eth memo eth/oam

2022-03-09 14:54:15

1. 什么是以太币/以太坊ETH

以太币（ETH）是以太坊（Ethereum）的一种数字代币，被视为“比特币2.0版”，采用与比特币不同的区块链技术“以太坊”（Ethereum），一个开源的有智能合约成果的民众区块链平台，由全球成千上万的计算机构成的共鸣网络。开发者们需要支付以太币（ETH）来支撑应用的运行。和其他数字货币一样，以太币可以在交易平台上进行买卖。

温馨提示：以上解释仅供参考，不作任何建议。入市有风险，投资需谨慎。您在做任何投资之前，应确保自己完全明白该产品的投资性质和所涉及的风险，详细了解和谨慎评估产品后，再自身判断是否参与交易。
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2. 比特币可以成为货币，那eth和eos又有什么作用呢可以投资么

比特币根本就不是货币，能买东西吗，能买火车票吗，能交房租费吗，怎么没有用比特币开工资的，eth和eos的作用就是割韭菜的工具，所以不可以投资！

3. 以太坊是什么东西

以太坊（英文Ethereum）是一个开源的有智能合约功能的公共区块链平台，通过其专用加密货币以太币（Ether，简称“ETH”）提供去中心化的以太虚拟机（Ethereum Virtual Machine）来处理点对点合约。

以太坊的概念首次在2013至2014年间由程序员Vitalik Buterin受比特币启发后提出，大意为“下一代加密货币与去中心化应用平台”，在2014年通过ICO众筹开始得以发展。

功能应用

以太坊是一个平台，它上面提供各种模块让用户来搭建应用，如果将搭建应用比作造房子，那么以太坊就提供了墙面、屋顶、地板等模块，用户只需像搭积木一样把房子搭起来，因此在以太坊上建立应用的成本和速度都大大改善。

具体来说，以太坊通过一套图灵完备的脚本语言（Ethereum Virtual Machinecode，简称EVM语言）来建立应用，它类似于汇编语言。

我们知道，直接用汇编语言编程是非常痛苦的，但以太坊里的编程并不需要直接使用EVM语言，而是类似C语言、Python、Lisp等高级语言，再通过编译器转成EVM语言。

以上内容参考：网络-以太坊

4. 电源模块上的eth是什么意思

咨询记录 · 回答于2021-12-27

5. 如何理解eth-trunk

Eth-Trunk接口是一种可以动态创建的接口，该类型接口可以绑定若干物理的以太网接口作为一个逻辑接口使用，实现增加带宽提高靠性的目的。

Trunk优势于：

1、通Trunk接口实现负载担Eth-Trunk接口内实现流量负载担。

2、某员接口连接物理链路现故障流量切换其用链路提高整Trunk链路靠性。

3、 Trunk接口总带宽各员接口带宽。

(5)eth模块是什么作用扩展阅读：

Trunk具体应用

1、Trunk功能用于交换机与服务器之间的相联，为服务器提供独享的高带宽。

2、Trunk功能用于交换机之间的级联，为交换机之间的数据交换提供高带宽的数据传输能力，提高网络速度，突破网络瓶颈，进而大幅提高网络性能（主要应用）。

Trunk功能举例

——例如：为增加带宽，提高连接可靠性，某网吧电影服务器是双网卡且作了绑定，与中心交换机的23、24端口连接；二层交换机的1、2端口与中心交换机的1、2端口连接，那么中心交换机需将1、2端口，23、24端口分别做Trunk。说明：这里的二层交换机也需支持Trunk。

参考资料：网络-Trunk链路

6. 华为5700交换机eth接口做什么用的怎么使用它

华为5700交换机eth可以作为管理口使用，交换机操作系统丢了，但是我可以通过eth口上传操作系统文件，跟console口的功能是类似的。

华为交换机从网桥发展而来，属于OSI第二层即数据链路层设备。它根据MAC地址寻址，通过站表选择路由，站表的建立和维护由CISCO思科交换机自动进行。

华为在美国、德国、瑞典、俄罗斯、印度以及中国的北京、上海和南京等地设立了多个研究所，近一半的员工从事着产品与解决方案的研发工作。

(6)eth模块是什么作用扩展阅读

华为是全球领先的电信解决方案供应商。我们拥有热诚的员工和强大的研发能力，快速响应客户需求，提供端到端的客户化产品、解决方案和服务，全力帮助客户商业成功，并通过我们的共同努力，不断丰富人们的沟通和生活。

