目  录

1 VLAN映射配置

1.1 VLAN映射简介

1.1.1 1:1 VLAN映射的应用

1.1.2 VLAN映射的基本概念

1.1.3 VLAN映射实现方式

1.2 配置1:1 VLAN映射

1.3 VLAN映射典型配置举例

1.3.1 1:1 VLAN映射配置举例

1 VLAN映射配置

1.1  VLAN映射简介

VLAN映射（VLAN Mapping）功能可以修改报文携带的VLAN Tag，通过执行1:1 VLAN映射，将报文携带VLAN Tag中的VLAN ID修改为另一个VLAN ID。

下面将详细介绍1:1映射关系的应用以及工作原理。

1.1.1  1:1 VLAN映射的应用

图1-1 1:1 VLAN映射应用示意图

如图1-1所示，是1:1 VLAN映射应用的组网环境，其中每个家庭用户的不同业务（PC、IPTV和VoIP）分别采用不同的VLAN进行发送，为了区分不同的家庭用户，需要在用户接入交换机处将不同家庭用户的相同业务采用不同的VLAN进行发送，即进行1:1 VLAN映射。

1.1.2  VLAN映射的基本概念

为了更好的理解后面的配置过程，此处定义几个概念：

l              上行数据流：从家庭用户网络发往汇聚层网络的数据流、或者从用户网络发往SP网络的数据流，都称之为上行数据流。

l              下行数据流：从汇聚层网络发往家庭用户的数据流、或者从SP网络发往用户网络的数据流，都称之为下行数据流。

l              上行端口：发送上行数据流、接收下行数据流的端口称为上行端口。

l              下行端口：发送下行数据流、接收上行数据流的端口称为下行端口。

l              上行策略：负责上行数据流VLAN映射规则的QoS策略。

l              下行策略：负责下行数据流VLAN映射规则的QoS策略。

1.1.3  VLAN映射实现方式

通过在下行端口应用不同的策略来实现1:1 VLAN映射

l              对于上行数据流，通过在下行端口上应用上行策略，将原来的CVLAN映射到SVLAN。

l              对于下行数据流，通过在下行端口上应用下行策略，将报文的SVLAN修改为原来的CVLAN。

1.2  配置1:1 VLAN映射

在图1-1所示的用户接入交换机上需要进行1:1 VLAN映射配置，以便将不同用户的不同业务用不同的VLAN进行隔离。

1. 配置准备

需要事先规划好CVLAN和SVLAN的映射关系。

2. 配置1:1 VLAN映射

表1-1 配置1:1 VLAN映射

表1-2 配置上行策略

表1-3 配置下行策略

1.3  VLAN映射典型配置举例

1.3.1  1:1 VLAN映射配置举例

1. 组网需求

每个家庭用户的不同业务分别采用不同的VLAN进行发送，在用户接入交换机处将不同家庭用户的相同业务采用不同的VLAN进行发送，使不同家庭的相同业务报文之间要进行隔离，不会产生混淆。

