一、服务器环境和交换机环境
1、服务器
ubuntu18 4.15.0-159-generic
2、交换机
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.170 (S5720 V200R010C00SPC600)
Copyright (C) 2000-2016 HUAWEI TECH CO., LTD
HUAWEI S5720S-28P-SI-AC Routing Switch uptime is 0 week, 1 day, 5 hours, 8 minutes
3、网卡绑定的作用
- 当一个网卡不够用的时候，可以使用两个网卡绑定在一起增加带宽
- 当一个网卡断的话，另一个网卡可以形成备份，增加链路冗余
- 主备模式只能做成链路备份，不能负载，负载需要服务器和交换机互相配合
4、bond 的七种模式
每种模式的特点可以参考（Linux----bond技术及mode模式详解_weixin_45726050的博客-CSDN博客）
这七种模式分别是：
802.3ad balance-alb balance-tlb broadcast active-backup balance-rr balance-xor
mode=0 round-robin轮询策略(Round-robin policy)
mode=1 active-backup主备策略(Active-backup policy)
mode=2 load balancing (xor)异或策略(XOR policy)
mode=3 fault-tolerance (broadcast)广播策略(Broadcast policy)
mode=4 lacp IEEE 802.3ad 动态链路聚合(IEEE 802.3ad Dynamic link aggregation) #我这边使用是这种模式
mode=5 transmit load balancing适配器传输负载均衡(Adaptive transmit load balancing)
mode=6 adaptive load balancing适配器负载均衡(Adaptive load balancing)
二、服务器配置
1、查看有没有bonding kernel module，一般ubuntu18，默认就有的。
| modinfo bonding | head -n 3
#安装ifenslave
apt-get install ifenslave
|
filename: /lib/modules/4.15.0-159-generic/kernel/drivers/net/bonding/bonding.ko
author: Thomas Davis, [email protected] and many others
description: Ethernet Channel Bonding Driver, v3.7.1
##加入bonding模块
echo "bonding" >>/etc/modules
2、网络配置
vim /etc/network/interfaces
| # interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eno1
iface eno1 inet manual
bond-master bond0
bond-primary eno1
bond-mode 4
auto eno2
iface eno2 inet manual
bond-master bond0
bond-primary eno2
bond-mode 4
auto bond0
iface bond0 inet static
address 192.168.10.113
netmask 255.255.255.0
gateway 192.168.10.254
slaves eno1 eno2
bond-mode 4
bond-miimon 100
bond-downdelay 200
bond-updelay 200
|
3、重启网卡
#/etc/init.d/networking restart
如果重启网卡报错，就重启机器
4、查看bonding状态
#cat /proc/net/bonding/bond0
| Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 200
Down Delay (ms): 200
802.3ad info
LACP rate: slow
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: ac:1f:6b:e1:d6:05
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 2
Actor Key: 9
Partner Key: 561
Partner Mac Address: e8:68:19:c9:7d:60
Slave Interface: eno2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: ac:1f:6b:e1:d6:05
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 0
details actor lacp pdu:
system priority: 65535
system mac address: ac:1f:6b:e1:d6:05
port key: 9
port priority: 255
port number: 1
port state: 61
details partner lacp pdu:
system priority: 32768
system mac address: e8:68:19:c9:7d:60
oper key: 561
port priority: 32768
port number: 2
port state: 61
Slave Interface: eno1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: ac:1f:6b:e1:d6:04
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 0
details actor lacp pdu:
system priority: 65535
system mac address: ac:1f:6b:e1:d6:05
port key: 9
port priority: 255
port number: 2
port state: 61
details partner lacp pdu:
system priority: 32768
system mac address: e8:68:19:c9:7d:60
oper key: 561
port priority: 32768
port number: 1
port state: 61
|
三、交换机配置
1、首先进入system-view 进入以太网端口视图
>system-view
#进入聚合口trunk2
interface Eth-Trunk2
#配置为接入模式
port link-type access
# 放行vlan，如果用的是默认的vlan1，那可以不需要执行
port default vlan ID
#模式
mode lacp
#流量分流算法模式，总共有6总，常用的是src-dst-ip
load-balance src-dst-ip
#配置之后可以 dis this 查看一下配置
display this
#
interface Eth-Trunk2
port link-type access
port default vlan 192
mode lacp
#
** 注意：
加入聚合之前请删除端口中的配置**
undo eth-trunk
undo link-type
2、配置聚合端口信息
# 进入g 1/0/19 端口
interface GigabitEthernet1/0/19
#** 加入trunk2**
eth-trunk 2
#跟上面一样进入另一个端口加入聚合
#进入g 2/0/2 端口
interface GigabitEthernet2/0/20
#加入trunk2
eth-trunk 2
查询： dis interface Eth-Trunk 查看所有聚合表
| display interface Eth-Trunk
Eth-Trunk2 current state : UP
Line protocol current state : UP
Description:
Switch Port, Link-type : access(configured),
PVID : 1, Hash arithmetic : According to SIP-XOR-DIP,Maximal BW: 2G, Current BW: 2G, The Maximum Frame Length is 9216
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is e868-19c9-7d60
Current system time: 2021-10-12 12:52:24
Last 300 seconds input rate 6984 bits/sec, 6 packets/sec
Last 300 seconds output rate 19608 bits/sec, 12 packets/sec
Input: 24351 packets, 2528598 bytes
Unicast: 23372, Multicast: 372
Broadcast: 607, Jumbo: 0
Discard: 0, Pause: 0
Frames: 0
Total Error: 0
CRC: 0, Giants: 0
Runts: 0, DropEvents: 0
Alignments: 0, Symbols: 0
Ignoreds: 0
Output: 39962 packets, 5490082 bytes
Unicast: 23702, Multicast: 10219
Broadcast: 6041, Jumbo: 0
Discard: 0, Pause: 0
Total Error: 0
Collisions: 0, Late Collisions: 0
Deferreds: 0
Input bandwidth utilization : 0%
Output bandwidth utilization : 0%
-----------------------------------------------------
PortName Status Weight
-----------------------------------------------------
GigabitEthernet0/0/20 UP 1
GigabitEthernet0/0/19 UP 1
-----------------------------------------------------
The Number of Ports in Trunk : 2
The Number of UP Ports in Trunk : 2
|
四、验证
验证的方式较为简单，两个网卡同时插上网线，并连接到交换机上，断掉其中任何一个，不影响使用。
