centos7 bond 端口聚合

事先需要准备好网络yum源，保证服务器可正常上网
关闭防火墙，关闭selinux

本次实验虚拟机环境下模拟，网卡为nat模式，dhcp分配ip，现添加两张网卡，如图

image.png

登录服务器后，由于是后添加的网卡，发现/etc/sysconfig/network-scripts下没有新加网卡的配置文件，然后使用以下命令

nmtui

把有线连接 image.png
改为对应网卡改为对应网卡名字 image.png
然后

cd /etc/sysconfig/network-scripts/

然后修改ifcfg-ens37,ifcfg-ens38配置文件（相当于末尾追加MASTER=bond0 SLAVE=yes，把BOOTPROTO改为none），如下

[root@localhost network-scripts]# cat ifcfg-ens37
HWADDR=00:0C:29:B2:F3:A9
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens37
UUID=f69a315d-2735-4489-b99e-7153f016e7b2
ONBOOT=yes
MASTER=bond0 
SLAVE=yes 
[root@localhost network-scripts]# cat ifcfg-ens38
HWADDR=00:0C:29:B2:F3:B3
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens38
UUID=3e20bf34-6f74-34ff-b702-7f0e74ed34bc
ONBOOT=yes
AUTOCONNECT_PRIORITY=-999
MASTER=bond0
SLAVE=yes

然后新加一个bond配置文件，这里选择mode 6，无需配置交换机

[root@localhost network-scripts]# cat ifcfg-bond0 
TYPE=Bond
BOOTPROTO=dhcp
ONBOOT=yes
DEVICE=bond0
BONDING_MASTER=yes
BONDING_OPTS="mode=6 miimon=100"

然后重启网络

systemctl restart network

然后使用nmtui发现

image.png

[root@localhost network-scripts]# lsmod | grep bonding
bonding               152979  0 
[root@localhost network-scripts]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: adaptive load balancing
Primary Slave: None
Currently Active Slave: ens37
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: ens37
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:0c:29:b2:f3:a9
Slave queue ID: 0

Slave Interface: ens38
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:0c:29:b2:f3:b3
Slave queue ID: 0
[root@localhost network-scripts]# ethtool bond0
Settings for bond0:
    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