Today, companies need 99.999% (5 9) of infrastructure uptime to maximize the performance of key business applications and increase productivity. Unfortunately, traditional Ethernet LAN switching systems lack the features and functionality required to support this level of reliability. The new development direction to help solve this problem is to adopt a modular architecture in the Ethernet LAN switch operating system.
The health and robustness of an Ethernet switch operating system is critical to maximizing network uptime. The traditional single-chip operating system design uses a statically compiled image and runs in a memory address space. This means that network switches always operate in a "simultaneous and dead" way. If any component or application in the operating system fails or needs to be upgraded, the entire system must be shut down and restarted to stop transmitting all packets.
In a modular design, network functions are divided into different processes with standard interfaces. In this architecture, well-defined processes run independently. If you need to add a new process, or if a process fails and needs to be upgraded or must be managed independently, the state of the process does not affect any other function of the switch. This means that the switch can continue to provide users with network services and consistent connectivity.
Network administrators no longer need to schedule planned downtime for deployment security or maintenance upgrades. Network devices can be upgraded or maintained during off-peak hours, while network users and applications can continue to work without interruption.
The modular approach also allows administrators to load new application modules at run time without affecting the uptime of the device. For example, applications such as Secure Shell can be loaded and started dynamically, making it possible to deploy secure remote management for network devices without affecting data flow forwarding.
In contrast, if an administrator wants to install a new application on a switch running a single-chip operating system, the entire operating system package will be downloaded to this switch. The switch needs to be restarted to start new features in the uploaded operating system. Before the operating system resumes operation and network connectivity is re-established, all network traffic will be temporarily interrupted.
Another benefit of the modular switching operating system is good start and stop capabilities. This capability makes it possible to replace applications when new security vulnerability warnings (for example) are implemented for a certain protocol or protocol.
In addition, the dynamic loading and start/stop capabilities make it easier to manage applications that have shorter and shorter update cycles. For example, new wireless security protocols can be deployed without affecting data communications with the server or VoIP traffic.
The modular design also allows managers to adjust the operating system kernel while the switch is running. When a new function is needed in the kernel, a loadable module is used to avoid direct modification of the kernel. The kernel loadable module provides features such as VLAN mapping, QoS mapping, multicast cache handling, access control table upgrades, and processing. The kernel loadable module facilitates the process of adding more value to the kernel without having to replace the entire kernel.
The use of a switching infrastructure for the next-generation modular operating system will help companies build a robust enterprise Ethernet LAN infrastructure with the higher availability required to support multiple converged applications, including VoIP and wireless data.
The health and robustness of an Ethernet switch operating system is critical to maximizing network uptime. The traditional single-chip operating system design uses a statically compiled image and runs in a memory address space. This means that network switches always operate in a "simultaneous and dead" way. If any component or application in the operating system fails or needs to be upgraded, the entire system must be shut down and restarted to stop transmitting all packets.
In a modular design, network functions are divided into different processes with standard interfaces. In this architecture, well-defined processes run independently. If you need to add a new process, or if a process fails and needs to be upgraded or must be managed independently, the state of the process does not affect any other function of the switch. This means that the switch can continue to provide users with network services and consistent connectivity.
Network administrators no longer need to schedule planned downtime for deployment security or maintenance upgrades. Network devices can be upgraded or maintained during off-peak hours, while network users and applications can continue to work without interruption.
The modular approach also allows administrators to load new application modules at run time without affecting the uptime of the device. For example, applications such as Secure Shell can be loaded and started dynamically, making it possible to deploy secure remote management for network devices without affecting data flow forwarding.
In contrast, if an administrator wants to install a new application on a switch running a single-chip operating system, the entire operating system package will be downloaded to this switch. The switch needs to be restarted to start new features in the uploaded operating system. Before the operating system resumes operation and network connectivity is re-established, all network traffic will be temporarily interrupted.
Another benefit of the modular switching operating system is good start and stop capabilities. This capability makes it possible to replace applications when new security vulnerability warnings (for example) are implemented for a certain protocol or protocol.
In addition, the dynamic loading and start/stop capabilities make it easier to manage applications that have shorter and shorter update cycles. For example, new wireless security protocols can be deployed without affecting data communications with the server or VoIP traffic.
The modular design also allows managers to adjust the operating system kernel while the switch is running. When a new function is needed in the kernel, a loadable module is used to avoid direct modification of the kernel. The kernel loadable module provides features such as VLAN mapping, QoS mapping, multicast cache handling, access control table upgrades, and processing. The kernel loadable module facilitates the process of adding more value to the kernel without having to replace the entire kernel.
The use of a switching infrastructure for the next-generation modular operating system will help companies build a robust enterprise Ethernet LAN infrastructure with the higher availability required to support multiple converged applications, including VoIP and wireless data.
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