2. 组网图

图1-2 1:1 VLAN映射配置组网图

3. 配置步骤

(1)        配置Device A

# 创建CVLAN和SVLAN。

<DeviceA> system-view

[DeviceA] vlan 2 to 3

[DeviceA] vlan 101 to 102

[DeviceA] vlan 201 to 202

[DeviceA] vlan 301 to 302

# 配置上行策略，将不同用户的不同业务CVLAN映射到不同的SVLAN。

[DeviceA] traffic classifier c1

[DeviceA-classifier-c1] if-match customer-vlan-id 1

[DeviceA-classifier-c1] traffic classifier c2

[DeviceA-classifier-c2] if-match customer-vlan-id 2

[DeviceA-classifier-c2] traffic classifier c3

[DeviceA-classifier-c3] if-match customer-vlan-id 3

[DeviceA-classifier-c3] quit

[DeviceA] traffic behavior b1

[DeviceA-behavior-b1] remark service-vlan-id 101

[DeviceA-behavior-b1] traffic behavior b2

[DeviceA-behavior-b2] remark service-vlan-id 201

[DeviceA-behavior-b2] traffic behavior b3

[DeviceA-behavior-b3] remark service-vlan-id 301

[DeviceA-behavior-b3] traffic behavior b4

[DeviceA-behavior-b4] remark service-vlan-id 102

[DeviceA-behavior-b4] traffic behavior b5

[DeviceA-behavior-b5] remark service-vlan-id 202

[DeviceA-behavior-b5] traffic behavior b6

[DeviceA-behavior-b6] remark service-vlan-id 302

[DeviceA-behavior-b6] quit

[DeviceA] qos policy p1

[DeviceA-policy-p1] classifier c1 behavior b1

[DeviceA-policy-p1] classifier c2 behavior b2

[DeviceA-policy-p1] classifier c3 behavior b3

[DeviceA-policy-p1] quit

[DeviceA] qos policy p2

[DeviceA-policy-p2] classifier c1 behavior b4

[DeviceA-policy-p2] classifier c2 behavior b5

[DeviceA-policy-p2] classifier c3 behavior b6

[DeviceA-policy-p2] quit

# 配置下行策略，将SVLAN映射回原来的CVLAN。

[DeviceA] traffic classifier c11

[DeviceA-classifier-c11] if-match service-vlan-id 101

[DeviceA-classifier-c11] traffic classifier c22

[DeviceA-classifier-c22] if-match service-vlan-id 201

[DeviceA-classifier-c22] traffic classifier c33

[DeviceA-classifier-c33] if-match service-vlan-id 301

[DeviceA-classifier-c33] traffic classifier c44

[DeviceA-classifier-c44] if-match service-vlan-id 102

[DeviceA-classifier-c44] traffic classifier c55

[DeviceA-classifier-c55] if-match service-vlan-id 202

[DeviceA-classifier-c55] traffic classifier c66

[DeviceA-classifier-c66] if-match service-vlan-id 302

[DeviceA-classifier-c66] quit

[DeviceA] traffic behavior b11

[DeviceA-behavior-b11] remark customer-vlan-id 1

[DeviceA-behavior-b11] traffic behavior b22

[DeviceA-behavior-b22] remark customer-vlan-id 2

[DeviceA-behavior-b22] traffic behavior b33

[DeviceA-behavior-b33] remark customer-vlan-id 3

[DeviceA-behavior-b33] quit

[DeviceA] qos policy p11

[DeviceA-policy-p11] classifier c11 behavior b11

[DeviceA-policy-p11] classifier c22 behavior b22

[DeviceA-policy-p11] classifier c33 behavior b33

[DeviceA-policy-p11] quit

[DeviceA] qos policy p22

[DeviceA-policy-p22] classifier c44 behavior b11

[DeviceA-policy-p22] classifier c55 behavior b22

[DeviceA-policy-p22] classifier c66 behavior b33

[DeviceA-policy-p22] quit

# 配置端口Olt1/0/1允许CVLAN和SVLAN的报文通过。

[DeviceA] interface olt 1/0/1

[DeviceA-Olt1/0/1] port hybrid vlan 1 2 3 101 201 301 tegged

# 开启端口Olt1/0/1的基本QinQ功能。

[DeviceA-Olt1/0/1] qinq enable

# 在端口Olt1/0/1的入方向应用上行策略p1。

[DeviceA-Olt1/0/1] qos apply policy p1 inbound

# 在端口Olt1/0/1的出方向应用下行策略p11。

[DeviceA-Olt1/0/1] qos apply policy p11 outbound

[DeviceA-Olt1/0/1] quit

# 配置端口Olt1/0/2允许CVLAN和SVLAN的报文通过。

[DeviceA] interface olt1 1/0/2

[DeviceA-Olt1/0/2] port hybrid vlan 1 2 3 102 202 302 tegged

# 开启端口Olt1/0/2的基本QinQ功能。

[DeviceA-Olt1/0/2] qinq enable

# 在端口Olt1/0/2的入方向应用上行策略p2。

[DeviceA-Olt1/0/2] qos apply policy p2 inbound

# 在端口Olt1/0/2的出方向应用下行策略p22。

[DeviceA-Olt1/0/2] qos apply policy p22 outbound

[DeviceA-Olt1/0/2] quit

# 配置端口GigabitEthernet1/1/1允许SVLAN的报文通过。

[DeviceA] interface gigabitethernet 1/1/1

[DeviceA-GigabitEthernet1/1/1] port link-type trunk

[DeviceA-GigabitEthernet1/1/1] port trunk permit vlan 101 201 301 102 202 302

