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sources/tech/20230907 How to Configure VLAN Tagging Over Bonding on RHEL.md
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[#]: subject: "How to Configure VLAN Tagging Over Bonding on RHEL"
[#]: via: "https://www.2daygeek.com/configure-vlan-tagging-over-network-bonding-rhel/"
[#]: author: "Jayabal Thiyagarajan https://www.2daygeek.com/author/jayabal/"
[#]: collector: "lujun9972/lctt-scripts-1693450080"
[#]: translator: "geekpi"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
How to Configure VLAN Tagging Over Bonding on RHEL
======
In Linux, you can create advanced network setups such as Network Bonding or NIC teaming, VLAN tagging, and bridging based on your needs. These advanced features allow for increased network connectivity efficiency and reliability.
You can create VLAN interfaces on top of another interface, such as Ethernet, bond, team, or bridge devices.
In this article, we will learn how to configure VLAN tagging over Network Bonding in RHEL system, which allows traffics from different networks to share common physical links.
### Prerequisites for tagging VLAN over Bonding:
* The Network team need to enable LACP (802.3ad) on the Network switch ports to aggregate the links.
* The Network team need to configure network port as a trunk port, which enables more than one VLAN to be added to the same port. Also, get the VLAN ID from them in order to configure at OS level.
* A Linux system should have two interfaces.
* If it’s a physical server, we recommend configuring bonding between the On-Board and PCI interfaces to avoid a single point of failure on the network card on the host side.
#### Bonding Kernel Module
Check if the bonding module is already loaded on your Linux system using the **lsmod command**.
```
lsmod | grep -i bonding
bonding 12451 0
```
It would have loaded by default. Otherwise, load it using the **modprobe command**.
```
modprobe bonding
```
#### VLAN tagging Kernel Module
VLAN tagging (802.1q) is a kernel module that allows us to assign multiple IPs from different VLAN on the same Ethernet card (NIC) on Linux servers. Check if the VLAN module is already loaded on your Linux system using the lsmod command.
```
lsmod | grep 8021q
8021q 33080 0
garp 14384 1 8021q
mrp 18542 1 8021q
```
It would have loaded by default. Otherwise, load it using the modprobe command.
```
modprobe 8021q
```
### 1) LACP Bonding Configuration
We will be configuring LACP (Mode 4 – 802.3ad) based bonding for link aggregation, which provides increased bandwidth for bonding interface by combining two interfaces named **em1** and **p7p1**.
#### 1a) Creating Bond Interface
Create a bond interface file **`'ifcfg-bond0'`** under the directory **`'/etc/sysconfig/network-scripts/'`**.
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0
TYPE=Bond
DEVICE=bond0
NAME=bond0
BONDING_MASTER=yes
BOOTPROTO=none
ONBOOT=yes
BONDING_OPTS="mode=4 miimon=100 lacp_rate=1"
NM_CONTROLLED=no
```
#### 1b) Configuring First Slave Interface
Configure the first slave interface **`'em1'`** that you want to bring into bonding. Please use the correct interface name as per your environment.
```
vi /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
BOOTPROTO=none
DEVICE=em1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
```
#### 1c) Configuring Second Slave Interface
Configure the second slave interface **`'p7p1'`** that you want to bring into bonding. Please use the correct interface name as per your environment.
```
vi /etc/sysconfig/network-scripts/ifcfg-p7p1
TYPE=Ethernet
BOOTPROTO=none
DEVICE=p7p1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
```
#### Restarting network services
Restart the network services to enable the bonding interface or bring them up using ifup command.
```
systemctl restart network
```
### 2) VLAN tagging over Bonding Interface
LACP Bonding configuration has been completed and all interfaces are up and running now. Let’s configure the VLAN tagging over bonding interface by following the below procedures.
As discussed in the prerequisites, following are the VLANs which is mapped to the respective Ethernet Card port (em1 & p7p1) and Network switch port.