华为产品和解决方案涵盖移动（LTE/HSPA/WCDMA/EDGE/GPRS/GSM, CDMA2000 1xEV-DO/CDMA2000 1X, TD-SCDMA和WiMAX）

核心网（IMS, Mobile Softswitch, NGN）、网络（FTTx, xDSL, 光网络, 路由器和LAN Switch）、电信增值业务（IN, mobile data service, BOSS）和终端（UMTS/CDMA）等领域。

7. ETH-以太坊是什么

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以太坊（英文Ethereum）是一个开源的有智能合约功能的公共区块链平台，通过其专用加密货币以太币（Ether）提供去中心化的虚拟机（“以太虚拟机”Ethereum Virtual Machine）来处理点对点合约。以太坊的概念首次在2013至2014年间由程序员Vitalik Buterin受比特币启发现在是2.0了。以太坊2.0也是整个币圈在翘首以待的东西。为了庆祝eth2.0的创世区块在12月1号诞生，中币在香港时间2020年11月20日17:00正式支持ETH2.0验证节点兑换，将自有ETH投入进行验证节点挖矿并兑换QETH以获得流动性，兑入即参与挖矿，现回馈用户福利，前1000枚ETH享受按照1:1.02比例超额兑换QETH。QETH对比ETH2.0的好处太多了：流动性有保障、用户无需承担技术成本、参与门槛无需32个ETH低至0.1ETH、节点由平台维护，收益依据ETH2.0发放。

8. 路由器eth0口的作用

一般说来路由器的端口均是可配置的，配成什么都可！
ETH0：以太网0号端口，如此而已

9. linux配置中eth0和eth1做什么用的

是一种光纤以太网接口卡，按照以太网通信协议进行信号传输。一般通过光缆与光纤以太网交换机连接。

Eth0和eth1用于区分网卡名。它们的含义与windows本地连接1和本地连接2相同。

这里的子网卡不是一个实用的网络接口，但是它可以作为一个集合接口在系统中闪现，比如eth0：1，eth1：2。

(9)eth模块是什么作用扩展阅读：

Linux操作系统嵌入了TCP／IP协议栈，协议软件具有路由转发功能。路由和转发依赖于在主机中安装多个网卡作为路由器。

当某一网卡接收到度包时，系统内核会根据度包的目的IP地址查询路由表，然后根据查询结果将度包发送到另一网卡，最后通过该网卡发送度包。主机的进程是路由器的核心功能。

路由功能是通过修改Linux内核参数来实现的。sysctl命令用于配置和显示／proc／sys目录中的内核参数。

出于安全原因，Linux内核默认禁止数据包路由和转发。在Linux系统中，有临时和永久两种方法启用转发功能。

10. ETH接口是什么

ETH接口指的是接口，是目前应用最广泛的局域网通讯方式，同时也是一种协议。而以太网接口就是网络数据连接的端口。
以太网的每个版本都有电缆的最大长度限制（即无须放大的长度），这个范围内的信号可以正常传播，超过这个范围信号将无法传播。
为了允许建设更大的网络，可以用中继器把多条电缆连接起来。中继器是一个物理层设备，它能接收、放大并在两个方向上重发信号。
(10)eth模块是什么作用扩展阅读
几种常见的以太网接口类型。
1、SC光纤接口
SC光纤接口在100Base-TX以太网时代就已经得到了应用，因此当时称为100Base-FX（F是光纤单词fiber的缩写），不过当时由于性能并不比双绞线突出但是成本却较高，因此没有得到普及，现在业界大力推广千兆网络，SC光纤接口则重新受到重视。
2、RJ-45接口
这种接口就是我们现在最常见的网络设备接口，俗称“水晶头”，专业术语为RJ-45连接器，属于双绞线以太网接口类型。RJ-45插头只能沿固定方向插入，设有一个塑料弹片与RJ-45插槽卡住以防止脱落。
3、FDDI接口
FDDI是目前成熟的LAN技术中传输速率最高的一种，具有定时令牌协议的特性，支持多种拓扑结构，传输媒体为光纤。光纤分布式数据接口（FDDI）是由美国国家标准化组织（ANSI）制定的在光缆上发送数字信号的一组协议。
参考资料来源：网络-以太网接口

1. What is Ethereum/Ethereum

Ethereum (ETH) is a digital token of Ethereum and is regarded as "Bitcoin version 2.0" , using the blockchain technology "Ethereum" that is different from Bitcoin, an open source public blockchain platform with smart contract results, a resonance network composed of thousands of computers around the world. Developers need to pay Ethereum (ETH) to support the operation of the application. Like other digital currencies, Ethereum can be bought and sold on trading platforms.

