你好，这里是网络技术联盟站。
Hello #xff0c; this is Cybertech Union Station.
一提到链路聚合，大家首先想到的是不是华为的eth-trunk技术，EtherChannel有听说过吗？
One refers to the connection polymer #xff0c; the first thought is whether it's eth-trunk technology & #xff0c; #xff1f; #xff1f;
没错！没听过的可能就是思科的技术，EtherChannel由思科开发，应用于交换机之间的多链路捆绑技术。
That's right #xff01; it's probably Cisco technology & #xff0c; Etherchannel developed by Cisco & #xff0c; multi-link binding technology applied between switches.
本文瑞哥就带大家走进EtherChannel技术，心动不如行动，让我们直接开始！
This is how Rico takes us into the Ethan Channel technology & #xff0c; less action than action & #xff0c; let's go straight to #xff01;
目录：
Directory & #xff1a;
文章目录
EtherChannel技术是由Kalpana公司在1990年代初期发明的。Kalpana公司在1994年被思科系统公司收购。在2000年，IEEE通过了802.3ad，这是EtherChannel的一个开放标准版本。
The Etherchannel technology was invented by Kalpana in the early 1990s. Kalpana was acquired by Cisco Systems in 1994. In 2000 & #xff0c; IEEE passed 802.3ad， this is an open-ended version of Etherchannel.
EtherChannel技术主要用于骨干网络，但也可以用于连接终端用户机器。使用EtherChannel有许多优点，其中最令人期待的方面可能是带宽。使用最多8个活动端口，总带宽可以达到800 Mbit/s，8 Gbit/s或80 Gbit/s，具体取决于端口速度。
Etherchannel technology is used mainly for bone network & #xff0c; but it can also be used to connect end-user machines. There are many advantages & #xff0c using Etherchannel; the most promising aspect of this may be bandwidth. Use up to eight active ports & #xff0c; total bandwidth can reach 800 Mbit/s， 8 Gbit/s or 80 Gbit/s， depending on port speed.
EtherChannel，中文名称叫做以太网通道，也被称为Link Aggregation Control Protocol (LACP)，是一种在计算机网络中使用的技术，它可以将两个网络交换机之间的多个物理链接合并成一个逻辑链接。这个逻辑链接提供了增加的带宽和冗余，以及改进的负载平衡。
Etherchannel， Chinese name & #xff0c; also known as Link Aggregation Control & #xff0c; a technology used in the computer network & #xff0c; it combines multiple physical links between two network switches into a logical link. This logical link provides additional bandwidth and redundancy & #xff0c; and improved load balance.
EtherChannel通过将交换机之间的两个或多个物理链接分组成一个逻辑链接来工作。这个逻辑链接被视为一个单一的实体，交换机将其视为一个链接。流量在逻辑链接中的物理链接上分布，提供了增加的带宽和改进的负载平衡。
Etherchannel works by forming a logical link between two or more physical links between switches. This logical link is seen as a single entity xff0c; the switch is seen as a link. The flow is distributed on the physical link in the logical link xff0c; it provides an increased bandwidth and improved load balance.
EtherChannel技术的原理我们其实只需要记住三点：
The principles of Etherchannel technology actually need only be kept in mind three points #xff1a.
2.1 物理链路绑定
EtherChannel技术通过将多个物理链路绑定在一起，形成一个逻辑链路。这个逻辑链路被视为单个高带宽的链路，可以提供更大的带宽和更可靠的连接。
Etherchannel technologies form a logical link by tying multiple physical links together & #xff0c; this logical link is seen as a single high-bandwidth link & #xff0c; it can provide greater bandwidth and more reliable connections.
2.2 负载均衡算法
当数据流经过EtherChannel时，负载均衡算法会将数据流分配到不同的物理链路上。这样可以充分利用所有链路的带宽，避免某个链路过载而导致性能下降。
& #xff0c when the data flow passes through Ethan Channel; the load equilibrium algorithm distributes the data stream to different physical links. This makes it possible to take full advantage of the bandwidth of all the links & #xff0c; avoids a link passing and leads to a loss of performance.
