qubit asic

The Design Technology of the core switch determines its future development direction and networking in big data traffic and complex application environments, which is undoubtedly disastrous for the entire core switch system, therefore, the data plane must be strictly separated from the control plane and management plane. The core switch design system is the most basic and important for the core switch. It greatly determines the core switch's processing and service support capabilities. Currently

is to use hardware (a dedicated processor) instead of traditional software to implement Protocol Resolution and packet forwarding. Line rate switching has the advantages of simple design, high reliability, low power consumption, and many features. The implementation of line rate switching also relies on distributed processing technology, which can process data streams from multiple ports at the same time. Therefore, layer-3 switching is generally a parallel processing system used by a central p

The core switch is still quite common. So I studied the development direction of the core switch design technology and shared it with you here. I hope it will be useful to you. The core switch design system is the most basic and important for the switch. It greatly determines the core switch's processing and service support capabilities. Currently, several common feasible technologies that constitute the vswitch design system are as follows: 1. General CPU The advantage of general-purpose CPU is

is its strong scalability, low implementation cost, and effectively avoids the bus bottleneck caused by system expansion. Main technologies of LAN switches Because a LAN switch uses a virtual line exchange method, it is technically possible to use different bandwidths between input and output ports, or without a transmission bottleneck, the high-speed transmission of data between ports greatly improves the data transmission of network information points and optimizes the network system. The mai

early detection Advanced ASIC RTP, RTCP Double funnel universal cell rate algorithm Dwdm Rsvp Rated access crash rate Sonet Diffserv, CAR Cisco Express Forwarding CPU processing power g.729, G.729a:cs-acelp Extended Access table Adsl,radsl,sdsl frf.11/frf.12 Token bucket algorithm Multilink PPP Frame Relay D

Layer-3 Ethernet switches are quite common, so I have studied the problems related to the CPU packet sending and receiving of layer-3 Ethernet switches. I would like to share them with you here, hoping they will be useful to you. Layer-3 Ethernet switches are developing rapidly. On the one hand, bandwidth and switching capacity of network devices are greatly increased, and the types of protocols supported by devices are also increasing with the increasing demand of users. How to ensure the norma

course, it is mainly embodied in the personal firewall, because it is purely software and easier to implement. This firewall technology can effectively prevent the spread of viruses in the network, more active than waiting for attacks. Firewalls with virus protection can greatly reduce the company's losses. 2. Firewall Architecture Development Trend With the increase of network applications, higher requirements are put forward for network bandwidth. This means that the firewall must be able

-display hardware and Radeon_modeset_init () (in radeon_display.c) to Itialize the display hardware.The main workhorse of the driver initialization is radeon_device_init () found in radeon_device.c. first we Initializ e a bunch of the structs used in the driver. then Radeon_asic_init () is called. This function sets the Asics specific function pointers for various things such as Suspend/resume callbacks, ASIC reset, Set/process IRQs, Set/get engine cl

10 standard layer-3 switch technology hotspots), layer-3 switches basically have all the functions of traditional switches. The layer-3 switches shall prevail. The specific technical implementation of switches includes distributed pipelines, dynamic and Scalable Memory. Layer 3 switch technology: programmable ASIC ASIC is a dedicated Integrated Circuit dedicated to optimizing Layer 2 processing. It is the c

1.3.2.3 Memory ModelIn eka2, we define the ASIC memory structure in a module, that is, the memory model. Therefore, the memory management model encapsulates important MMU (Memory Management Unit) differences. For example, whether a cache is virtual or actually marked, that is, whether or not MMU exists. In eka1, memory and MMU assumptions are distributed throughout the operating system, making it difficult to produce a Mobile Phone Based on an

application traffic control products, it is generally difficult to achieve a processing capability of 1 GB, and many products still use this architecture on the market. 2. ASIC Architecture Application Specific intergrated circuit (dedicated ic) accelerates hardware processing through specially designed ASIC chip logic. The advantage is that ASIC can solidify t

specialized processing capabilities and low costs makes DSP well suited for implementing signal processing functions in VoIP systems. The computing overhead of G.729 voice compression on a single speech stream is very high, with a requirement of 20 MIPS. If a central CPU is required to process multiple speech streams, it also implements the routing and system management functions, this is unrealistic. Therefore, you can use one or more DSPs to detach the computing tasks of the complex voice com

pure Layer 2 solution is the cheapest solution, however, it provides the least control over subnet division and broadcast restrictions. Layer-3 switches provide dynamic integration support for all levels in the classification. Traditional general-purpose routers and external switches can also achieve this goal. However, compared with this solution, layer-3 switches require less configuration, less space, and less wiring, cheaper and more reliable performance. A layer-3 Switch has all the functi

The principle of layer-3 switching has always been the most difficult for many readers to understand. In daily reader exchanges, we often see readers raise this issue, especially the differences and connections between layer-3 switching and routing principles. In fact, a layer-3 switch is closely related to both layer-2 switching and routing, and relies on layer-3 ARP protocol. The following describes the principle of layer-3 switching. Layer-3 Switching Principle L2 switches generally use the C

different applications between the client and the server, if a vro is fully functional, all this work can be done at a wire speed and multiple types of control can be implemented. Such a vswitch is called a vro. The query and control functions of the swagon router are implemented by hardware ASIC. The more information ASIC can collect about the traffic of the first packet, the more precise the control leve

contrast, multilayer switched routers focus all of these functions on a dedicated special application integrated circuit or ASIC. The ASIC is less expensive than traditional routers and is typically distributed across network ports. Today, a typical switch/router may include 50 ASIC in a single device that can support hundreds of interfaces. The new

computers need to communicate with other computers outside their local network, in order to send packets outside the group, they must first send packets to their nearest router. Routers provide connectivity and security boundaries between the company and the Internet, as well as connections between groups within a company (intranet). Traditional routers are used only when absolutely necessary, such as connecting remote offices over a WAN, connecting to the Internet, or isolating groups with hi

nearest router in order to send packets to their own group. Routers provide connectivity and security boundaries between the company and the Internet, as well as connections between groups within a company (intranet). Traditional routers are used only when absolutely necessary, such as connecting remote offices over a WAN, connecting to the Internet, and isolating the key, high-bandwidth-demanding groups in the company. Traditional routers were expensive (and still are), and there was no signi

address table,The size of the address table (generally two Representation Methods: one is beffer ram and the other is the value of the MAC table ),The address table size affects the access capacity of the vswitch;(3) Another layer-2 switch generally contains an ASIC dedicated for processing data packet forwarding.(Application specific Integrated Circuit) chip, so the forwarding speed can be very fast.Because different manufacturers use different

, Lenovo networks have become the foundation for building a "trusted network environment" for users. Enable Qos to facilitate reasonable use of Bandwidth Resources In terms of the switching structure of the entire machine, the shared memory structure, that is, the central switching matrix plus the distributed switching matrix, implements a non-blocking switching structure, this can avoid performance degradation caused by the activation of multiple functions in the traditional routing system. I