Junos MPLS and VPNS (JMV)

This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.

• Students should have intermediate-level networking knowledge and an understanding of the OSI model and the TCP/IP protocol suite.
• Students should also have familiarity with the Protocol Independent Multicast-Sparse Mode (PIM-SM) protocol.
• Students should also have attended the Introduction to the Junos Operating System (IJOS) course, the Junos Routing Essentials (JRE) course, and the JunOS Service Provider Switching (JSPX) courses prior to attending this class. [/list}

After successfully completing this course, you should be able to:

• Explain common terms relating to MPLS.
• Explain routers and the way they forward MPLS packets.
• Explain packet flow and handling through a label-switched path (LSP).
• Describe the configuration and verification of MPLS forwarding.
• Understand the information in the Label Information Base.
• Explain the two label distribution protocols used by the Junos OS.
• Configure and troubleshoot RSVP-signaled and LDP-signaled LSPs.
• Explain the constraints of both RSVP and LDP.
• Explain the path selection process of RSVP without the use of the Constrained Shortest Path First (CSPF) algorithm.
• Explain the Interior Gateway Protocol (IGP) extensions used to build the Traffic Engineering Database (TED).
• Describe the CSPF algorithm and its path selection process.
• Describe administrative groups and how they can be used to influence path selection.
• Describe the default traffic protection behavior of RSVP-Signaled LSPs.
• Explain the use of primary and secondary LSPs.
• Explain LSP priority and preemption.
• Describe the operation and configuration of fast reroute.
• Describe the operation and configuration of link and node protection.
• Describe the LSP optimization options.
• Explain the purpose of several miscellaneous MPLS features.
• Explain the definition of the term "Virtual Private Network".
• Describe the differences between provider-provisioned and customer-provisioned VPNs.
• Describe the differences between Layer 2 VPNs and Layer 3 VPNs.
• Explain the features of provider-provisioned VPNs supported by the Junos OS.
• Explain the roles of Provider (P) routers, Provider Edge (PE) routers, and Customer Edge (CE) routers.
• Describe the VPN-IPv4 address formats.
• Describe the route distinguisher use and formats.
• Explain the RFC 4364 control flow.
• Create a routing instance, assign interfaces, create routes, and import and export routes within the routing instance using route distinguishers and route targets.
• Explain the purpose of BGP extended communities and how to configure and use these communities.
• Describe the steps necessary for proper operation of a PE to CE dynamic routing protocol.
• Configure a simple Layer 3 VPN using a dynamic CE-PE routing protocol.
• Describe the routing-instance switch.
• Explain the issues with the support of traffic originating on multiaccess VPN routing and forwarding table (VRF table) interfaces.
• Use operational commands to view Layer 3 VPN control exchanges.
• Use operational commands to display Layer 3 VPN VRF tables.
• Monitor and troubleshoot PE-CE routing protocols.
• Describe the four ways to improve Layer 3 VPN scaling.
• Describe the three methods for providing Layer 3 VPN customers with Internet access.
• Describe how the auto-export command and routing table groups can be used to support communications between sites attached to a common PE router.
• Describe the flow of control and data traffic in a hub-and-spoke topology.
• Describe the various Layer 3 VPN class-of-service (CoS) mechanisms supported by the Junos OS.
• Explain the Junos OS support for generic routing encapsulation (GRE) and IP Security (IPsec) tunnels in Layer 3 VPNs.
• Describe the flow of control traffic and data traffic in a next-generation MVPN.
• Describe the configuration steps for establishing a next-generation MVPN.
• Monitor and verify the operation of next-generation MVPNs.
• Describe the purpose and features of a BGP Layer 2 VPN.
• Describe the roles of a CE device, PE router, and P router in a BGP Layer 2 VPN.
• Explain the flow of control traffic and data traffic for a BGP Layer 2 VPN.
• Configure a BGP Layer 2 VPN and describe the benefits and requirements of over-provisioning.
• Monitor and troubleshoot a BGP Layer 2 VPN.
• Explain the BGP Layer 2 VPN scaling mechanisms and route reflection.
• Describe the Junos OS BGP Layer 2 VPN CoS support.
• Describe the flow of control and data traffic for an LDP Layer 2 circuit.
• Configure an LDP Layer 2 circuit.
• Monitor and troubleshoot an LDP Layer 2 circuit.
• Describe and configure circuit cross-connect (CCC) MPLS interface tunneling.
• Describe the difference between Layer 2 MPLS VPNs and VPLS.
• Explain the purpose of the PE device, the CE device, and the P device.
• Explain the provisioning of CE and PE routers.
• Describe the signaling process of VPLS.
• Describe the learning and forwarding process of VPLS.
• Describe the potential loops in a VPLS environment.
• Configure BGP and LDP VPLS.
• Troubleshoot VPLS.
• Describe the Junos OS support for carrier of carriers.
• Describe the Junos OS support for interprovider VPNs.

This five-day course is designed to provide students with MPLS-based virtual private network (VPN) knowledge and configuration examples. The course includes an overview of MPLS concepts such as control and forwarding plane, RSVP Traffic Engineering, LDP, Layer 3 VPNs, next-generation multicast virtual private networks (MVPNs), BGP Layer 2 VPNs, LDP Layer 2 Circuits, and virtual private LAN service (VPLS). This course also covers Junos operating system-specific implementations of Layer 2 control instances and active interface for VPLS. This course is based on the Junos OS Release 10.3R1.9.

Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos OS and in device operations.