常见的负载均衡算法包括：
Common load equilibrium algorithms include xff1a;
- 基于源IP地址和目标IP地址的哈希算法：根据数据包的源IP地址和目标IP地址计算哈希值，并将数据包发送到相应的物理链路。
- 基于源MAC地址和目标MAC地址的哈希算法：根据数据包的源MAC地址和目标MAC地址计算哈希值，并将数据包发送到相应的物理链路。
- 基于源端口和目标端口的哈希算法：根据数据包的源端口和目标端口计算哈希值，并将数据包发送到相应的物理链路。
2.3 链路故障恢复
当某个物理链路发生故障时，EtherChannel技术可以自动检测到故障，并将受影响的流量切换到其他正常工作的链路上。这种链路故障恢复机制可以提高网络的可靠性和鲁棒性。
When a physical link fails & #xff0c; Etherchannel technology automatically detects a failure & #xff0c; and shifts the affected flow to other normal working links. This chain failure recovery mechanism increases network reliability and robustness.
要形成 EtherChannel（也称为端口聚合或端口捆绑），需要满足一些基本要求，包括：
Etherchannel（ also known as port aggregation or port binding xff09; xff0c; some basic requirements to be met xff0c; including xff1a;
-
同双工模式（Duplex Mode）：所有成员端口的双工模式必须相同，通常为全双工（Full Duplex）。
Same double work mode xff08; Duplex Mode） xff1a; all member ports must have the same double work mode xff0c; usually full double work xff08; Full Dublex）
-
同速度（Speed）：所有成员端口的速度必须相同，通常以千兆位每秒（Gigabit）或更高速度。
The same speed as xff08; Speed） xff1a; all member ports must be at the same speed xff0c; usually at xff08; Gigabit） or more.
-
相同的 VLAN 配置：所有成员端口应配置为相同的本征 VLAN 和允许的 VLAN。这是为了确保数据流可以在这些端口之间正确聚合。
The same VLAN configuration & #xff1a; all member ports should be configured for the same primary VLAN and permitted VLAN. This is to ensure that the data stream can be properly aggregated between these ports.
-
交换机端口模式相同：成员端口应配置为相同的交换机端口模式，通常是"access"（访问模式）或"trunk"（干道模式）。这确保了数据的正确传输和处理。
Exchange port mode xff1a; the member port should be configured as the same exchange port mode xff0c; usually 34; access#34; xff08; access mode xff09; or 34; Trunk#34; xff08; trunk mode ff09; this ensures the correct transmission and processing of data.
4.1 端口聚合协议 (PAgP)：
- PAgP 是思科的专有协议，用于形成 EtherChannel。
- PAgP 可以将最多 8 个物理链路合并为一个虚拟链路。
- 它提供了一种自动协商 EtherChannel 配置的方法，通过检测相邻交换机的支持情况来动态确定 EtherChannel 的配置。
- PAgP 运行在链路层，并用于思科设备之间的 EtherChannel 配置。
4.2 链路聚合控制协议 (LACP)：
- LACP 是一项 IEEE 标准，不限于特定厂商的设备，因此可以在多种厂商的交换机和路由器上使用。
- LACP 也可以将多个物理链路合并为一个虚拟链路。
- 它提供了一种标准化的方法来动态确定 EtherChannel 的配置，而不仅限于思科设备。
- LACP运行在链路层，并可用于跨不同厂商的设备之间的 EtherChannel 配置。
EtherChannel通过将交换机之间的两个或多个物理链接分组成一个逻辑链接来工作。这个逻辑链接被视为一个单一的实体，交换机将其视为一个链接。流量在逻辑链接中的物理链接上分布，提供了增加的带宽和改进的负载平3。
Etherchannel works by forming a logical link between two or more physical links between switches. This logical link is seen as a single entity xff0c; the switch is seen as a link. The flow is distributed on the physical link in the logical link xff0c; it provides additional bandwidth and improved load flat 3.
当你连接交换机的多个链接时，STP（Spanning Tree Protocol）会阻止最少冗余的链接。由于我们已经创建了EtherChannel，所有的链接（被分组为一个逻辑链接k）将被视为单个逻辑链接，因此不会有链接被阻止，同时它还为我们的网络提供了更高的带宽和冗余。
When you connect multiple links to the switch, xff0c; STP（ Spanning Free Protocol） prevents minimum redundant links. As we have created Esther Channel， all links xff08; is grouped into a logical link kxff09; will be considered a single logical link xff0c; there will be no link blocked xff0c; and it also provides a higher bandwidth and redundancy for our network.
