Service Provider Technologies

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MPLS Unicast (IOS) L3 MPLS VPNs (IOS) MPLS VPN — Advanced Inter-AS (IOS) Carrier Supporting Carrier L3 MPLS VPNs (IOS-XR) Inter-AS — Option C Segment Routing MPLS VPNv6 Dual-Stack Options L2VPN / TE / QoS SR-based Inter-AS

Configuring L3 Intra-AS MPLS VPNs — IOS (Unicast Foundation)

Label switching fundamentals and core routing before VPN services.

MPLS Unicast Routing

Packet Switching — Concepts Label Forwarding — Overview Core Unicast Routing (P/PE) BGP-Free Core with MPLS

Intra-AS MPLS VPNs — IOS

VRFs, PE-CE options, MP-BGP and end-to-end verification.

Building the VPN

MPLS VPN — Big Picture PE VRF Setup (CUST-A) PE-CE with RIPv2 PE-CE with OSPF MP-BGP on PEs (VPNv4) Route Propagation & Checks PE-CE with EIGRP Static & Default to CE PE-CE with BGP BGP — AS-Override / Allowas-in Traffic Path Through VPN

MPLS VPN — Advanced Features

Extranets, OSPF special cases and VPNv4 route-reflectors.

Extranets & OSPF Enhancements

Extranet Design — Overview Extranets via Export-Maps OSPF Super-Backbone OSPF Domain-ID OSPF Sham-Link VPNv4 Route-Reflector

Configuring L3 Inter-AS MPLS VPNs — IOS

Two SP domains, RR designs and the classic A/B/C/D options.

Carrier Supporting Carrier (CSC)

Wholesale carrier models and hierarchical VPN designs.

CSC Variants

CSC — Overview IP-Based Carrier SP Carrier SP with MPLS Unicast Hierarchical MPLS VPN (H-MPLS)

Configuring L3 Intra-AS MPLS VPNs — IOS-XR

AS-100 / AS-200 builds with XR routing, LDP and MP-BGP.

AS-100 (XR)

Interfaces on XR OSPF on XR LDP on XR MP-BGP on XR PE VRF & PE-CE (BGP) CE (IOS) Setup eBGP Policy — Route-Policy

AS-200 (XR)

Interfaces on XR IS-IS on XR LDP on XR MP-BGP on XR PE VRF & PE-CE (BGP) CE (IOS) Setup

Inter-AS — Option C (Focus)

RR-based design, labeled IPv4 between ASBRs and route leaking.

Option C Workflow

Option C — Overview Route Leaking Design Labeled IPv4 — ASBR eBGP ASBR — BGP→IGP Redistribution RR-to-RR MP-eBGP PE Import of Remote RTs

Segment Routing — From Intro to Advanced

SR labels in place of LDP, OSPF/IS-IS enablement and ASBR signaling.

SR within the AS

Segment Routing — Overview SR Labels — AS-100 OSPF for SR — AS-100 SR Verification — AS-100 SR Labels — AS-200 IS-IS for SR — AS-200 ASBR BGP for SR — Route Leaking

Configuring Inter-AS MPLS VPNs — IPv6

VPNv6 end-to-end across two service provider domains.

AS #100 — VPNv6

VPNv6 — Overview Core IGP — OSPF (AS-100) MPLS Unicast — AS-100 MP-eBGP VPNv6 — AS-100 PE — VRF/Interfaces/BGP (AS-100) CE — Interfaces/BGP (AS-100)

AS #200 — VPNv6

Core IGP — IS-IS (AS-200) MPLS Unicast — AS-200 MP-eBGP VPNv6 — AS-200 PE — VRF/Interfaces/BGP (AS-200) CE — Interfaces/BGP (AS-200)

Inter-AS Options (IPv6)

IPv6 Inter-AS — Overview Option A (v6) Option B (v6) Option C (v6) Option D (v6)

Inter-AS MPLS VPN — Dual-Stack

Parallel VPNv4/VPNv6 constructions and inter-AS stitching.

Dual-Stack Builds

Intra-AS VPNv4 — AS-100 Intra-AS VPNv4 — AS-200 Inter-AS VPNv4 — Dual-Stack Path

L2 MPLS VPNs, Traffic Engineering & QoS

AToM, L2TPv3, VPLS and granular TE scenarios, then QoS mapping.

L2VPN — AToM

L2VPN — Concepts Core MPLS Unicast (L2) AToM — Ethernet Physical AToM — Serial HDLC AToM — Serial PPP AToM — Ethernet Sub-Interfaces Interworking: Ethernet↔PPP

L2VPN — L2TPv3 & VPLS

L2TPv3 — Overview & Base L2TPv3 — Service Build VPLS — Overview VPLS — Service Build

MPLS Traffic Engineering (TE)

TE Concepts & Baseline Enable TE on Routers RSVP Signaling Static Tunnels (R1-R4/R3/R2 etc.) Dynamic Tunnels (R1/R2/R3/R4) IS-IS for TE MPLS-TE with FRR — Overview FRR — Configuration

MPLS QoS

QoS over MPLS — Concepts

Inter-AS MPLS VPN Using Segment Routing

SR labels across domains and ASBR policy for VPN reachability.

AS-100 & AS-200

SR Tech — Quick Recap SR Labels — AS-100 OSPF for SR — AS-100 Verify SR — AS-100 SR Labels — AS-200 IS-IS for SR — AS-200

ASBR Signaling

BGP between ASBRs — SR Route Leaking Strategy