设置Ubuntu 18.04的bond4和RG-5750-LACP网络连接

Ubuntu 18.04 配置bond4 LACP

###系统环境：Ubuntu 18.04 x2 (电口x2 随便什么物理服务器都行，至少有两个业务网口)
###网络设备：RG-5750-28GT4 x2 锐捷交换机，有更高端的设备最好。
###网络线缆：光纤3米x2 ,网线x5，10G光模块x2

交换机部分：

###1.两台交换机配置堆叠
###2.堆叠配置完成后，创建两个 LACP接口 组。（如果没有两台交换机，用一台SW也是可以的）

	4F-5750-1
	
	switch virtual domain 110   #(1-255 默认100)  组合名称：100
	 switch 1 #(1-9默认 1)  当前物理设备 ID号 
	 switch 1 prioriy 110  #(1-255)  默认为 100 ,越小越优秀
	 switch 1 description 4F-5705-1-VSU-110-1-110
	
	vsl-prot
	port-member interface TenGigabitEthernet 0/31
	port-member interface TenGigabitEthernet 0/32
		
	
	#switch convert mode virtual   #切换单机模式或者 VSU
	Convert mode will backup and delete config file, and reload the switch. Are you sure to continue[yes/no]:y
	转换模式将备份和删除配置文件，并重新加载交换机。你确定要继续[yes/no]:y

————————————————————————————————————————————————————————————————————————

	
	4F-5750-2
	switch virtual domain 110   #(1-255 默认100)
	 switch 2 #(1-9默认 1)
	 switch 2 prioriy 120  #(1-255)
	 switch 2 description 4F-5705-1-VSU-110-2-120
	
	vsl-prot
	port-member interface TenGigabitEthernet 0/31
	port-member interface TenGigabitEthernet 0/32
		
	
	#switch convert mode virtual   #切换单机模式或者 VSU
	Convert mode will backup and delete config file, and reload the switch. Are you sure to continue[yes/no]:y
	转换模式将备份和删除配置文件，并重新加载交换机。你确定要继续[yes/no]:y

——————————————————————————————————————————————————————————————

交换机部分：

配置LACP 动态链路聚合：

	Aggregateport = AP = 链路聚合

	SwitchA# configure terminal
	SwitchA(config)# interface range GigabitEthernet 1/0/20 , 2/0/20
	SwitchA(config-if-range)# port-group 3 mode active

	interface range GigabitEthernet 1/0/21 , 2/0/21
	port-group 4 mode active
	exit
	interface Gig 1/0/20
	lacp short-timeout
	no shutdown
	interface Gig 2/0/20
	lacp short-timeout
	no shutdown
	interface Gig 1/0/21
	lacp short-timeout
	no shutdown
	interface Gig 2/0/21
	lacp short-timeout    
	no shutdown
	
	lacp short-timeout    # 默认 90秒检查 LACP，这里配置 LACP 3秒快速检查。

————————————————————————————————————————————

服务器配置部分：

1. 安装 ifenslave

	#fenslave为一种粘合和分离式的软件，可以将数据包有效的分配到bonding驱动
	apt install -y ifenslave

2.确定内核是否加载 bonding

	lsmod | grep bonding   
	modprode bonding  # 加入
	echo "bonding"  >>  /etc/modules   #添加 bonding 模块

3.配置bond4网卡文件

###注意 YAML 语法这里语法并不是很标准可以去网上找标准一点的，下面中文备注自己删除一下。
	root@ubuntu:~# cat /etc/netplan/01-netcfg.yaml
	network:
	    ethernets:
	            enp7s0: {}
	            enp8s0: {}
	    version: 2
	    renderer: networkd
	    bonds:
	            bond4:
	                   addresses: [192.168.0.61/24]
	                   gateway4: 192.168.0.254
	                   nameservers:
	                           addresses: [ 223.5.5.5 ]
	                   interfaces:
	                          - enp7s0
	                          - enp8s0
	                   parameters:
	                          mode: 802.3ad   # 模式 bond4  IEEE 802.3ad 链路聚合 LACP
	                          mii-monitor-interval: 100   #监测时间  100ms
	                          lacp-rate: fast
	                          transmit-hash-policy: layer3+4   # 这里 hash 算法选择 3+4 是为让流量平均分发，具体的需要去论坛上面看看。如果使用 layer2  ,可能达不到 聚合的带宽增加的效果。

4.查看 bond模式是否正常：

	root@ubuntu:~# cat /proc/net/bonding/bond6 
	Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
	Bonding Mode: IEEE 802.3ad Dynamic link aggregation
	Transmit Hash Policy: layer3+4 (1)
	MII Status: up
	MII Polling Interval (ms): 100
	Up Delay (ms): 0
	Down Delay (ms): 0
	