* VLAN ID (221), VLAN N/W = 192.168.10.0/24
* VLAN ID (331), VLAN N/W = 192.168.20.0/24
#### 2a) Configuring VLAN 221 to Bond0
Create tagged interface file for VLAN id 221 as **`"/etc/sysconfig/network-scripts/ifcfg-bond0.221"`** and add the following contents.
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0.221
DEVICE=bond0.221
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.10.100
NETMASK=255.255.255.0
GATEWAY=192.168.10.1
VLAN=yes
NM_CONTROLLED=no
```
#### 2b) Configuring VLAN 331 to Bond0
Create tagged interface file for VLAN id 331 as **`"/etc/sysconfig/network-scripts/ifcfg-bond0.331"`** and add the following contents.
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0.331
DEVICE=bond0.331
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.20.100
NETMASK=255.255.255.0
GATEWAY=192.168.20.1
VLAN=yes
NM_CONTROLLED=no
```
#### Restarting network services
Restart the network services to enable the bonding interface or bring them up using ifup command.
```
systemctl restart network
```
### Verify VLAN Tagging Configuration
Finally verify whether the VLAN tagged interface are configured and up & running using the **[ip command][1]**.
Yes, I could see **`'bondo.221@bond0'`** and **`'bon0.331@bond0'`** with two different IPs and was able to access the system via ssh without any problems. So, VLAN tagging works as expected.
![][2]
##### Conclusion
Congratulations, you have learned how to configure VLAN tagging over LACP bonding on a RHEL system, which listens for two VLANs. VLAN tagging is not limited to two VLANs, multiple VLANs are supported, which you can add according to the network configuration of that VLAN.
--------------------------------------------------------------------------------
via: https://www.2daygeek.com/configure-vlan-tagging-over-network-bonding-rhel/
作者：[Jayabal Thiyagarajan][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.2daygeek.com/author/jayabal/
[b]: https://github.com/lujun9972
[1]: https://www.2daygeek.com/linux-ip-command-configure-network-interface/
[2]: https://www.2daygeek.com/wp-content/uploads/2023/09/configure-vlan-tagging-over-bonding-rhel-1024x395.jpg

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@ -0,0 +1,200 @@
[#]: subject: "How to Configure VLAN Tagging Over Bonding on RHEL"
[#]: via: "https://www.2daygeek.com/configure-vlan-tagging-over-network-bonding-rhel/"
[#]: author: "Jayabal Thiyagarajan https://www.2daygeek.com/author/jayabal/"
[#]: collector: "lujun9972/lctt-scripts-1693450080"
[#]: translator: "geekpi"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
如何在 RHEL 上通过绑定配置 VLAN 标记
======
在 Linux 中，你可以根据自己的需要创建高级网络设置，如网络绑定（Network Bonding）或网卡组队（NIC teaming）、VLAN 标记和桥接。这些高级功能可以提高网络连接的效率和可靠性。
你可以在以太网、绑定、组队或桥接设备等其他接口上创建 VLAN 接口。
在本文中，我们将学习如何在 RHEL 系统中通过网络绑定配置 VLAN 标记，它允许来自不同网络的流量共享共同的物理链接。
### 通过绑定对 VLAN 进行标记的先决条件：
* 网络组队需要在网络交换机端口上启用 LACP (802.3ad)，以聚合链路。
