mikrotik mpls

PPP transmission over Ethernet (pppoe)Rfc2526 any subnet transfer address reserved by IPv6Rfc2541 DNS Security Operation considerationsRfc2547 BGP/MPLS VPNsRfc2554 SMTP service authentication extensionRfc2560 X.509 Internet Public Key Infrastructure Online Certificate Status Protocol-OCSPRfc2570 standard Interconnected Network Management Framework IntroductionRfc2577 FTP security considerationsRfc2581 TCP congestion controlRfc2582 Fast TCP recovery a

) refers to the establishment of a secure network connection on a non-secure network. Generally, it provides the following services: verification, encryption, and data integrity. VPN can be divided into leased line VPN and dial-up VPN (also known as VPDN, virtual private Dialing Network) according to the access method. According to the protocol type, the second layer tunnel protocol includes the point-to-point tunnel protocol (PPTP, point to Point tunnel protocol), L2 forwarding protocol (l2f, L

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

The LDP determines the integrity of the session by detecting the LDPPDU transmitted on the session connection, LSR a live state timer for each session, refreshes the timer every time a LDPPDU is received, and if the timer times out before the new LDPPDU is received, LSR thinks the session is interrupted and the equivalence relationship fails. LSR closes the corresponding transport layer connection and terminates the session process. Second, the establishment of LSP in the

nearly 30%, mainly because 3Com products easy to install, management and maintenance, can be said that 3Com of Gigabit Ethernet technology to popularize the work. The 3Com superstack 3 switch 4.9 million Gigabit Ethernet switch product line has been a great success. It can be seen that the 3Com walk is Low-cost, high-performance route. Foundry from high to low has Bigiron, Fastiron and Netiron several series of products, including Bigiron backplane bandwidth up to 480Gbps. It is worth mentioni

. BigHammer is a network convergence Service At present, the development of the network shows a clear convergence trend, which includes business convergence, technology convergence, and network convergence. The BigHammer6800 core switch of the WAN network adopts the distributed CrossBar and distributed switching architecture to solve problems such as large-capacity switching and multi-service provision, therefore, it can help users' networks better achieve these convergence. For the integration

development of the network shows a clear convergence trend, which includes business convergence, technology convergence, and network convergence. The BigHammer6800 core switch of the WAN network adopts the distributed CrossBar and distributed switching architecture to solve problems such as large-capacity switching and multi-service provision, therefore, it can help users' networks better achieve these convergence. For the integration of data, voice, and video services, the CrossBar chip of the

layer-3 routing protocol to divide into several network segments for manageability. Vro with VRF function is subdivided into one virtual network VRF segments A vro or a layer-3 switch into multiple independent virtual devices. Each vro supports a single virtual network. Vrouters support standard routing protocols such as OSPF or BGP. The routing protocol operations on each vro are unrelated to those on other vrouters on the same physical device. Each vro has a set of independent routes and forw

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

network. The encapsulated data packets are routed between the two endpoints of the tunnel through the public network. The logical path of the encapsulated data packet transmitted over the public network is called a tunnel. Once the network endpoint is reached, the data will be unwrapped and forwarded to the final destination. Note: tunneling refers to the entire process, including data encapsulation, transmission, and settlement.2. QoS TechnologyThe Chinese meaning of QoS technology is service

in the same city, the network mode can be implemented by MPLS or SDH leased line network or bare fiber mode to achieve point-to-point application. MSTP (multi-service Transfer Platform) (Multi-service delivery platform based on SDH) is a multi-service node that provides unified network management based on SDH platform, which realizes the access, processing and transmission of TDM, ATM, Ethernet and other services.2, the domestic enterprise VPN networ

This is an interview question for someone in early October. After-sales position: Senior Network Engineer. The interviewer is a three-member CCIE. The interview lasted more than two hours, and he was very impressed. Now this offer is basically determined, and the subject is still considering situations such as treatment and work pressure before deciding whether to accept this offer. the subject also posted interview questions on his blog, so I am also daring to post them. 1. In the current 650

header for sending. The new header provides routing information so that encapsulated load data can be transmitted through the interconnected network. The encapsulated data packets are routed between the two endpoints of the tunnel through the public network. The logical path of the encapsulated data packet transmitted over the public network is called a tunnel. Once the network endpoint is reached, the data will be unwrapped and forwarded to the final destination. Note: tunneling refers to the

can be compatible with Frame Relay FR) business, leased line data business DDN), and support for PSTN and N-ISDN business.2) compatibility with existing IP technologies: the compatibility between ATM and IP technologies includes Layer 2 data link layer, for example, LAN simulation-LANE) and Layer 3 network layer) such as CIPOA, MPOA, and MPLS ). Thanks to the above advantages of ATM technology, it has been widely valued by Telecom and computer networ

SDN promotes vro Technology Revolution Over the past 30 years, IP networks centered on routers and switches have always followed Moore's Law to build a modern information civilization with other IT devices. As the core device at the WAN and LAN egress, routers have always played a key role and have undergone continuous development and numerous upgrades. Today, the router interfaces have changed from a wide variety of narrow-band interfaces, such as X.25, E1, ATM, POS, and SDH to broadband pure

network technology. What is typical is that the IP address is placed on an ATM.4. Multi-Protocol Label exchangeMulti-Protocol Label Switching (MPLS) allows you to add a packet header before an IP packet header to establish a channel. This does not process the content of IP packets. A fixed-length label is used to speed up the MPLS switch's route table search and reduce the burden on the switch.

DIY is not the best way to implement SD-WAN, diy does not implement sd-wan WAN is not designed for the load that most autumn leaves need to process at present, and the data requirements of distributed enterprises are increasing exponentially; almost all enterprises use cloud computing technology in some form. The Internet of Things is constantly expanding the scope of the network. The devices connected to the network far exceed servers, PCs, tablets, and smart phones. As a result, many are eage

layer. The fusion at the core transport layer is represented as a Unified IP/MPLS-based core network that will become a multi-service converged network, it can support all wired and wireless, mobile and fixed as well as voice, data and multimedia services. A dozen different service networks will be integrated into a single unified IP/MPLS service network platform; IP/

TradingIP address 40.1.1.5 255.255.255.0IP OSPF network point-to-point!Interface fastethernet0/0No IP addressDuplex AutoSpeed auto!Interface fastethernet0/0.100Encapsulation dot1q 100IP VRF Forwarding RetailIP address 192.168.35.5 255.255.255.0!Interface fastethernet0/0.200Encapsulation dot1q 200IP VRF Forwarding TradingIP address 172.16.35.5 255.255.255.0!Interface FASTETHERNET0/1IP VRF Forwarding RetailIP address 30.1.1.5 255.255.255.0Duplex AutoSpeed auto!Router OSPF VRF RetailLog-adjacency-

standard. MPLS is widely popularized in telecommunication network, Martini Draft is the technology that uses MPLS VPN technology to transmit Ethernet data transparently, the VLAN tag of transmission stream is mapped with MPLS label, this VPN channel can take advantage of MPLS Traffic management characteristics to ensu