Module vpn 

VPNv4/VPNv6 labeled NLRI codec substrate (RFC 4364 / RFC 4659 / RFC 8277). VPNv4/VPNv6 labeled NLRI codec substrate.

This module is deliberately pure and unreachable from MP_REACH/MP_UNREACH dispatch today. It provides the RFC 8277 label-stack and RFC 4364 / RFC 4659 RD-prefixed VPN prefix codec pieces needed for a future typed VPNv4/VPNv6 route-reflector slice without treating VPN routes as unicast crate::nlri::Prefix values.

Structs

MplsLabelEntry

One RFC 8277 MPLS label-stack entry.

VpnNlri

One VPNv4/VPNv6 labeled NLRI.

VpnRouteKey

Route-key identity for one VPNv4/VPNv6 NLRI.

Enums

VpnAddressFamily

VPN address family carried by a VPNv4/VPNv6 NLRI.

VpnPrefix

A VPNv4 or VPNv6 route prefix keyed by RD plus address prefix.

Constants

LABELED_UNICAST_SAFI

SAFI for labeled-unicast NLRI (RFC 8277 §2).

MAX_MPLS_LABEL

Maximum 20-bit MPLS label value.

MAX_MPLS_TRAFFIC_CLASS

Maximum 3-bit MPLS traffic-class value.

MPLS_LABEL_ENTRY_BITS

One MPLS label-stack entry is a 20-bit label, 3-bit TC, and S bit.

MPLS_LABEL_ENTRY_LEN

One MPLS label-stack entry length in octets.

MPLS_VPN_SAFI

SAFI for labeled VPN NLRI (RFC 8277 §2, RFC 4364, RFC 4659).

ROUTE_DISTINGUISHER_BITS

Route Distinguisher length in bits.

ROUTE_DISTINGUISHER_LEN

Route Distinguisher length in octets.

VPNV4_AFI

AFI for VPNv4 labeled NLRI (RFC 4364 §4.3.1).

VPNV6_AFI

AFI for VPNv6 labeled NLRI (RFC 4659 §3.2).

Functions

decode_vpn_nlri

Decode VPNv4 or VPNv6 NLRI bytes for the selected family.

decode_vpnv4_nlri

Decode VPNv4 NLRI bytes.

decode_vpnv6_nlri

Decode VPNv6 NLRI bytes.

encode_vpn_nlri

Encode VPNv4 or VPNv6 NLRI bytes for the selected family.

encode_vpnv4_nlri

Encode VPNv4 NLRI bytes.

encode_vpnv6_nlri

Encode VPNv6 NLRI bytes.