MPLS ENT - Enterprise Networks over Service Provider MPLS On-Site Training
MPLS ENT - Enterprise Networks over Service Provider MPLS
As MPLS-based networks become more competitively priced, migrating from Frame Relay connections to MPLS backbones makes sense. However, to fully optimize and take advantage of the MPLS-based backbone, you must understand the full implications of the migration, including BGP requirements and Quality of Service (QoS) issues. In this course, we condensed the information from three separate courses into a single, focused week in which you'll cover the topics necessary to plan, design, configure, and manage this new topology.
You will discover and explore the concepts and requirements of an enterprise network that is migrating from Frame Relay connections to an MPLS-based service provider. You'll get an overview of BGP, focusing on enterprise network requirements. Then, you'll cover MPLS/VPN and QoS and examine how the MPLS network topology impacts the Enterprise QoS SLAs.
What You'll Learn
Who Should Attend
Individuals interested in replacing legacy enterprise WAN networks with BGP over MPLS.
Lab 1: Network Setup
Establish physical connectivity between the student routers, configure IP addressing, enable an Interior Routing Protocol, and verify routing among the student routers.
Lab 2: Configuring EBGP Peerings
Create two EBGP peerings, advertise networks into BGP, and redistribute your IGP into BGP. Observe the effects of BGP auto-summarization and summarize your pod's routes to your external neighbor.
Lab 3: Configuring IBGP Peerings
Configure an IBGP peering with the other edge router in your pod, simulating a network with redundancy and giving a backup path in case there are problems with your other external path. Learn peering with loopback interfaces, the effect of BGP synchronization, and BGP next-hop behavior. Examine the effects of multihoming on path selection, both internally and on the external neighbors.
Lab 4: Using AS-Path Filters and Regular Expressions
Filter updates to the external routers and manipulate path selection between the external peers using a combination of AS-path filters and regular expressions.
Lab 5: Using Prefix Lists
Implement a policy on routes that your AS accepts and advertises. Filter the routes advertised to your autonomous system by using prefix lists applied to routing updates from your external neighbors.
Lab 6: Soft Reconfiguration and Route Refresh
Explore less disruptive ways to make your BGP policy take effect other than clearing your peer relationships. Monitor and verify the actions of BGP Route Refresh and configure BGP soft inbound reconfiguration.
Lab 7: Configuring the Weight Attribute
Set a policy on individual routers using the Weight attribute in order to control BGP path selection on those routers. Configure a second BGP peering for each of your BGP routers, then set a weight value for routes received from each EBGP neighbor, and monitor the resulting path choice.
Lab 8: Configuring the Local Preference Attribute
Set a policy that affects your entire autonomous system using the Local Preference attribute to control BGP path selection by all routers with your autonomous system.
Lab 9: AS-Path Prepending
Use AS-Path Prepending to influence the BGP path chosen by other routers in the Internet for traffic bound for your AS. Configure AS-Path Prepending in order to make one path into your AS look more attractive than the other.
Lab 10: Configuring the MED
Use the MED attribute to influence the BGP path selection by routers in neighboring autonomous systems for traffic bound to your autonomous system.
Lab 11: Using the Community Attribute
Explore ways of using the Community attribute to tag routes. Configure the use of that attribute in setting local preference BGP policies within your autonomous system.
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