Technology aggregate

PPP access

PPP, PPPoE, and L2TP subscriber access. The RFCs whose summary names the ppp-access aggregate, with their mandatory and optional coverage.

All profiles · All RFCs

Mandatory60.5%179 of 296 (60.5%)

MUST, MUST NOT, REQUIRED, SHALL and SHALL NOT rows of the walked RFCs that a recorded test break proves.

Optional4.1%4 of 97 (4.1%)

MAY, NOT RECOMMENDED, OPTIONAL, RECOMMENDED, SHOULD and SHOULD NOT rows, counted the same way.

Mandatory ceiling96.6%286 of 296 (96.6%); excluded: Met by a lower layer: 2 of 296 (0.7%); Not applicable (classification can be revisited): 8 of 296 (2.7%)

Attainable mandatory rows under current classifications, over the unchanged total.

Optional ceiling100.0%97 of 97 (100.0%)

Attainable optional rows under current classifications, over the unchanged total.

Not walked0of 11 RFCs

RFCs with no valid extraction sign-off: their rows count in neither figure.

Mandatory registernot completeevery row proven, none unwalked

A profile is complete only when it requires at least one RFC and none of them is unwalked.

Mandatory ceiling: 286 of 296 (96.6%); excluded: Met by a lower layer: 2 of 296 (0.7%); Not applicable (classification can be revisited): 8 of 296 (2.7%). Optional ceiling: 97 of 97 (100.0%). Lowest mandatory ceiling: rfc1332 7 of 8 (87.5%). Lowest optional ceiling: rfc1332 6 of 6 (100.0%). Ceilings describe current classifications, not an immutable Linux maximum. Not-applicable and feature-declined classifications can be revisited. Every gap remains work Ze owes.

Tree

Roots first: an RFC sits one level above the highest level of the RFCs it builds on, and the RFCs of one citation cycle share a level. Each bar is the share of that figure's rows a recorded break proves; the ceiling below it shows attainable rows under current classifications. An RFC that is not walked shows an empty bar and no figure or ceiling.

Level 0

RFC	Title	Mandatory	Optional
RFC 1661	The Point-to-Point Protocol (PPP)	39 of 76 (51.3%)Ceiling: 70 of 76 (92.1%); excluded: Not applicable (classification can be revisited): 6 of 76 (7.9%)	0 of 25 (0.0%)Ceiling: 25 of 25 (100.0%)

Level 1

RFC	Title	Mandatory	Optional
RFC 1570	PPP LCP Extensions	0 of 22 (0.0%)Ceiling: 22 of 22 (100.0%)	0 of 16 (0.0%)Ceiling: 16 of 16 (100.0%)
RFC 1994	PPP Challenge Handshake Authentication Protocol (CHAP)	8 of 16 (50.0%)Ceiling: 16 of 16 (100.0%)	2 of 11 (18.2%)Ceiling: 11 of 11 (100.0%)
RFC 2516	A Method for Transmitting PPP Over Ethernet (PPPoE)	25 of 37 (67.6%)Ceiling: 36 of 37 (97.3%); excluded: Met by a lower layer: 1 of 37 (2.7%)	0 of 3 (0.0%)Ceiling: 3 of 3 (100.0%)

Level 2

RFC	Title	Mandatory	Optional
RFC 1332 (cycle with rfc1034, rfc1035, rfc1122, rfc1191, rfc1195, rfc1812, rfc2131, rfc2132, rfc4291, rfc4443, rfc4861, rfc5905, rfc8200, rfc8201, rfc9293)	The PPP Internet Protocol Control Protocol (IPCP)	6 of 8 (75.0%)Ceiling: 7 of 8 (87.5%); excluded: Not applicable (classification can be revisited): 1 of 8 (12.5%)	0 of 6 (0.0%)Ceiling: 6 of 6 (100.0%)
RFC 1334	PPP Authentication Protocols	11 of 13 (84.6%)Ceiling: 13 of 13 (100.0%)	0 of 3 (0.0%)Ceiling: 3 of 3 (100.0%)
RFC 4638	Accommodating a Maximum Transit Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in the Point-to-Point Protocol over Ethernet (PPPoE)	0 of 6 (0.0%)Ceiling: 6 of 6 (100.0%)	0 of 3 (0.0%)Ceiling: 3 of 3 (100.0%)

Level 3

RFC	Title	Mandatory	Optional
RFC 1877	PPP Internet Protocol Control Protocol Extensions for Name Server Addresses	no rowsCeiling: no rows	no rowsCeiling: no rows

Level 4

RFC	Title	Mandatory	Optional
RFC 5072	IP Version 6 over PPP	9 of 16 (56.2%)Ceiling: 15 of 16 (93.8%); excluded: Not applicable (classification can be revisited): 1 of 16 (6.2%)	0 of 12 (0.0%)Ceiling: 12 of 12 (100.0%)

Level 5

RFC	Title	Mandatory	Optional
RFC 2661	Layer Two Tunneling Protocol "L2TP"	81 of 94 (86.2%)Ceiling: 93 of 94 (98.9%); excluded: Met by a lower layer: 1 of 94 (1.1%)	2 of 8 (25.0%)Ceiling: 8 of 8 (100.0%)

Level 6

RFC	Title	Mandatory	Optional
RFC 3145	L2TP Disconnect Cause Information	0 of 8 (0.0%)Ceiling: 8 of 8 (100.0%)	0 of 10 (0.0%)Ceiling: 10 of 10 (100.0%)