Implementation of Backbone MPLS with IS-IS and OSPF

In this article, we will explore the implementation of a backbone MPLS network using IS-IS and OSPF routing protocols. We will also cover redistribution between IS-IS and OSPF, high availability at the backbone level, QoS at the CE level, MP-BGP with route-reflector, and interconnection of FlexVPN, E-LINE, and VPLS.

Key Concepts and Commands

1. MPLS Configuration:

interface GigabitEthernet0/1
mpls ip

2. IS-IS Configuration:

router isis
net 49.0001.0000.0000.0001.00
is-type level-2-only

3. OSPF Configuration:

router ospf 1
network 10.0.0.0 0.255.255.255 area 0

4. Redistribution between IS-IS and OSPF:

router ospf 1
redistribute isis level-2 metric 10 subnets

5. High Availability with HSRP:

interface GigabitEthernet0/1
standby 1 ip 10.0.0.1
standby 1 priority 110

6. QoS Configuration:

class-map match-any VOICE
match ip dscp ef
policy-map QOS-POLICY
class VOICE
priority percent 20

7. MP-BGP with Route-Reflector:

router bgp 65001
neighbor 10.0.0.2 remote-as 65001
neighbor 10.0.0.2 route-reflector-client

8. FlexVPN Configuration:

crypto ikev2 proposal IKEV2-PROPOSAL
encryption aes-cbc-256
integrity sha256
group 19

What Undercode Say

In the realm of network engineering, the implementation of MPLS with IS-IS and OSPF is a critical skill for ensuring robust and scalable network infrastructures. The integration of these protocols allows for efficient routing and high availability, which are essential for modern networks. The use of MP-BGP with route-reflectors further enhances the scalability of the network, making it suitable for large enterprises and service providers.

Quality of Service (QoS) at the CE level ensures that critical applications receive the necessary bandwidth and low latency, which is crucial for voice and video traffic. The interconnection of FlexVPN, E-LINE, and VPLS provides a versatile and secure way to connect different parts of the network, ensuring seamless communication across various locations.

To further enhance your skills, consider exploring advanced topics such as segment routing, network automation with Python, and the use of Ansible for network configuration management. These skills will not only make you a more competent network engineer but also prepare you for the challenges of next-generation networks.

For more detailed guides and tutorials, you can visit the following resources:
– Cisco MPLS Configuration Guide
– IS-IS and OSPF Redistribution
– MP-BGP Configuration

By mastering these concepts and commands, you will be well-equipped to design, implement, and manage complex network infrastructures that meet the demands of today’s digital world.

References:

initially reported by: https://www.linkedin.com/posts/pahlabi_implementation-backbone-mpls-with-is-is-and-activity-7300367280431927297-RNUd – Hackers Feeds
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