EtherChannel提供了多种优点和好处，使其成为网络管理中的有用工具
Etherchannel offers multiple advantages and benefits & #xff0c; makes it a useful tool in network management
6.1 增加带宽
EtherChannel将多个物理链路合并为一个逻辑链路，从而增加了总可用带宽。这对于那些需要更高带宽的应用和环境非常有用，如视频流、大数据传输等。
Etherchannel combines several physical links into one logical link & #xff0c; thereby increasing the total bandwidth available. This is very useful for applications and environments requiring higher bandwidth & #xff0c; for example, video stream, big data transfer, etc.
6.2 冗余
通过使用多个物理链路，EtherChannel提供了冗余性。如果一个链路出现故障，其他链路可以继续提供连接，从而提高网络的可用性和鲁棒性。
Redundancy is provided through the use of multiple physical links & #xff0c; Etherchannel. If a link fails & #xff0c; other links can continue to provide connections & #xff0c; thus increasing the usability and prowess of the network.
6.3 负载均衡
EtherChannel可以均衡流量负载在多个物理链路之间，确保带宽的充分利用。这有助于避免网络拥塞，提供更好的性能和响应时间。
Etherchannel can balance traffic loads between multiple physical links & #xff0c; ensure the full use of bandwidth. This helps to avoid network congestion & #xff0c; and provides better performance and response time.
6.4 消除STP（生成树协议）的限制
传统的网络中，STP可能会阻止一些链路以避免环路，从而浪费了潜在的带宽。EtherChannel可以消除这些限制，使所有链路都处于活动状态，提供更多的可用带宽。
In the traditional network & #xff0c; STP may block some links to avoid the loop & #xff0c; thus waste potential bandwidth. Etherchannel can remove these restrictions & #xff0c; keep all links active & #xff0c; provide more bandwidth available.
6.5 故障隔离
当链路出现故障时，EtherChannel可以帮助网络管理员更容易地定位和隔离问题。它提供了更强大的故障管理和监控功能。
When the links fail & #xff0c; Etherchannel can help network administrators to locate and isolate problems more easily. It provides stronger trouble management and monitoring functions.
EtherChannel技术可以在多种情况下应用，以下是一些常见的使用场景：
Etherchannel technology can be applied in a variety of contexts & #xff0c; the following are some of the common use scenarios & #xff1a;
7.1 服务器聚合
在数据中心环境中，服务器通常需要大量的带宽来处理高密度的数据流量。通过使用EtherChannel技术，可以将多个物理链路绑定在一起，提供更高的带宽给服务器。这样可以确保服务器能够处理大量的并发请求，并提供快速响应。
In the data centre environment & #xff0c; servers usually need a lot of bandwidth to handle high-density data flows. By using the Ethan Channel technology & #xff0c; by tying multiple physical links together & #xff0c; by providing a higher bandwidth to the server. This ensures that the server is able to process a large number of requests & #xff0c; and by providing a rapid response.
7.2 网络冗余
为了提高网络的可靠性，可以将多个物理链路连接到不同的交换机上，并使用EtherChannel技术将它们绑定在一起。当其中一个交换机或链路发生故障时，流量可以自动切换到其他正常工作的链路上，从而确保网络的连通性和可用性。
To improve network reliability & #xff0c; to connect multiple physical links to different switches & #xff0c; and to bind them together using EtherChannel technology. & #xff0c when one of the switches or the link fails; flow can automatically switch to other normal working links & #xff0c; ensure network connectivity and usability.
7.3 高带宽要求
某些应用或业务场景对网络带宽有很高的要求。通过使用EtherChannel技术，可以将多个物理链路绑定在一起，提供更大的带宽给这些应用或业务。这样可以满足高带宽要求，并确保数据传输的效率和性能。
Some applications or business scenes are very demanding for network bandwidth. Through the use of Etherchannel technology & #xff0c; the ability to bind multiple physical links together & #xff0c; the provision of greater bandwidth for these applications or operations. This allows for high bandwidth requirements xff0c; and ensuring the efficiency and performance of data transmission.
