mpls carrier

Editor's note: This series is divided into three ONOS white papers to translate, and then theONOS White Paper medium ONOS Architecture , this article translates the remainder of the white Paper ONOS Value proposition and summary, if there are inappropriate, please correct me. 6.ONOS Value Proposition -- carrier use case6.1 Multilayer SDN ControlService providers operate multi-tiered networks. For example, a service provider might operate an IP Data N

transmission network that is interconnected by multiple manufacturers. In addition to dynamic control over Ethernet private line services, SUPPERCOMM05 also includes transmitting Ethernet virtual services through optical transmission networks. The client network can use the UNI2.0 signaling interface to control a 1-bit Ethernet Access link to dynamically request connections from the carrier network. 2. IETFGMPLSUNI Because a large number of SCNET/SDH

machines is that I either want to provide a Server Load balancer function, or want to provide a backup function, to present only one IP address externally, that is to say, the roles and locations of IP nodes can be separated. In fact, VPN + NAT can be used to meet this requirement. For example, both Beijing and Shanghai backup centers can use 192.168.1.13 to indicate the role address (if you do not use a private address, you do not need to use NAT ), the VPN encapsulation policy determines wher

other is the reliability of the network layer. Network reliability is an important part of man router reliability assurance. Due to the slow convergence of traditional router protocols (IGP in seconds and BGP in minutes), it cannot meet the requirements for carrying real-time services. Network reliability is also an active area in the new technology of man routers. Currently, the new network-layer reliability technologies mainly include fast convergence of IP routes, end-to-end LSP backup,

other is the reliability of the network layer. Network reliability is an important part of man router reliability assurance. Due to the slow convergence of traditional router protocols, IGP is in seconds and BGP is in minutes. Network reliability is also an active area in the new technology of man routers. Currently, the new network-layer reliability technologies mainly include fast convergence of IP routes, end-to-end LSP backup, MPLS fast re-routin

devices. They can also be used as high-performance edge aggregation devices for carrier service networks or operator operation support networks.NE20 according to the number of business slot can be divided into NE20-8, NE20-4, NE20-2 three products.Figure 2. Quidway®NetEngine 20 series routersMasterFeatures: NE20 adopts the High-Speed Interface forwarding and Control Plane Separation Technology. The high-speed interface forwarding engine uses a

Network Test content Although operators tend to build private networks based on their current network construction ideas, as a carrier-level IP bearer network, from the perspective of actual deployment of existing networks, the core network should have some common content, namely, deploying MPLS technology across the network, supporting BGP/MPLSVPN, providing QoS support and high reliability. Therefore, in

is developed from switches, and GSR internally splits data into standard cell exchanges, in terms of queue and scheduling, GSR is better as a pure core router because it has been tested for many years. In terms of price, 7609 is still relatively expensive, while GSR is cheaper in some cases. 2. Which route table of ISIS level1 includes? When there are multiple levels-1-2 exits, Where do other routes learn from and how do I select routes? A: Isis level1 and level2 maintain LSD and SPF. level1's

With the development of the exchange industry, many new products have emerged. Among them, the Core routing switch is one of them, and it supports high-performance 10-Gigabit interfaces to improve the overall efficiency of the network. Quidway S8500 series 10-Gigabit core route switch is a new generation high-performance 10-Gigabit core route switch developed by Huawei 3Com, it can be widely used in the core layer of the E-government network, the core layer of the campus network and the Educatio

services, including L3 mpls vpn, VPLS, VLL, MCE, and HoPE. The S8500 series products follow the design philosophy of both business and performance. On the one hand, the increase in bandwidth and network scale will promote the performance and capacity of the 10-Gigabit core route switch. On the other hand, the business development requires the 10-Gigabit core route switch to be more intelligent and provide stronger business capabilities. S8500 series

The 10-ge core switch is still quite common. So I studied the perfect design concept of the 10-ge core switch and shared it with you here. I hope it will be useful to you. Quidway S8500 series 10-Gigabit core switches are a new generation of high-performance 10-Gigabit core route switch independently developed by Huawei 3Com, it can be widely used in the core layer of the E-government network, the core layer of the campus network and the Education Metropolitan Area Network, the core layer of the

The core route switch is a new generation switch product. Here we mainly introduce eight main features of the core route switch, quidway S8500 series 10-Gigabit core route switch is a new generation high-performance 10-Gigabit core route switch developed by Huawei 3Com. It can be widely used in the core layer of the E-government network, the core layer of the campus network and the Education Metropolitan Area Network, the core layer of the campus network and the enterprise network, the core laye

of attack often seriously consumes the service side of the broadband or host resources, a lot of damage.Most of the application-layer attacks are focused on HTTP, with a small portion of DNS.Domain Speed limitA separate speed limit can be made to the request in the domain name.DNS first packet DropThe DNS First packet drop method is seen in the common DDoS attacks DNS query flood defense section.DNS TC RetryThe DNS First packet drop method is seen in the common DDoS attacks DNS query flood defe

of attack often seriously consumes the service side of the broadband or host resources, a lot of damage.Most of the application-layer attacks are focused on HTTP, with a small portion of DNS.Domain Speed limitA separate speed limit can be made to the request in the domain name.DNS first packet DropThe DNS First packet drop method is seen in the common DDoS attacks DNS query flood defense section.DNS TC RetryThe DNS First packet drop method is seen in the common DDoS attacks DNS query flood defe

VLAN database is configured, you must enter exit to save it;VLAN troubleshooting: physical connection> Switch configuration> VLAN configuration;Physical connections include CDP and duplex;The Trunk is a link between two vswitches;802.1 p: Priority of the 802.1qTAG field;Tunnel requires two tags: one for the enterprise and one for the carrier. The carrier can transmit VLAN, CDP, VTP, STP, and other informat

switch connects to the aggregation switch through multi-link bundling. On the one hand, it can completely avoid second-layer loops and make full use of the uplink bandwidth of the access layer. Note that STP should be enabled even in L2 Networks without loops to prevent errors in device configuration and physical link maintenance. At the same time, although the network does not have a loop, STP may still affect the L2 network across multiple data centers. For example, when the network topology

Quidway S8500 series 10-Gigabit core multi-service routing switch is a new generation high-performance 10-Gigabit Core routing switch developed by Huawei 3Com, it can be widely used in the core layer of E-government network, campus network and education man core layer, campus network and enterprise network core layer, carrier IP Man core layer, and convergence layer.Quidway S8500 is designed based on the 10G platform and supports a new generation of h

crossover products based on Sonet/SDH continued to drop by 2013 in 22% to $0.2 billion. From these figures, we can see some obvious trends: G is driving the growth of core network spending and affecting the decision-making process of carrier's core network architecture. At present, OTN is the clear choice of the carrier's core network, and we believe it will continue in the next five years. The operator hopes to combine their own otns with the transmission platform. This is also the case in the

universal CPU. The combination of their specialized processing power and low cost makes the DSP well suited to perform signal processing functions in VoIP systems.g.729 speech compression on a single voice stream is computationally expensive and requires 20MIPS, and if a central CPU is required to handle multiple voice streams while also performing routing and system management functions, it is unrealistic to use one or more DSPs to offload the computational tasks of the complex speech compress

some layer-2 data exchange functions. However, QoS is weak for data services. On this basis, various equipment manufacturers further introduce the RPR, MPLS, and LCAS technologies into MSTP devices, enhance end-to-end QoS Assurance for services. By dividing business levels and implementing traffic engineering control, access congestion and fair algorithm policy control are achieved, and the burstable and unbalanced features of data service transmissi