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  • Ubuntu 20.04 配置多网卡链路聚合

    Ubuntu 20.04 配置多网卡链路聚合

    多网卡IP配置

    1. 首先查看网卡信息
    root@it:~# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:7940/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff
    • 等会需要添加 eth1 和 eth2 IP信息
    1. 在 /etc/netplan/ 目录下的 00-installer-config.yaml （该文件每个人都会不一样）
    root@it:~# vim /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  version: 2
  ethernets:
    eth0:
      addresses:
        - 192.168.121.21/24
      gateway4: 192.168.121.2
      nameservers:
        addresses:
          - 8.8.8.8

    eth1:
      addresses:
        - 192.168.121.22/24
      gateway4: 192.168.121.2
      nameservers:
        addresses:
          - 114.114.114.114

    eth2:
      addresses:
        - 192.168.121.23/24
      gateway4: 192.168.121.2
      nameservers:
        addresses:
          - 114.114.144.144
    1. 加载配置
    root@it:~# netplan apply
root@it:~# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:7940/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.22/24 brd 192.168.121.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:794a/64 scope link 
       valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.23/24 brd 192.168.121.255 scope global eth2
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:7954/64 scope link tentative 
       valid_lft forever preferred_lft forever

    多网卡链路聚合配置

    1. 查看绑定的网卡信息
    root@it:~# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:7940/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:0c:29:2d:79:4a brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:0c:29:2d:79:54 brd ff:ff:ff:ff:ff:ff
    1. 在 /etc/netplan/ 目录下新建一个以 .yaml 结尾的文件
    root@it:~# cd /etc/netplan/
root@it:/etc/netplan# touch bond.yaml
    1. 编辑该文件
    root@it:/etc/netplan# vim bond.yaml 
network:
  version: 2
  ethernets:
    eth1:
      addresses: []         #绑定单网卡不需要写IP地址
      dhcp4: no
    eth2:
      addresses: []
      dhcp4: no

  bonds:
    bond0:
      addresses:
        - 192.168.121.100/24
      gateway4: 192.168.121.2
      nameservers:
        addresses:
          - 114.114.114.114
      interfaces:
        - eth1
        - eth2
      parameters:          #参数
        mode: balance-rr      #bond模式
    1. 加载配置
    root@it:/etc/netplan# netplan apply
root@it:/etc/netplan# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:2d:79:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.21/24 brd 192.168.121.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe2d:7940/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc fq_codel master bond0 state UP group default qlen 1000
    link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc fq_codel master bond0 state UP group default qlen 1000
    link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
5: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 3e:ba:29:6c:0d:e4 brd ff:ff:ff:ff:ff:ff
    inet 192.168.121.100/24 brd 192.168.121.255 scope global bond0
       valid_lft forever preferred_lft forever
    inet6 fe80::3cba:29ff:fe6c:de4/64 scope link 
       valid_lft forever preferred_lft forever
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  • 原文地址：https://www.cnblogs.com/itwangqiang/p/14308929.html
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