	802.3ad info
	LACP rate: fast
	Min links: 0
	Aggregator selection policy (ad_select): stable
	System priority: 65535
	System MAC address: c6:f0:56:6c:9a:b4
	Active Aggregator Info:
		Aggregator ID: 1
		Number of ports: 2
		Actor Key: 9
		Partner Key: 4
		Partner Mac Address: 80:05:88:f1:9a:26
	
	Slave Interface: enp8s0
	MII Status: up
	Speed: 1000 Mbps
	Duplex: full
	Link Failure Count: 4
	Permanent HW addr: 00:13:92:09:05:4d
	Slave queue ID: 0
	Aggregator ID: 1
	Actor Churn State: none
	Partner Churn State: none
	Actor Churned Count: 1
	Partner Churned Count: 3
	details actor lacp pdu:
	    system priority: 65535
	    system mac address: c6:f0:56:6c:9a:b4
	    port key: 9
	    port priority: 255
	    port number: 1
	    port state: 63
	details partner lacp pdu:
	    system priority: 4096
	    system mac address: 80:05:88:f1:9a:26
	    oper key: 4
	    port priority: 32768
	    port number: 53
	    port state: 63
	
	Slave Interface: enp7s0
	MII Status: up
	Speed: 1000 Mbps
	Duplex: full
	Link Failure Count: 3
	Permanent HW addr: 00:13:92:09:05:4c
	Slave queue ID: 0
	Aggregator ID: 1
	Actor Churn State: none
	Partner Churn State: none
	Actor Churned Count: 3
	Partner Churned Count: 3
	details actor lacp pdu:
	    system priority: 65535
	    system mac address: c6:f0:56:6c:9a:b4
	    port key: 9
	    port priority: 255
	    port number: 2
	    port state: 63
	details partner lacp pdu:
	    system priority: 4096
	    system mac address: 80:05:88:f1:9a:26
	    oper key: 4
	    port priority: 32768
	    port number: 21
	    port state: 63
	root@ubuntu:~# 

5.查看服务器bond4接口速率是否正确：

	root@ubuntu:~# ethtool bond4
	Settings for bond4:
		Supported ports: [ ]
		Supported link modes:   Not reported
		Supported pause frame use: No
		Supports auto-negotiation: No
		Supported FEC modes: Not reported
		Advertised link modes:  Not reported
		Advertised pause frame use: No
		Advertised auto-negotiation: No
		Advertised FEC modes: Not reported
		**Speed: 2000Mb/s**
		**Duplex: Full**
		Port: Other
		PHYAD: 0
		Transceiver: internal
		Auto-negotiation: off
		Link detected: yes

6.使用 iperf 工具测试：

	iperf -s -p 1234 -i 1 
	iperf -c 192.168.0.61 -p 1234 -i 1 -P 4 -t 50
	speedometer -tx bond4 -rx bond4    # apt install -y speedometer  网卡流量图形化监控工具。
	#带宽跑起来后拔掉网线测试，查看链路聚合切换时间大概几秒钟，是否符合要求，两个接口都需要进行插拔测试，以此来验证 bond4 是否可以正常使用。

——————————————————————————————————————————
##其他大佬的配置方式

	以下是bond模式为mode4步骤：
	在/etc/netplan下面的文件的.yaml文件下修改bond的参数
	
	network:
	    ethernets:
	            enp1s0f0:
	                    addresses: [192.168.1.2/27]
	                    gateway4: 192.168.1.1
	            enp130s0f0: {}
	            enp130s0f1: {}
	    version: 2
	    renderer: networkd
	    bonds:
	            bond0:
	                   addresses: [10.1.110.14/24]
	                   interfaces:
	                          - enp130s0f0
	                          - enp130s0f1
	                   parameters:
	                          mode: 802.3ad   #模式为mode4
	                          mii-monitor-interval:
	                           lacp-rate: fast
	                           transmit-hash-policy: layer2
	
	
	network:
	    bonds:
	        bond0:
	            addresses:
	            - 192.168.123.101/24
	            gateway4: 192.168.123.1
	            interfaces:
	            - enp74s0f0
	            - enp74s0f1
	            nameservers:
	                addresses:
	                - 223.5.5.5
	            parameters:
	                mode: balance-alb
	    ethernets:
	        enp74s0f0: {}
	        enp74s0f1: {}
	    version: 2
	————————————————
	版权声明：本文为****博主「TimeK」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
	原文链接：https://blog.****.net/a1561386524/article/details/106681394/

##参考连接：
https://blog.51cto.com/alanwu/1095566
https://www.cnblogs.com/kaishirenshi/p/10245228.html
https://halysl.github.io/2020/01/08/Linux-bond-%E9%85%8D%E7%BD%AE/
https://help.ubuntu.com/community/UbuntuBonding/