(2)        配置OLT B

# 创建CVLAN和SVLAN。

<DeviceB> system-view

[DeviceB] vlan 2 to 3

[DeviceB] vlan 111 to 112

[DeviceB] vlan 211 to 212

[DeviceB] vlan 311 to 312

# 配置上行策略，将不同用户的不同业务CVLAN映射到不同的SVLAN。

[DeviceB] traffic classifier c1

[DeviceB-classifier-c1] if-match customer-vlan-id 1

[DeviceB-classifier-c1] traffic classifier c2

[DeviceB-classifier-c2] if-match customer-vlan-id 2

[DeviceB-classifier-c2] traffic classifier c3

[DeviceB-classifier-c3] if-match customer-vlan-id 3

[DeviceB-classifier-c3] quit

[DeviceB] traffic behavior b1

[DeviceB-behavior-b1] remark service-vlan-id 111

[DeviceB-behavior-b1] traffic behavior b2

[DeviceB-behavior-b2] remark service-vlan-id 211

[DeviceB-behavior-b2] traffic behavior b3

[DeviceB-behavior-b3] remark service-vlan-id 311

[DeviceB-behavior-b3] traffic behavior b4

[DeviceB-behavior-b4] remark service-vlan-id 112

[DeviceB-behavior-b4] traffic behavior b5

[DeviceB-behavior-b5] remark service-vlan-id 212

[DeviceB-behavior-b5] traffic behavior b6

[DeviceB-behavior-b6] remark service-vlan-id 312

[DeviceB-behavior-b6] quit

[DeviceB] qos policy p1

[DeviceB-policy-p1] classifier c1 behavior b1

[DeviceB-policy-p1] classifier c2 behavior b2

[DeviceB-policy-p1] classifier c3 behavior b3

[DeviceB-policy-p1] quit

[DeviceB] qos policy p2

[DeviceB-policy-p2] classifier c1 behavior b4

[DeviceB-policy-p2] classifier c2 behavior b5

[DeviceB-policy-p2] classifier c3 behavior b6

[DeviceB-policy-p2] quit

# 配置下行策略，将SVLAN映射回原来的CVLAN。

[DeviceB] traffic classifier c11

[DeviceB-classifier-c11] if-match service-vlan-id 111

[DeviceB-classifier-c11] traffic classifier c22

[DeviceB-classifier-c22] if-match service-vlan-id 211

[DeviceB-classifier-c22] traffic classifier c33

[DeviceB-classifier-c33] if-match service-vlan-id 311

[DeviceB-classifier-c33] traffic classifier c44

[DeviceB-classifier-c44] if-match service-vlan-id 112

[DeviceB-classifier-c44] traffic classifier c55

[DeviceB-classifier-c55] if-match service-vlan-id 212

[DeviceB-classifier-c55] traffic classifier c66

[DeviceB-classifier-c66] if-match service-vlan-id 312

[DeviceB-classifier-c66] quit

[DeviceB] traffic behavior b11

[DeviceB-behavior-b11] remark customer-vlan-id 1

[DeviceB-behavior-b11] traffic behavior b22

[DeviceB-behavior-b22] remark customer-vlan-id 2

[DeviceB-behavior-b22] traffic behavior b33

[DeviceB-behavior-b33] remark customer-vlan-id 3

[DeviceB-behavior-b33] quit

[DeviceB] qos policy p11

[DeviceB-policy-p11] classifier c11 behavior b11

[DeviceB-policy-p11] classifier c22 behavior b22

[DeviceB-policy-p11] classifier c33 behavior b33

[DeviceB-policy-p11] quit

[DeviceB] qos policy p22

[DeviceB-policy-p22] classifier c44 behavior b11

[DeviceB-policy-p22] classifier c55 behavior b22

[DeviceB-policy-p22] classifier c66 behavior b33

[DeviceB-policy-p22] quit

# 配置端口Olt1/0/1允许CVLAN和SVLAN的报文通过。

[DeviceB] interface olt 1/0/1

[DeviceB-Olt1/0/1] port hybrid vlan 1 2 3 111 211 311 tagged

# 开启端口Olt1/0/1的基本QinQ功能。

[DeviceB-Olt1/0/1] qinq enable

# 在端口Olt1/0/1的入方向应用上行策略p1。

[DeviceB-Olt1/0/1] qos apply policy p1 inbound

# 在端口Olt1/0/1的出方向应用下行策略p11。

[DeviceB-Olt1/0/1] qos apply policy p11 outbound

[DeviceB-Olt1/0/1] quit

# 配置端口Olt1/0/2允许CVLAN和SVLAN的报文通过。

[DeviceB] interface olt1/0/2

[DeviceB-Olt1/0/2] port hybrid vlan 1 2 3 112 212 312 tagged

# 开启端口Olt1/0/2的基本QinQ功能。

[DeviceB-Olt1/0/2] qinq enable

# 在端口Olt1/0/2的入方向应用上行策略p2。

[DeviceB-Olt1/0/2] qos apply policy p2 inbound

# 在端口Olt1/0/2的出方向应用下行策略p22。

[DeviceB-Olt1/0/2] qos apply policy p22 outbound

[DeviceB-Olt1/0/2] quit

# 配置端口GigabitEthernet1/1/1允许SVLAN的报文通过。

[DeviceB] interface gigabitethernet1/1/1

[DeviceB-GigabitEthernet1/1/1] port link-type trunk

[DeviceB-GigabitEthernet1/1/1] port trunk permit vlan 111 211 311 112 212 312