EtherChannel是思科公司提出的一种将多个物理链路绑定在一起的技术，而华为eth-trunk是华为公司提供的类似功能的解决方案。它们在实现方式和特性上有一些区别：
Etherchannel is a technique proposed by Cisco to bind multiple physical links together & #xff0c, while Eth-trunk is a solution to similar functions that China provides to the company. They have some differences in the way and characteristics of realization & #xff1a;
8.1 实现方式
- EtherChannel：在思科设备上，EtherChannel是通过使用标准的IEEE 802.3ad协议来实现的。它需要设备之间进行协商和配置，以建立逻辑链路。
- 华为eth-trunk：华为设备上的eth-trunk是通过华为自有的Link Aggregation Control Protocol (LACP)来实现的。它也需要设备之间进行协商和配置，以建立逻辑链路。
8.2 支持范围
- EtherChannel：EtherChannel技术广泛应用于思科设备，包括交换机、路由器等。它可以在思科设备之间或与其他厂商设备之间建立EtherChannel。
- 华为eth-trunk：华为eth-trunk主要应用于华为设备，包括华为交换机、路由器等。它通常用于华为设备之间的链路绑定。
8.3 配置命令
- EtherChannel：在思科设备上，EtherChannel的配置需要使用一系列特定的命令，如和等。
- 华为eth-trunk：在华为设备上，eth-trunk的配置需要使用一系列特定的命令，如和等。
配置EtherChannel涉及到很多具体的步骤，这些步骤可能会因为你使用的设备和操作系统的不同而有所不同。
The configuration of Etherchannel involves many specific steps & #xff0c; these may vary depending on the equipment and operating systems you use.
-
确定要捆绑的物理端口：首先，你需要确定你想要捆绑在一起的物理端口。这些端口应该是相同类型和速度的。
determines the physical ports to be bound & #xff1a; first xff0c; you need to determine the physical ports that you want to bind together. These ports should be of the same type and speed.
-
创建EtherChannel：在你的设备上，你需要创建一个新的EtherChannel。这通常涉及到在命令行界面中输入一个特定的命令。
creates Esther Channel： on your device xff0c; you need to create a new Esther Channel. This usually involves entering a specific command in the command line interface.
-
将物理端口添加到EtherChannel：一旦你创建了EtherChannel，你就可以将你选择的物理端口添加到它上面。这通常涉及到在每个物理端口上输入一个特定的命令。
adds the physical port to Esther Channel： once you have created Ethan Channel，, you can add the physical port of your choice to it. This usually involves entering a specific command on each physical port.
-
配置EtherChannel的设置：最后，你需要配置EtherChannel的一些设置，比如负载平衡方法和是否使用LACP。
configures Esther Channel's settings： last & #xff0c; you need to configure some of Esther Channel's settings & #xff0c; e.g. load balancing methods and whether to use LACP.
以下是一个EtherChannel配置的例子：
Here's an example of Etherchannel's configuration & #xff1a;
在这个例子中，我们首先进入了配置模式，然后选择了F0/1和F0/2两个接口。我们将这两个接口添加到了编号为1的channel-group中，并设置了模式为active，这意味着我们使用了LACP。然后我们为这个EtherChannel设置了trunk模式。最后，我们将运行配置保存到了启动配置中。
In this example xff0c; we first went into configuration mode xff0c; then we selected the F0/1 and F0/2 interfaces. We added these two interfaces to Channel-group number 1 & #xff0c; and we set the mode to actually #xff0c; this means we used LACP. Then we set the Trunk mode for this Esther Channel. Finally xff0c; we saved the running configuration to start configuration.
这就是一个EtherChannel的配置例子。具体的配置步骤可能会因为你的设备和操作系统的不同而有所不同，所以在实际配置的时候应该查阅你的设备和操作系统的具体文档来获取详细的步骤和命令。
This is an example of an Etherchannel configuration. Specific configuration steps may vary depending on your equipment and operating system xff0c; therefore, when actually configured, you should look at your equipment and the specific files of the operating system to obtain detailed steps and commands.
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