IELAB

Ccie lab exam  SNMP protocol basic configuration With the increasing scale of the network, the number of devices in the existing networks is increasing.When these devices fail, the device cannot report faults and the network administrator cannot locate and rectify the faults in time. As a result, the network maintenance efficiency is reduced and the maintenance workload is greatly increased.In order to solve this problem, the device manufacturer has already provided network management functions in some devices, so that the network management can remotely check the statu...

CCIE EXAM DUMPS Three minutes to learn the practical application of ICMP protocol ICMP is the Internet Control Message Protocol . It is a sub-protocol of the TCP/IP protocol suite for passing control messages between IP hosts and routers.Control message refers to the network itself, such as the network is unreachable, the host is reachable, and the route is available.Although these control messages do not transmit user data, they play an important role in the transmission of user data. ICMP protocol format: From a technical point of view, ICMP is a "error detection and reward mechanism".ccie exam dumps.Its purpose is to enable us to detect the connection status of the network and ensure the accuracy of the connection. Its functions are mainly:  Detect if the remote host exists. Establish and maintain routing data. Redirect the data transfer path (ICMP redirection). One application of ICMP is Ping. Ping is a common tool for detecting network connectivity and is a...

Ccie lab dumps SD-WAN and SDN differences Software Defined Network (SDN) is a new type of network architecture that implements separate network control and forwarding to form a logically centralized unified controller.In turn, the software programmable interface is opened on the controller for service call, and the purpose of flexible configuration of the network is achieved.In the cloud computing data center, ccie lab dumps.providing virtual resource services is its most important technical realization, and the network is also provided as a service to customers.The network needs to provide dynamic, on-demand, isolated network environment and custom network service chain connection services for different users and applications. These are the traditional network architectures that cannot be met, and SDN was born because of this.ccie lab dumps Although SDN was not born for a long time, it has been greatly developed. SDN-related startups have sprung up, and traditional network equipment ...

Ccie exam dumps GLBP gateway load balancing protocol principle GLBP( the Gateway Load Balancing Protocol), is Cisco's proprietary protocol.LBP not only provides redundant gateways, but also provides load balancing between gateways.He compensates for the limitations of existing redundant router protocols. Ccie exam dumps.The goal of designing GLBP is to automatically select and use multiple available gateways simultaneously.Unlike HSRP and VRRP, G LBP can make full use of resources without having to configure multiple groups and manage multiple default gateway configurations. Up to 4 routers in the GLBP group can be used as the IP default gateway. These gateways are called AVF (Active Virtual Forwarder).ccie exam dumps.GLBP automatically manages the allocation of virtual MAC addresses and decides who is responsible for handling the forwarding work (this is the key to distinguishing between HSRP and VRRP, which has a virtual IP in GLBP but correspo...

Ccie exam fee the difference between SD-WAN and MPLS Before we talk about the difference between SD_WAN and MPLS, let's take a look at what both of them are for. SD-WAN, a wide-area software-defined network, is a service formed by applying SDN technology to a wide-area network scenario. Ccie exam fee.This service is used to connect enterprise networks, data centers, Internet applications, and cloud services across a wide geographic area.A typical feature of this service is the ability to 'cloud' the network control capabilities through software, supporting the application's perceived network capabilities. Multi-Protocol Label Switching (MPLS) is a new generation of IP high-speed backbone network switching standard, proposed by the Internet Engineering Task Force (IETF).MPLS uses a label for data forwarding. When a packet enters the network, it is assigned a short-length tag of a fixed length and encapsulates the tag with the packet. During the entire forwarding proces...

A minute to learn about the misunderstanding of SD-WAN Before we talk about the misunderstanding of SD-WAN, let's take a brief look at what SD-WAN is. SD-WAN, a wide-area software-defined network, is a service formed by applying SDN technology to a wide-area network scenario. Ccie certification cost .This service is used to connect enterprise networks, data centers, Internet applications, and cloud services across a wide geographic area.It is designed to help users reduce their wide area network (WAN) expenses and increase network connectivity flexibility. SD-WAN is more than just a buzzword, it is already bringing benefits to early adopters.Ccie certification cost .The first word about SD-WAN appeared in the public view was published in network computing in September 2014, But in fact, the concept of SD-WAN comes from the earlier emergence of Hybrid WAN, which is to solve the game problem like unstable Internet interconnection in the enterprise market and expensive MPLS VPN.At t...

CCIE LAB EXAM  Three minutes to learn the application of NAT address translation technology NAT translates the private IP address into the external network IP address through the border route, and records the conversion mapping record in the NAT address translation table of the border route.When external data is returned, the route uses NAT technology to query the NAT translation table, and then replaces the destination address with the IP address of the intranet user. ccie lab dumps Before we learned the theoretical information of NAT, we know its specifi...

