VLAN translation 功能

VLAN

功能

TRANSLATION

目录

1

．< /p>

Vlan

翻译简介

......... .................................................. .................................................. ........................................ 4

翻译（

VLAN Translation

）功能类型

........... .................................................. ........................................ 5

2.1 QOS

..................... .................................................. .................................................. ..................................... 5

2.1.1QOS

实现

vlan

替换 功能

.

............. .................................................. ................................................. 5

2.1.2QOS

实现

vlan< /p>

叠加功能

.

. .................................................. .................................................. ........... 6

2.2DOT1Q-TUNNEL

.

....................................... .................................................. .............................................. 6 < /p>

2.2.1FLAT

模式实现

vlan< /p>

替换

.

... .................................................. .................................................. ......... 6

2.2.2QINQ

模式实现

vlan

叠加

.< /p>

........................................ .................................................. .................... 7

替换功能

............ .................................................. .................................................. ...................................... 7

3.1VLAN

翻译

-QOS

案例

...................................... .................................................. ........................................ 8

3.2VLAN

翻译

-FLAT

案例

........................ .................................................. .................................................. .. 10

3.3FLAT

备注（对于二层交换机配置模板）

.

............... .................................................. .............................. 12

3.3FL AT

备注二（对于二层交换机单台配置模板）

.

.................................. ................................................. 14

4 VLAN

叠加功能

.

.............................. .................................................. .................................................. ................. 15

4.1

基于

QOSvlan

叠加功能

....... .................................................. .................................................. ............... 15

4.2

基于

Dot1q-tunnel vlan

叠加功能

.

.............................................. .................................................. ....... 17

4.3QINQ

备注（对于二层交换机 配置模板）

...................... .................................................. ...................... 19

5

特别案例

.

...................................... .................................................. .................................................. ..................... 21

5.1

通过

dot1q-tunnel

后网管交换机

< br> .............................................. .................................................. ......... 21

5.2

通过

dot1q-tunnel

的

QINQ

与

FLAT

结合

........ .................................................. ............................... 22

5.2< /p>

通过

dot1q-tunnel

的

vlan

定义以及支持的条目

.

................................. .............................................. 24

5.2switchport mode dot1q-translating- tunnel

特性

.

.............................................. ............................. 26

6

综合实验

.

...................................... .................................................. .................................................. ..................... 27

6.1

实验要求：

< br>.

................................... .................................................. .................................................. ......... 27

6.2

主要配置信息

.

.................................. .................................................. .................................................. ...... 28

6.2.1 S2226E

交换机配置

................ .................................................. .................................................. .. 28

6.2.2 S3928GXE

配置信息

.

.......................................... .................................................. ........................ 29

6.2.3 S3424C

配置

.

.............................................. .................................................. ................................. 29

6.2.4

路由器配置信息

... .................................................. .................................................. ..................... 30

6.3

实验结果

.

.................................... .................................................. .................................................. ............ 30

6.5

实验总结

.

.................................... .................................................. .................................................. ............ 31

7

总结

.< /p>

........................................ .................................................. .................................................. ........................... 31

1

．

Vlan

翻译简介

在当今

vlan

技术得到广泛运用 ，

但缺点每个网络内只有

4K

的数量< /p>

vlan

。

从而引出了

< br>vlan translation

（

vlan

翻译）的技术概念。被广大的运营商所青睐，

vlan

translation

能够将接入层

vlan

根据需求进行划

分，汇总成一个

vlanI D

进入运营商核心网络如图①。

图①：

VLANID:Y