Total number of notes:	15082

3570.0. "RFC for PP encapsulation" by SALEM::ELWARNER () Wed Mar 12 1997 18:01

    Can someone tell me waht RFC Digital used to encapsulate frame
    	relay in PPP. I am having trouble with a proble that is trying
    	to decode the packet.

T.R Title User Personal
Name Date Lines

3570.1 no RFC compliance MARVIN::RIGBY No such thing as an alpha beta Wed Mar 12 1997 20:44 14

T.R	Title	User	Personal Name	Date	Lines
3570.1	no RFC compliance	MARVIN::RIGBY	No such thing as an alpha beta	`Wed Mar 12 1997 20:44`	14
	As DIGITAL implemented Frame Relay with cisco, Stratcom and Northern Telecom (aka 'the gang of four' or the Joint Agreement) before the RFC standardization for it, we don't, currently, conform to RFC1294/RFC1490/RFC1973 For IP over FrameRelay the encapsulation is for PPP its DLCI0 DLCI1 0xFF 0x03 0x00 0x21 0x45...rest of IP packet for CHDLC DLCI0 DLCI1 0x08 0x00 0x45...rest of IP packet RFC compliant encapsulation would be RFC1490 DLCI0 DLCI1 0x03 0xCC 0x45...rest of IP packet RFC1973 DLCI0 DLCI1 0x03 0xCF 0xFF 0x03 0x00 0x21 0x45...rest of IP packet

As DIGITAL implemented Frame Relay with cisco, Stratcom and Northern Telecom
(aka 'the gang of four' or the Joint Agreement) before the RFC standardization
for it, we don't, currently, conform to RFC1294/RFC1490/RFC1973

For IP over FrameRelay the encapsulation is

for PPP its DLCI0 DLCI1 0xFF 0x03 0x00 0x21 0x45...rest of IP packet
for CHDLC   DLCI0 DLCI1 0x08 0x00 0x45...rest of IP packet


RFC compliant encapsulation would be

RFC1490     DLCI0 DLCI1 0x03 0xCC 0x45...rest of IP packet
RFC1973     DLCI0 DLCI1 0x03 0xCF 0xFF 0x03 0x00 0x21 0x45...rest of IP packet