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Networking Labs

Walkthroughs on configuring advanced service provider networking simulations in Cisco Modeling Labs. All configuration files and lab.yaml files are free.

QoS Classification and Marking in a Layer 3 MPLS VPN

August 22, 2026 by Nick

QoS is an essential concept for network engineers to understand. In this lab we will configure QoS Classification and Marking.

Categories Fundamentals, Networking Labs Tags Cisco Modeling Labs, IOS XE, L3VPN, QoS Leave a comment

Configuring Multicast with PIM Sparse Mode in Cisco Modeling Labs

August 8, 2026August 8, 2026 by Nick
Multicast lab topology showing R1, R2, R3, a server, and two client sites

Learn how to configure IPv4 multicast in Cisco Modeling Labs using PIM Sparse Mode, IGMP, BSR, an RP, and iPerf, then verify multicast forwarding.

Categories Fundamentals, Networking Labs Tags BSR, Cisco Modeling Labs, IGMP, Multicast, PIM Leave a comment

How to Build a Layer 2 MPLS VPN (EVPN) in Cisco Modeling Labs

August 2, 2026 by Nick

In this lab we will configure a multipoint Layer 2 VPN using EVPN over MPLS. EVPN is one protocol which can be used to implement the MEF E-LAN standard.

Categories MPLS VPNs, Networking Labs Tags Cisco Modeling Labs, EVPN, IOS XE, L2VPN, MP-BGP Leave a comment

MPLS Traffic Engineering with RSVP-TE on IOS XRd

July 25, 2026 by Nick

Configure MPLS Traffic Engineering with RSVP-TE on Cisco IOS XRd, including explicit paths, bandwidth reservations, L3VPN steering, and verification.

Categories MPLS Core, Networking Labs Tags BGP, Cisco Modeling Labs, L3VPN, MPLS, MPLS Traffic Engineering Leave a comment

How to Build a Layer 3 MPLS VPN in Cisco Modeling Labs (IOS XE)

August 10, 2026July 18, 2026 by Nick

In this lab, we will build a Layer 3 MPLS VPN that allows customer edge (CE) routers to send private traffic across our MPLS Core (CSR1000v).

Categories MPLS VPNs, Networking Labs Tags Cisco Modeling Labs, iBGP, IOS XE, L3VPN, MP-BGP, MPLS Leave a comment

Building an MPLS Core with IOS XE in Cisco Modeling Labs

July 19, 2026July 18, 2026 by Nick

In this lab we’ll build a service provider-style MPLS Core with IOS XE. This lab covers the configuration of IS-IS, MPLS, and LDP.

Categories MPLS Core, Networking Labs Tags Cisco Modeling Labs, MPLS Leave a comment

MPLS Traffic Engineering with Segment Routing on IOS XRd

July 12, 2026July 12, 2026 by Nick

Segment routing is a modern MPLS Traffic Engineering tool. In this lab we’ll implement segment routing on IOS XRd in Cisco Modeling Labs.

Categories MPLS Core, Networking Labs Tags Cisco Modeling Labs, L3VPN, MPLS Traffic Engineering, Segment Routing, SR-TE Leave a comment

BGP Policy – Configuring Route Filtering on IOS XRd

July 4, 2026July 3, 2026 by Nick
ISP BGP Peering Lab Topology

By default, BGP advertises all BGP routes to neighbors. In this lab we will use Route Filtering to better control route advertisement.

Categories BGP Policy, Networking Labs Tags BGP Policy, Cisco Modeling Labs, eBGP, IOS XR Leave a comment

BGP Policy – Configuring AS_PATH Prepending on IOS XRd

July 4, 2026July 2, 2026 by Nick
ISP BGP Peering Lab Topology

AS_PATH Prepending allows us to influence the path of traffic into our network. In this lab we will configure AS_PATH prepending on IOS XRd.

Categories BGP Policy, Networking Labs Tags AS_PATH Prepending, BGP, BGP Policy, Cisco Modeling Labs, eBGP, iBGP Leave a comment

BGP Policy – Configuring BGP Local Preference on IOS XRd

July 19, 2026July 1, 2026 by Nick
ISP BGP Peering Lab Topology

In this lab we will configure BGP local preference on our IOS-XRd Internet Edge routers in Cisco Modeling Labs.

Categories BGP Policy, Networking Labs Tags BGP Policy, Cisco Modeling Labs, eBGP, iBGP Leave a comment
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Categories

  • Networking Concepts
  • Networking Labs
    • BGP Policy
    • Fundamentals
    • MPLS Core
    • MPLS VPNs

Recent Posts

  • QoS Classification and Marking in a Layer 3 MPLS VPN
  • Configuring Multicast with PIM Sparse Mode in Cisco Modeling Labs
  • How to Build a Layer 2 MPLS VPN (EVPN) in Cisco Modeling Labs
  • MPLS Traffic Engineering with RSVP-TE on IOS XRd
  • How to Build a Layer 3 MPLS VPN in Cisco Modeling Labs (IOS XE)
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