Ccie certification cost Considerations for system migration to cloud servers Enterprises often encounter many problems when they migrate their existing systems to cloud servers.For example: data loss, website crashes, database errors, etc. Ccie certification cost,\.These problems can lead to loss of time and resources, resulting in damage to the company's interests.As more and more companies move their servers to the cloud, these issues are becoming more and more obvious.Ccie certification cost.How should we reduce the chances of these problems and provide the least interference to the enterprise to smoothly implement cloud migration? First, what are the benefits of server migration to the cloud? 1. Reduce investment costs; 2.The latest operating system and the latest infrastructure; 3. It is easier to maintain and manage; 4. Higher flexibility and scalability; 5. Longer running time and a good business chain. Before starting a migration, you first need to ...

Ccie lab exam groupThree minutes to understand the PPPOE agreement PPPoE (Point-to-Point Protocol Over Ethernet), a point-to-point protocol on Ethernet, is a network tunneling protocol that encapsulates Point-to-Point Protocol (PPP) in an Ethernet (Ethernet) framework.Because the PPP protocol is integrated in the protocol, it can realize the functions of authentication, encryption and compression that traditional Ethernet cannot provide. Ccie lab exam It can also be used in protocol systems such as cable modems and digital subscriber lines that provide access services to users via Ethernet protocols. Compared with the traditional access method, PPPoE has a high performance-price ratio. It is widely used in a series of applications including cell network construction. Currently, the popular broadband access method ADSL uses the PPPoE protocol. As cost-reduction broadband technologies become more prevalent, DSL (digital subscriber line) is also being used more and more.It uses...

Three major defects of 5G millimeter wave            According to the 3GPP 38.101 agreement, 5G NR mainly uses two frequency segments: FR1 band and FR2 band.The frequency range of the FR1 band is 450MHz - 6GHz, also known as the sub 6GHz band; the frequency range of the FR2 band is 24.25GHz - 52.6GHz, which is usually called millimeter wave (mmWave).            With regard to millimeter waves, people have been arguing over the natural shortcomings of millimeter waves: large signal attenuation, easy blocking, and short coverage. So what is the matter?           IELAB  .    ccie lab dumps  Signal attenuation is large:         When wireless signals travel through the atmosphere, signal attenuation occurs due to the absorption and scattering of wireless signals. ccie lab dumps.We use dB/km to define the attenuation of the s...

CCIE exam dumps  Cisco PVLAN configuration details PVLAN is private VLAN . The PVLAN uses two-layer VLAN isolation technology. Only the upper VLANs are visible globally, and the lower VLANs are isolated from each other.ccie exam dumps .If each port of a switch or IP DSLAM device is zoned as one (lower) VLAN, isolation of all ports is achieved. pVLANs are typically used on intranets to prevent communication between network devices connected to certain interfaces or groups of interfaces, but allow communication with the default gateway. Although each device is in a different pVLAN, they can use the same IP subnet. PVLANs allow traffic to be limited between certain ports within the same VLAN PVLAN implements port isolation in one VLAN. With the rapid development of the network, users put forward higher requirements for the security of network data communication, such as preventing hacker attacks and controlling virus transmission, etc., all of which require the relat...

Ccie exam dumps DHCPv6 technology overview Dynamic Host Configuration Protocol (DHCP) was designed to handle the assignment of IP addresses and other network information to computers so that computers can communicate automatically over the network. DHCPv6 (Dynamic Host Configuration Protocol for IPv6) is a protocol designed for IPv6 addressing schemes that assigns IPv6 prefixes, IPv6 addresses, and other network configuration parameters to hosts Compared with other IPv6 address allocation methods (manual configuration, stateless autoconfiguration through network prefix in router advertisement messages, etc.), DHCPv6 has the following advantages: 1. Not only can IPv6 addresses be assigned, but also IPv6 prefixes can be assigned to facilitate automatic configuration and management of the entire network.ccie exam dumps 2. Better control over the allocation of addresses. Through DHCPv6, not only can the address/prefix assigned to the host be recorded, but also a specific address/prefi...

publish Website: http://ielab.network IELAB First, understand IPV6 When using the mobile app, I found that there is a small line "Supported IPv6" at the bottom of the welcome page. According to global IPv6 statistics released by Google, by the end of November 2018, the global IPv6 penetration rate has exceeded 25.04%, while China's IPv6 penetration rate is only 2.93%.In 2019, both operators and Internet companies have begun to popularize IPv6 on a large scale. So what is IPv6?（ccie lab dumps） When it comes to IPv6, you can't help but mention the IPv4 protocol you are using now. "The father of the Internet" Wendun Joseph created the Internet communication protocol "IPv4" in 1977, allowing global computers to connect to each other. An IP address is a series of numbers assigned to each computer, website, or other networked device, and each IP address is unique. Since the IP address length specified in IPv4 is 32 bits, the rapid development of the...