CentOS7虚拟化绑定网卡以及划分不同vlan

原创于 2022-04-25 14:13:38 发布 · 2k 阅读

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本文详细介绍了如何在服务器上设置双网口链路聚合（bonding）和VLAN划分，包括配置bond0、创建桥接br0、设置VLAN、验证状态并连接虚拟机。适合网络管理员和系统运维人员参考。

实验条件：服务器物理机两个网口（eno4管理口---交换机access，eno5链路聚合以及虚拟机出口，可多个网口做聚合----交换机网口更trunk）

1 首先更改eno5配置同理,其他端口可同样操作（对应交换机为trunk,否则vlan之间无法通信）

vi /etc/sysconfig/network-scripts/ifcfg-eno5

TYPE=Ethernet
BOOTPROTO=none
NAME=eno5
DEVICE=eno5
ONBOOT=yes
MASTER=bond0
SLAVE=YES

2 创建master=bond0

vi /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0
TYPE=Bond
NAME=bond0
BONDING_MASTER=yes
BOOTPROTO=static
USERCTL=no
ONBOOT=yes
BONDING_OPTS="mode=6 miimon=100"
BRIDGE=br0

3 搭建桥br0

vi ifcfg-br0

TYPE=Bridge
DEVICE=br0
ONBOOT=yes
BOOTPROTO=static
NAME=br0

4 可查看bond状态

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: eno5
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eno5
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 6c:ae:8b:40:65:15
Slave queue ID: 0

5 至此链路绑定完成，创建不同vlan10 同理创建vlan12

cat ifcfg-br0.10

DEVICE="br0.10"
VLAN="yes"
ONBOOT="yes"
BOOTPROTO="none"
BRIDGE=brvlan-10


cat ifcfg-brvlan-10

YPE=bridge
BOOTPROTO=static
NAME=brvlan-10
DEVICE=brvlan-10
ONBOOT=yes
IPADDR=10.128.0.96
PREFIX=24
GATEWAY=10.128.0.1

6 重启网络，并查看状态

systemctl restart network
brctl show

显示正常
br0		8000.6cae8b406515	no		bond0
brvlan-10		8000.6cae8b406515	no		br0.10
brvlan-12		8000.6cae8b406515	no		br0.12
virbr0		8000.525400de92ad	yes		virbr0-nic

7 将虚机的网口挂载对应的vlan桥上

brctl addif brvlan-10 vnet0
brctl addif brvlan-12 vnet1
brctl show

#vnet0 为vlan10下的ip 10.128.0.96
#vnet1 为vlan12下的ip 10.128.2.10

bridge name	bridge id		STP enabled	interfaces
br0		8000.6cae8b406515	no		bond0
brvlan-10		8000.6cae8b406515	no		br0.10
							vnet0
brvlan-12		8000.6cae8b406515	no		br0.12
							vnet1
virbr0		8000.525400de92ad	yes		virbr0-nic

8 至此，环境搭建完毕,链路聚合，并且划分了不同的vlan