03-Layer 2 - LAN Switching Configuration Examples

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03-H3C_Port_Isolation_Configuration_Examples
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H3C Port Isolation Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software version: Release 7585P05

Document version: 6W100-20200330

 

Copyright © 2020 New H3C Technologies Co., Ltd. All rights reserved.

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologies Co., Ltd.

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.

The information in this document is subject to change without notice.



Introduction

This document provides port isolation configuration examples.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of port isolation.

Example: Configuring port isolation

Network configuration

As shown in Figure 1, the company branches Site 1 and Site 2 transfer service traffic in VLAN 2 and VLAN 3. Device A connects to the Internet through Ten-GigabitEthernet 1/0/1.

Configure port isolation on Device A to meet the following requirements:

·     All hosts can access the Internet through Device A.

·     Host A and Host B are isolated from each other at Layer 2.

·     Host C and Host D are isolated from each other at Layer 2.

Figure 1 Network diagram

 

Restrictions and guidelines

When you configure port isolation on the device, follow these restrictions and guidelines:

·     Before assigning a port to an isolation group, make sure the isolation group already exists.

·     You can assign a port to only one isolation group.

Procedures

# Create VLAN 2 and assign ports Ten-GigabitEthernet 1/0/2 and Ten-GigabitEthernet 1/0/3 to the VLAN.

<DeviceA> system-view

[DeviceA] vlan 2

[DeviceA-vlan2] port ten-gigabitethernet 1/0/2

[DeviceA-vlan2] port ten-gigabitethernet 1/0/3

[DeviceA-vlan2] quit

# Create VLAN 3 and assign ports Ten-GigabitEthernet 1/0/4 and Ten-GigabitEthernet 1/0/5 to the VLAN.

[DeviceA] vlan 3

[DeviceA-vlan3] port ten-gigabitethernet 1/0/4

[DeviceA-vlan3] port ten-gigabitethernet 1/0/5

[DeviceA-vlan3] quit

# Configure port Ten-GigabitEthernet 1/0/1 as a trunk port and assign it to VLAN 2 and VLAN 3.

[DeviceA] interface ten-gigabitethernet 1/0/1

[DeviceA-Ten-GigabitEthernet1/0/1] port link-type trunk

[DeviceA-Ten-GigabitEthernet1/0/1] port trunk permit vlan 2 3

[DeviceA-Ten-GigabitEthernet1/0/1] quit

# Create isolation groups 1 and 2.

[DeviceA] port-isolate group 1

[DeviceA-port-isolate-group1] quit

[DeviceA] port-isolate group 2

[DeviceA-port-isolate-group2] quit

# Assign ports Ten-GigabitEthernet 1/0/2 and Ten-GigabitEthernet 1/0/3 to isolation group 1.

[DeviceA] interface ten-gigabitethernet 1/0/2

[DeviceA-Ten-GigabitEthernet1/0/2] port-isolate enable group 1

[DeviceA-Ten-GigabitEthernet1/0/2] quit

[DeviceA] interface ten-gigabitethernet 1/0/3

[DeviceA-Ten-GigabitEthernet1/0/3] port-isolate enable group 1

[DeviceA-Ten-GigabitEthernet1/0/3] quit

# Assign ports Ten-GigabitEthernet 1/0/4 and Ten-GigabitEthernet 1/0/5 to isolation group 2.

[DeviceA] interface ten-gigabitethernet 1/0/4

[DeviceA-Ten-GigabitEthernet1/0/4] port-isolate enable group 2

[DeviceA-Ten-GigabitEthernet1/0/4] quit

[DeviceA] interface ten-gigabitethernet 1/0/5

[DeviceA-Ten-GigabitEthernet1/0/5] port-isolate enable group 2

[DeviceA-Ten-GigabitEthernet1/0/5] quit

Verifying the configuration

# Display information about all isolation groups.

[DeviceA] display port-isolate group

 Port isolation group information:

 Group ID: 1

 Group members:

    Ten-GigabitEthernet1/0/2     Ten-GigabitEthernet1/0/3

 Community VLAN ID: None

 

 Group ID: 2

 Group members:

    Ten-GigabitEthernet1/0/4     Ten-GigabitEthernet1/0/5

 Community VLAN ID: None

The output shows that:

·     Ports Ten-GigabitEthernet 1/0/2 and Ten-GigabitEthernet 1/0/3 are in isolation group 1. As a result, Host A and Host B are isolated from each other at Layer 2.

·     Ports Ten-GigabitEthernet 1/0/4 and Ten-GigabitEthernet 1/0/4 are in isolation group 2. As a result, Host C and Host D are isolated from each other at Layer 2.

Configuration files

#

 port-isolate group 1

 port-isolate group 2

#

vlan 2 to 3

#

interface Ten-GigabitEthernet1/0/1

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 to 3

#

interface Ten-GigabitEthernet1/0/2

 port link-mode bridge

 port access vlan 2

 port-isolate enable group 1

#

interface Ten-GigabitEthernet1/0/3

 port link-mode bridge

 port access vlan 2

 port-isolate enable group 1

#

interface Ten-GigabitEthernet1/0/4

 port link-mode bridge

 port access vlan 3

 port-isolate enable group 2

#

interface Ten-GigabitEthernet1/0/5

 port link-mode bridge

 port access vlan 3

 port-isolate enable group 2

#

Related documentation

·     H3C S7500X Switch Series Layer 2—LAN Switching Configuration Guide-R758X

·     H3C S7500X Switch Series Layer 2—LAN Switching Command Reference-R758X