DSA
作者：互联网
DSA
来源 https://www.right.com.cn/forum/thread-5807504-1-1.html
教程 https://openwrt.org/docs/guide-user/network/dsa/dsa-mini-tutorial#multiple_networks_using_vlan_tagging
参考 https://openwrt.org/docs/guide-user/network/vlan/switch_configuration
参考 https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/layer2/configuration/guide/Cisco_Nexus_7000_Series_NX-OS_Layer_2_Switching_Configuration_Guide_Release_5-x_chapter4.html
新版openwrt很多固件上找不到交换机插件，不支持swconfig配置vlan，从网上找到一篇dsa配置dot1q网络的方法，可以参考一下,原链接有图，更直观
原链接：https://forum.openwrt.org/t/mini... etwork-config/96998 介绍 DSA 代表分布式交换机架构，是用于网络交换机的 Linux 内核子系统。它是 OpenWrt 的 swconfig 框架的上游替代品，许多新路由器使用 DSA 驱动程序而不是 swconfig 驱动程序。 在 DSA 中，每个交换机端口都是一个单独的 Linux 接口。这意味着ip/ifconfig命令将显示接口等lan1，lan2，wan等。 DSA 交换机端口可以用作独立接口（WAN 的通用解决方案），也可以使用 Linux 桥接接口进行桥接。在后一种情况下，交换机仍然能够在硬件级别路由流量，因此不会影响性能。 每个端口最多只能是一个网桥的一部分。 简单的端口桥接 在最简单的情况下，交换机端口使用 Linux 桥接接口进行桥接，OpenWrt 使用 IP 协议配置该接口。 在这种情况下，连接到桥接端口的所有设备都可以相互通信，也可以与路由器本身通信。
| Syntax | Member Port Is |
|---|---|
| lanx | untagged ~PVID |
| lanx:u | untagged |
| lanx:t | tagged |
| lanx:* | PVID untagged |
| lanx:u* | PVID untagged |
| lanx:t* | PVID tagged |
=================
mini-tutorial-for-dsa-network-config
see https://forum.openwrt.org/t/mini-tutorial-for-dsa-network-config/96998
Update from 2021-05-31:
- Option
ifnamewas renamed todevice - This tutorial is valid for 21.02-rc2 (or newer) and recent snapshots
Introduction
DSA stands for Distributed Switch Architecture and is Linux kernel subsystem for network switches. It's an upstream replacement for OpenWrt's swconfig framework and many new routers use DSA drivers instead of swconfig drivers.
In DSA each switch port is a separated Linux interface. It means ip / ifconfig command will show interfaces like lan1, lan2, wan, etc.
DSA switch ports can be used as standalone interfaces (common solution for WAN) or can be bridged using Linux bridge interface. In the later case switch will still be able to route traffic on the hardware level so it won't affect performance.
Each port can be part of maximum of one bridge only.
Simple ports bridging
In the simplest scenario switch ports are simply bridged using Linux bridge interface and OpenWrt configures that interface with an IP protocol.
In such case all devices connected to bridged ports can communicate each other and router itself.
Example:
01-device1086×393 32.1 KB
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
01-interface1086×643 37.6 KB
config interface 'lan'
option device 'br-lan'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
Multiple networks (using bridges)
A switch can be setup to group selected ports into separated networks by using multiple bridge interfaces. With separated firewall zones devices connected to different port groups won't be able to communicate each other.
Example:
02-device-home1086×393 30.7 KB
config device
option name 'br-home'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
config device
option name 'office'
option type 'bridge'
list ports 'lan3'
list ports 'lan4'
02-interface-office1086×643 37.7 KB
config interface 'home'
option device 'br-home'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
config interface 'office'
option device 'office'
option proto 'static'
option ipaddr '192.168.13.1'
option netmask '255.255.255.0'
Multiple networks (using VLANs)
Ports can also be separated (grouped) using single bridge with multiple VLANs. That requires assigning interfaces to correct software VLANs.
Example:
03-device1086×482 31.8 KB
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1'
list ports 'lan2'
config bridge-vlan
option device 'br-lan'
option vlan '2'
list ports 'lan3'
list ports 'lan4'
03-interface-home1086×643 38 KB
03-interface-office1086×643 38.2 KB
config interface 'home'
option device 'br-lan.1'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
config interface 'office'
option device 'br-lan.2'
option proto 'static'
option ipaddr '192.168.13.1'
option netmask '255.255.255.0'
VLAN tagged traffic
With proper bridge VLAN configuration it's also possible for selected port to use VLAN tagged traffic. It also requires assigning OpenWrt interface to the correct software VLAN.
Example:
Port lan4 uses tagged packets for VLAN 1 and has PVID 2.
04-device1086×484 33.7 KB
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4:t'
config bridge-vlan
option device 'br-lan'
option vlan '2'
list ports 'lan4:u*'
04-interface1086×643 39 KB
config interface 'lan'
option device 'br-lan.1'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
================== End
标签：option,list,br,device,config,ports,DSA 来源： https://www.cnblogs.com/lsgxeva/p/16414882.html