Chapter 1 Viewing MPLS VPNs

VPN Topology Connections

Layer 3 VPN Business Configuration

The following business elements represent a Layer 3 VPN configuration:

•Site (IP Interface)—Represents the VPN access point on the provider edge (PE) device.

•Virtual Router—Represents a PE VRF.

The Layer 3 VPN configuration hierarchy is composed of VPN business elements that in turn contain multiple virtual routers and sites. The relationship between the contents of VPNs and virtual routers can be changed, for example, by moving a virtual router between VPNs, which causes each site connected to the moved virtual router to move as well. The relationship between virtual routers and sites cannot be changed; sites are automatically attached to virtual routers (sites cannot be moved on their own).

In the Layer 3 VPN configuration, the VPNs are created and named automatically and new virtual routers are automatically detected. The virtual router is then automatically related or matched to the VPN based on the VRF name. If there is no related or matching VPN, then a new VPN is automatically created and a VRF is assigned to it. You can then add these VPNs to a map. You can manually change the autodiscovered service information, for example, by manually creating new VPNs, by deleting empty VPNs, by renaming VPNs, and so on.

Cisco ANA can use different criteria to determine the different Layer 3 VPNs in the network and their associated virtual routers. By default, Cisco ANA uses the VRF name to determine the network VPNs.

Layer 2 VPN Business Configuration and Tunnels

Layer 2 VPNs are not automatically created. You create the VPNs and then add the tunnels. The following business elements represent the Layer 2 VPN configuration:

•Logical Circuit Peer (LCP)—Represents a Layer 2 tunnel edge that resides on a single device. A pair of LCPs represents both sides of the tunnel edge.

Note A tunnel can be associated with only one VPN.

•Logical Circuit Aggregator (LCA)—Represents an aggregation of LCPs on the same device. LCAs can be manually or automatically created:

–Automatically—When an LCP is added to the VPN system, the system automatically creates the LCA by taking all the LCPs that belong to the same device and aggregating them into an LCA (the LCPs are automatically added under the LCA).

–Manually—An LCA that is manually created on a specific VPN has no rules. Manually creating an LCA is a preparatory step for adding tunnels or stranded peers.

VPN Topology Connections

Cisco ANA uses route targets (based on the router configuration) to determine the topology between VRFs. Layer 3 VPN topology information is continuously updated to reflect the actual state of the network connections. Cisco ANA uses the virtual circuit (VC) ID and the router IP address (based on the router configuration) to determine the connectivity between the Layer 2 tunnel edges forming the pseudowire tunnels.

Cisco Active Network Abstraction 3.6.6 MPLS User Guide

 

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Cisco Systems 3.6.6 manual VPN Topology Connections, Layer 3 VPN Business Configuration
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3.6.6 specifications

Cisco Systems has continually evolved its networking solutions to address the demands of modern enterprises, with the introduction of the Cisco Systems 3.6.6 version being no exception. This version integrates cutting-edge technologies designed to enhance network performance, security, and management efficiency, catering to the increasingly complex needs of businesses across various sectors.

One of the standout features of Cisco Systems 3.6.6 is its enhanced support for automation and orchestration. This version incorporates advanced automation tools, allowing IT teams to deploy and configure network resources more rapidly and efficiently. With features such as Cisco DNA Center’s intent-based networking, organizations can streamline operations and reduce manual intervention, leading to quicker service delivery and reduced operational costs.

Security remains a top priority, and Cisco Systems 3.6.6 includes improved security protocols that help protect sensitive data and critical infrastructure. The integration of Cisco SecureX provides a unified view of security across the network, enabling organizations to respond to threats in real-time, manage vulnerabilities proactively, and maintain compliance with regulatory standards. The incorporation of machine learning and AI-driven analytics ensures that potential threats are identified and mitigated before they can escalate.

Interoperability is another key characteristic of version 3.6.6, allowing existing Cisco hardware and software to work seamlessly together. This flexibility ensures that enterprises can leverage their current investments while adopting newer technologies without the need for a complete overhaul of their existing network architecture.

Additionally, Cisco Systems 3.6.6 has enhanced support for IoT devices, integrating robust frameworks that enable organizations to manage and secure an increasing number of connected devices. With the proliferation of IoT in various industries, this feature is vital for maintaining efficiency and security, as it allows for better monitoring and control over the connected ecosystem.

In conclusion, Cisco Systems 3.6.6 embodies a comprehensive approach to modern networking challenges. Its emphasis on automation, advanced security features, interoperability, and IoT support positions it as a pivotal solution for businesses looking to enhance their operational capabilities and embrace digital transformation. As organizations worldwide adapt to an ever-evolving technological landscape, Cisco Systems 3.6.6 stands out as a reliable partner in navigating these complexities.
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