Warm reminder: The above explanation is for reference only and does not make any suggestions. There are risks in entering the market, so investment needs to be cautious. Before making any investment, you should ensure that you fully understand the investment nature of the product and the risks involved. After understanding and carefully evaluating the product, you can make your own judgment on whether to participate in the transaction.
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2. Bitcoin can become a currency, then What is the role of eth and eos? Can they be invested?

Bitcoin is not a currency at all. Can it buy things, buy train tickets, pay rent, and how come no one uses Bitcoin to pay wages? , eth and eos are just tools for cutting leeks, so they cannot be invested!

3. What is Ethereum

Ethereum (English Ethereum) is an open source public blockchain platform with smart contract functions. Through its dedicated cryptocurrency Ethereum ( Ether (referred to as "ETH") provides a decentralized Ethereum Virtual Machine (Ethereum Virtual Machine) to process point-to-point contracts.

The concept of Ethereum was first proposed by programmer Vitalik Buterin between 2013 and 2014 after being inspired by Bitcoin. Funding began to develop.

Functional applications

Ethereum is a platform that provides various modules for users to build Application, if building an application is like building a house, then Ethereum provides modules such as walls, roofs, and floors. Users only need to build the house like building blocks. Therefore, the cost and speed of building applications on Ethereum are greatly increased. improve.

Specifically, Ethereum uses a Turing-complete scripting language (Ethereum Virtual Machinecode, EVM language for short) to build applications, which is similar toAssembly language.

We know that programming directly in assembly language is very painful, but programming in Ethereum does not require the direct use of the EVM language, but high-level languages such as C language, Python, Lisp, etc., and then compiled converter into EVM language.

Reference for the above content: Network-Ethereum

4. What does eth on the power module mean?

Consultation record · Answered on 2021-12-27< /p>

5. How to understand eth-trunk

The Eth-Trunk interface is an interface that can be created dynamically. This type of interface can be bound to several physical Ethernet interfaces and used as a logical interface. , to achieve the purpose of increasing bandwidth and improving reliability.

Trunk has the following advantages:

1. Load balancing is achieved through the Trunk interface. Traffic load balancing is implemented within the Eth-Trunk interface.

2. If the physical link connected to a member interface fails, the traffic will be switched to the other link to improve the reliability of the entire trunk link.

3. The total bandwidth of the Trunk interface and the bandwidth of each member interface.

(5) What is the role of the eth module? Extended reading:

Trunk specific applications

1. The Trunk function is used for switches and The connection between servers provides exclusive high bandwidth for the server.

2. The Trunk function is used for cascading between switches, providing high-bandwidth data transmission capabilities for data exchange between switches, increasing network speed, breaking through network bottlenecks, and thereby greatly improving network performance (mainly application).

Examples of Trunk functions

——For example: In order to increase bandwidth and improve connection reliability, an Internet cafe movie server has dual network cards and is bound to 23 and 24 of the central switch. Port connection: Ports 1 and 2 of the layer 2 switch are connected to ports 1 and 2 of the central switch. Then the central switch needs to use ports 1 and 2 and ports 23 and 24 as trunks respectively. Note: The layer 2 switch here also needs to support Trunk.

Reference material: Network-Trunk link

6. What is the eth interface of Huawei 5700 switch used for and how to use it

Huawei 5700 switch eth can be used as a management When using the eth port, the switch operating system is lost, but I can upload operating system files through the eth port, which has a similar function to the console port.

Huawei switches are developed from network bridges and belong to the second layer of OSI, that is, data link layer equipment. It addresses according to the MAC address and selects routing through the station table. The establishment and maintenance of the station table are automatically performed by CISCO switches.

Huawei has established multiple research institutes in the United States, Germany, Sweden, Russia, India, and Beijing, Shanghai, and Nanjing in China. Nearly half of its employees are engaged in the development of products and solutions.R&D work.

(6) What is the role of the eth module? Extended reading

Huawei is the world's leading telecommunications solution provider. We have dedicated employees and strong R&D capabilities, respond quickly to customer needs, provide end-to-end customized products, solutions and services, and strive to help customers succeed in business, and through our joint efforts, we continue to enrich people's communication and life.

