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Supported Platforms

Junos OS substantially supports the following RFCs, which define standards for Point-to-Point Protocol (PPP) interfaces.

RFC 1332, The PPP Internet Protocol Control Protocol (IPCP)
RFC 1334, PPP Authentication Protocols
RFC 1661, The Point-to-Point Protocol (PPP)
RFC 1662, PPP in HDLC-like Framing
RFC 1989, PPP Link Quality Monitoring
RFC 1990, The PPP Multilink Protocol (MP)
RFC 2364, PPP Over AAL5
RFC 2615, PPP over SONET/SDH
RFC 2686, The Multi-Class Extension to Multi-Link PPP
The following features are not supported:
- Negotiation of address field compression and protocol field compression PPP NCP options; instead, a full 4-byte PPP header is always sent
- Prefix elision
RFC 3021, Using 31-Bit Prefixes on IPv4 Point-to-Point Links

The following RFCs do not define standards, but provide information about PPP. The IETF classifies them as “Informational.”

RFC 1877, PPP Internet Protocol Control Protocol Extensions for Name Server Addresses
RFC 2153, PPP Vendor Extensions