Cisco BGP & MPLS-VPN for Network Engineers

Course Overview and Objectives •
Importance of BGP and MPLS in Modern Networks •
Lab Setup Overview (PE/CE routers, Topology) •

 Autonomous System Number (ASN) •
BGP Neighbor Table & BGP Table •
IP Routing Table and Loop Prevention •
Address Families •
Basic BGP Configuration Lab •

• BGP Message Types: Open, Update, Notification, Keepalive
• BGP Neighbor States: Idle, Connect, Active, Open Sent, Open Confirm, Established
• Lab: Observing BGP Neighbor States

• Well-known Mandatory: ORIGIN, AS-PATH, NEXT-HOP
• Well-known Discretionary: LOCAL_PREF, ATOMIC_AGGREGATE
• Optional Transitive: AGGREGATOR, COMMUNITY
• Optional Non-Transitive: MULTI_EXIT_DISC (MED), ORIGINATOR_ID, CLUSTER_LIST
• Lab: Configuring and Verifying BGP Path Attributes

• Adj-RIB-In, Loc-RIB, Adj-RIB-Out
• Lab: Route Advertisement and Route Filtering

• Internal BGP (iBGP)
o Full Mesh Requirement
o Peering Using Loopback Addresses
o Route Reflector and Loop Prevention
o Confederation
• External BGP (eBGP)
o Next Hop Manipulation
• Lab: iBGP and eBGP Configuration

• Path Selection Process
• Influencing BGP Best Path
• Lab: BGP Path Selection Scenarios

• Understanding the Need for MPLS
• Need for MPLS and its Mechanics
• Lab / Knowledge Check: MPLS Concepts

• Deploying MPLS on Cisco Routers
• Using OSPF and IS-IS to Auto-Allocate MPLS Labels
• Lab: Configuring MPLS Backbone

• Verifying MPLS using Show Commands and Debugs
• Lab: MPLS Verification

• Troubleshooting MPLS LDP Neighborship Issues
• Lab: MPLS Troubleshooting

• MPLS LDP Authentication
• MPLS IGP Synchronization
• MPLS LDP Session Protection
• MPLS LDP TTL Propagation
• Lab: Optimizing MPLS

• BGP in MPLS VPN Environments
• How MPLS fits into MPLS VPNs
• Lab: BGP over MPLS VPN

• Static Routing between PE and CE
• EIGRP between PE and CE
• OSPF between PE and CE
• BGP between PE and CE
• Lab: Configuring CE-PE Connectivity

• BGP Cost Manipulation
• Site of Origin (SoO)
• Lab: Configuring Advanced MPLS VPN Features