Huawei products and solutions cover mobile (LTE/HSPA/WCDMA/EDGE/GPRS/GSM, CDMA2000 1xEV-DO/CDMA2000 1X, TD-SCDMA and WiMAX)

Core network (IMS, Mobile Softswitch, NGN), network (FTTx, xDSL, optical network, router and LAN Switch), telecommunications value-added services (IN, mobile data service, BOSS) and terminal (UMTS/CDMA) and other fields.

7. ETH-What is Ethereum

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Ethereum (English Ethereum) is an open source public blockchain with smart contract functions The platform provides a decentralized virtual machine (Ethereum Virtual Machine) through its dedicated cryptocurrency Ether to process peer-to-peer contracts. The concept of Ethereum was first inspired by Bitcoin by programmer Vitalik Buterin between 2013 and 2014 and is now 2.0. Ethereum 2.0 is also something that the entire currency circle is eagerly waiting for. In order to celebrate the birth of the genesis block of eth2.0 on December 1, ZB will officially support the exchange of ETH2.0 verification nodes at 17:00 on November 20, 2020 Hong Kong time, and invest its own ETH into verification node mining. And redeem QETH to obtain liquidity. Once you redeem it, you will participate in mining, and the benefits will be given back to users. The first 1,000 ETH can enjoy over-exchange for QETH at a ratio of 1:1.02. QETH has many advantages over ETH2.0: liquidity is guaranteed, users do not need to bear technical costs, the participation threshold does not require 32 ETH and is as low as 0.1ETH, nodes are maintained by the platform, and income is distributed based on ETH2.0.

8. The role of the router’s eth0 port

Generally speaking, the router’s ports are configurable and can be configured to anything. !
ETH0: Ethernet port 0, that’s all

9. What are eth0 and eth1 used for in linux configuration

It is a fiber optic Ethernet interface card. According to Ethernet communication protocol for signal transmission. Generally through optical cables and lightFiber optic Ethernet switch connection.

Eth0 and eth1 are used to distinguish network card names. Their meaning is the same as Windows Local Area Connection 1 and Local Area Connection 2.

The subnet card here is not a practical network interface, but it can appear in the system as a collective interface, such as eth0:1, eth1:2.

(9) What is the role of the eth module? Extended reading:

The Linux operating system is embedded with the TCP/IP protocol stack, and the protocol software has routing and forwarding functions. Routing and forwarding rely on installing multiple network cards in the host as a router.

When a certain network card receives a packet, the system kernel will query the routing table based on the destination IP address of the packet, then send the packet to another network card based on the query results, and finally send the packet through the network card. Bag. The host's process is the core function of the router.

The routing function is implemented by modifying Linux kernel parameters. The sysctl command is used to configure and display kernel parameters in the /proc/sys directory.

For security reasons, the Linux kernel prohibits packet routing and forwarding by default. In Linux systems, there are two methods to enable the forwarding function: temporary and permanent.

10. What is the ETH interface?

The ETH interface refers to the interface, which is currently the most widely used LAN communication method and is also a protocol. The Ethernet interface is the port for network data connection.
Each version of Ethernet has a maximum cable length limit (that is, the length without amplification). Signals within this range can propagate normally, and signals beyond this range will not be able to propagate.
To allow the construction of larger networks, repeaters can be used to connect multiple cables together. A repeater is a physical layer device that receives, amplifies, and retransmits signals in both directions.
(10) What is the role of the eth module? Extended reading
Several common Ethernet interface types.
1. SC fiber optic interface
SC fiber optic interface has been used in the 100Base-TX Ethernet era, so it was called 100Base-FX at that time (F is the abbreviation of fiber). However, due to the performance It is not more outstanding than twisted pair but the cost is higher, so it has not been popularized. Now the industry is vigorously promoting Gigabit network, and the SC optical fiber interface has regained attention.
2. RJ-45 interface
This interface is the most common network device interface we have now. It is commonly known as "crystal head" and the professional term is RJ-45 connector. It belongs to the twisted pair Ethernet interface type. . The RJ-45 plug can only be inserted in a fixed direction, and is equipped with a plastic spring that is stuck with the RJ-45 slot to prevent it from falling off.
3. FDDI interface
FDDI is one of the currently mature LAN technologies with the highest transmission rate and has a timing token protocol.It supports multiple topologies and the transmission media is optical fiber. Fiber Distributed Data Interface (FDDI) is a set of protocols developed by the American National Standards Institute (ANSI) for sending digital signals over optical cables.
Reference source: Network-Ethernet interface