Cisco Segment Routing BGP Prefix-SID in Inter-AS Network Lab v1 now available on Cisco dCloud!

[lamarsh]

Overview

This lab explores the use of BGP prefix-SIDs in an inter-AS setup. L3VPN inter-AS option C is used in the setup. BGP prefix-SIDs provide inter-AS connectivity between the Provider Edges (PEs) as well as between the route reflectors (RR s) in the different autonomous systems (AS). The classical L3VPN inter-AS option C functionality is then applied to the network. BGP prefix-SID functionality automatically interworks between a Segment Routing (SR) enabled and a non-SR enabled AS.

For more information about SR, refer to www.segment-routing.net.

Check it out here: https://dcloud-cms.cisco.com/demo/segment-routing-bgp-prefix-sid-lab-v1

Scenarios

• Scenario 1: Explore Network Topology
• Scenario 2: Explore SR BGP Connectivity Between PEs
• Scenario 3: Explore L3VPN Connectivity Between CEs
• Scenario 4: Explore Interworking Between SR AS and Non-SR AS

Requirements

Required	Optional
Laptop	Cisco AnyConnect®

Components

• Cisco IOS XRv 6.2.1
• Cisco VIRL

Features

VIRL

Virtual environment for building network topologies Simulation of networking components Capable of running a range of virtual machines (VMs) running Cisco operating systems (IOS-XE, IOS Classic, IOS-XR, and NX-OS) Support for third-party VMs Capture and analyze network traffic at any node Validate configurations prior to physical deployment

Segment Routing

Segment Routing (SR) enables a unified, end-to-end, policy-aware network architecture from servers in the data center, through the WAN, and up to the aggregation. SR is designed for SDN because it seeks the proper balance between distributed intelligence, centralized optimization, and application-based policy creation. Other benefits of SR are related to operational simplicity, better scale (the SR policy is in the packet), and better utilization of the installed infrastructure (lower capex).

Topology