* 网络组队需要将网络端口配置为中继端口，这样可以在同一端口上添加多个 VLAN。此外，还要从他们那里获取 VLAN ID，以便在操作系统层面进行配置。
* Linux 系统应该有两个接口。
* 如果是物理服务器，我们建议在板载接口和 PCI 接口之间配置绑定，以避免主机端的网卡出现单点故障。
#### 绑定内核模块
使用 **lsmod 命令**检查 Linux 系统是否已加载绑定模块。
```
lsmod | grep -i bonding
bonding 12451 0
```
默认情况下已加载。否则，请使用 **modprobe** 命令加载它。
```
modprobe bonding
```
### 1) LACP 绑定配置
我们将配置基于 LACP（Mode 4 – 802.3ad）的链路聚合绑定，通过组合名为 **em1** 和 **p7p1** 的两个接口，为绑定接口提供更大的带宽。
#### 1a) 创建 Bond 接口
在目录 **`/etc/sysconfig/network-scripts/`** 下创建 bond 接口文件 **`ifcfg-bond0`**。
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0
TYPE=Bond
DEVICE=bond0
NAME=bond0
BONDING_MASTER=yes
BOOTPROTO=none
ONBOOT=yes
BONDING_OPTS="mode=4 miimon=100 lacp_rate=1"
NM_CONTROLLED=no
```
#### 1b) 配置第一个从接口
配置您想要进行绑定的第一个从属接口 **`em1`**。 请根据您的环境使用正确的接口名称。
```
vi /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
BOOTPROTO=none
DEVICE=em1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
```
#### 1c) 配置第二个从接口
配置您想要进行绑定的第二个从接口 **`p7p1`**。 请根据您的环境使用正确的接口名称。
```
vi /etc/sysconfig/network-scripts/ifcfg-p7p1
TYPE=Ethernet
BOOTPROTO=none
DEVICE=p7p1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
```
#### 重启网络服务
重启网络服务以启用绑定接口或使用 ifup 命令启动它们。
```
systemctl restart network
```
### 2) 通过绑定接口进行 VLAN 标记
LACP Bonding 配置已完成，所有接口现已启动并运行。让我们按照以下步骤配置绑定接口上的 VLAN 标记。
正如先决条件中所讨论的，以下是映射到相应以太网卡端口（em1 和 p7p1）和网络交换机端口的 VLAN。
* VLAN ID (221), VLAN N/W = 192.168.10.0/24
* VLAN ID (331), VLAN N/W = 192.168.20.0/24
#### 2a) 将 VLAN 221 配置到 Bond0
为 VLAN id 221 创建标记接口文件 **`/etc/sysconfig/network-scripts/ifcfg-bond0.221`** 并添加以下内容。
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0.221
DEVICE=bond0.221
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.10.100
NETMASK=255.255.255.0
GATEWAY=192.168.10.1
VLAN=yes
NM_CONTROLLED=no
```
#### 2b) 将 VLAN 331 配置到 Bond0
为 VLAN id 331 创建标记接口文件 **`/etc/sysconfig/network-scripts/ifcfg-bond0.331`** 并添加以下内容。
```
vi /etc/sysconfig/network-scripts/ifcfg-bond0.331
DEVICE=bond0.331
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.20.100
NETMASK=255.255.255.0
GATEWAY=192.168.20.1
VLAN=yes
NM_CONTROLLED=no
```
#### 重启网络服务
重启网络服务以启用绑定接口或使用 ifup 命令启动它们。
```
systemctl restart network
```
### 验证 VLAN 标记配置
最后使用 **[ip 命令][1]**验证 VLAN 标记接口是否已配置并启动和运行。
是的，我可以看到 **`bondo.221@bond0`** 和 **`bon0.331@bond0`** 有两个不同的 IP，并且能够通过 ssh 访问系统，没有任何问题。因此，VLAN 标记按预期工作。
![][2]
##### 结论
恭喜，您已经了解了如何在 RHEL 系统上通过 LACP 绑定配置 VLAN 标记，该系统监听两个 VLAN。VLAN 标记不限于两个 VLAN，支持多个 VLAN，您可以根据该 VLAN 的网络配置添加 VLAN 标记。
--------------------------------------------------------------------------------
via: https://www.2daygeek.com/configure-vlan-tagging-over-network-bonding-rhel/
作者：[Jayabal Thiyagarajan][a]
选题：[lujun9972][b]
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.2daygeek.com/author/jayabal/
[b]: https://github.com/lujun9972
[1]: https://www.2daygeek.com/linux-ip-command-configure-network-interface/
[2]: https://www.2daygeek.com/wp-content/uploads/2023/09/configure-vlan-tagging-over-bonding-rhel-1024x395.jpg