Layer-3 (L3) mobility allows a client to roam without losing its IP address and sessions. If WLAN access parameters are the same across these networks, clients connected to APs in a given Cloud Network Manager network can roam to APs in a foreign Cloud Network Manager network and continue their existing sessions using their IP addresses. You can configure a list of Virtual Controller IP addresses across which L3 mobility is supported.

The HP Cloud Network Manager Layer-3 mobility solution defines a Mobility Domain as a set networks, with the same WLAN access parameters, across which client roaming is supported. The Cloud Network Manager network to which the client first connects is called its home network. When the client roams to a foreign network, an AP in the home network (home AP) anchors all traffic to or from this client. The AP to which the client is connected in the foreign network (foreign AP) tunnels all client traffic to or from the home AP through a GRE tunnel.

Figure 7: Routing of traffic when the client is away from its home network

When a client first connects to Cloud Network Manager network, a message is sent to all configured Virtual Controller IP addresses to see if this is an L3 roamed client. On receiving an acknowledgment from any of the configured Virtual Controller IP addresses, the client is identified as an L3 roamed client. If the AP has no GRE tunnel to this home network, a new tunnel is formed to an AP (home AP) from the home network of the client.

Each foreign AP has only one home AP per Cloud Network Manager network to avoid duplication of broadcast traffic. Separate GRE tunnels are created for each foreign AP / home AP pair. If a peer AP is a foreign AP for one client and a home AP for another, two separate GRE tunnels are used to handle L3 roaming traffic between these APs.

If client subnet discovery fails on association due to some reason, the foreign AP identifies its subnet when it sends out the first L3 packet. If the subnet is not a local subnet and belongs to another network, the client is treated as an L3 roamed client and all its traffic is forwarded to the home network through a GRE tunnel.

Configuring L3-mobility

To configure a mobility domain, you have to specify the list of all Cloud Network Manager networks that form the mobility domain. To allow clients to roam seamlessly among all the APs, specify the VC IP for each foreign subnet. You may include the local Cloud Network Manager or VC IP address, so that the same configuration can be used across all Cloud Network Manager networks in the mobility domain.

HP Cloud Network Manager User Guide

Wireless configuration 76

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HP Cloud Network Manager Software manual Configuring L3-mobility
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Cloud Network Manager Software specifications

HP Cloud Network Manager is a robust software solution designed to simplify and enhance the management of network infrastructure in cloud environments. As organizations increasingly shift toward cloud computing, they require comprehensive tools to oversee complex network deployments. HP Cloud Network Manager rises to this challenge, offering a powerful suite of features aimed at optimizing performance, automating tasks, and ensuring reliable connectivity.

One of the main features of HP Cloud Network Manager is its intuitive dashboard, which provides users with real-time insights into network operations. This centralized interface allows administrators to monitor the status of various components, identify potential issues, and respond swiftly to anomalies. With advanced analytics capabilities, the software empowers users to make data-driven decisions that enhance network efficiency.

Another critical feature of this software is its automation capabilities. HP Cloud Network Manager simplifies routine network management tasks, such as configuration, provisioning, and software updates, allowing IT teams to focus on strategic initiatives rather than mundane maintenance. Automation reduces the risk of human error and accelerates deployment times, significantly increasing operational agility.

The software also supports multi-cloud environments, enabling organizations to manage their network resources across different cloud platforms seamlessly. This flexibility is essential for businesses that utilize various cloud providers and wish to maintain a unified network strategy. Coupled with its compatibility with open standards, HP Cloud Network Manager facilitates integration with existing IT ecosystems, ensuring a smooth transition to advanced cloud solutions.

Security is a top priority in today's digital landscape, and HP Cloud Network Manager includes integrated security features to protect network assets. It provides visibility into traffic patterns, helping to detect and mitigate potential threats before they become significant issues. Enhanced security protocols ensure that sensitive data remains protected during transit and at rest, aligning with compliance requirements.

Finally, HP Cloud Network Manager is built on cutting-edge technologies, including artificial intelligence and machine learning, which enable proactive network management. These technologies predict network behavior, assisting administrators in optimizing resources and anticipating potential challenges. As a result, organizations can achieve enhanced reliability and performance from their network infrastructure.

In summary, HP Cloud Network Manager is an essential tool for businesses looking to improve their cloud network management capabilities. With its powerful features, supportive technologies, and commitment to security, it stands out as a reliable solution for navigating the complexities of modern network environments.
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