Table of Contents

Chapter 1 Link Aggregation Configuration Guide. 1-1

1.1 Configuring Link Aggregation. 1-1

1.1.1 Network Diagram.. 1-1

1.1.2 Networking and Configuration Requirements. 1-1

1.1.3 Applicable Product Matrix. 1-1

1.1.4 Configuration Procedure. 1-2

1.1.5 Complete Configuration. 1-2

1.1.6 Configuration Guidelines. 1-3

 

Chapter 1  Link Aggregation Configuration Guide

1.1  Configuring Link Aggregation

Link aggregation aggregates multiple physical Ethernet ports into one logical link, also called an aggregation group. It allows you to increase bandwidth by distributing traffic across the member ports in the aggregation group. In addition, it provides reliable connectivity because these member ports can dynamically back up each other.

1.1.1  Network Diagram

Figure 1-1 Network diagram for link aggregation configuration

1.1.2  Networking and Configuration Requirements

Switch A aggregates ports GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to form one link connected to Switch B and performs load sharing among these ports.

1.1.3  Applicable Product Matrix

Product series	Software version	Hardware version
S3610 series Ethernet switches	Release 5301	All versions
S5510 series Ethernet switches	Release 5301	All versions
S5500-SI series Ethernet switches	Release 1207	All versions except S5500-20TP-SI
	Release 1301	S5500-20TP-SI
S5500-EI series Ethernet switches	Release 2102	All versions
S7500E series Ethernet switches	Release 6100	All versions

 

1.1.4  Configuration Procedure

 

 

Configure an aggregation group to implement load balancing on the ports in either manual aggregation mode or static LACP aggregation mode:

l           Manual aggregation mode

# Create manual link aggregation group 1.

<SwitchA> system-view

[SwitchA] link-aggregation group 1 mode manual

# Add ports GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to link aggregation group 1.

[SwitchA] interface GigabitEthernet 1/0/1

[SwitchA-GigabitEthernet1/0/1] port link-aggregation group 1

[SwitchA-GigabitEthernet1/0/1] interface GigabitEthernet 1/0/2

[SwitchA-GigabitEthernet1/0/2] port link-aggregation group 1

[SwitchA-GigabitEthernet1/0/2] interface GigabitEthernet 1/0/3

[SwitchA-GigabitEthernet1/0/3] port link-aggregation group 1

l           Static LACP aggregation mode

# Create static link aggregation group 1.

<SwitchA> system-view

[SwitchA] link-aggregation group 1 mode static

# Add ports GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to link aggregation group 1.

[SwitchA] interface GigabitEthernet 1/0/1

[SwitchA-GigabitEthernet1/0/1] port link-aggregation group 1

[SwitchA-GigabitEthernet1/0/1] interface GigabitEthernet 1/0/2

[SwitchA-GigabitEthernet1/0/2] port link-aggregation group 1

[SwitchA-GigabitEthernet1/0/2] interface GigabitEthernet 1/0/3

[SwitchA-GigabitEthernet1/0/3] port link-aggregation group 1

1.1.5  Complete Configuration

1)         Manual aggregation mode:

#

 link-aggregation group 1 mode manual

#

interface GigabitEthernet1/0/1

 port link-aggregation group 1

#

interface GigabitEthernet1/0/2

 port link-aggregation group 1

#

interface GigabitEthernet1/0/3

 port link-aggregation group 1

#

2)         Static LACP aggregation mode:

#

 link-aggregation group 1 mode static

interface GigabitEthernet1/0/1

 port link-aggregation group 1

#

interface GigabitEthernet1/0/2

 port link-aggregation group 1

#

interface GigabitEthernet1/0/3

 port link-aggregation group 1

#

1.1.6  Configuration Guidelines

l           Compatibility problems may occur when devices are connected to one another through static aggregation in different software, since the implementation approach of static aggregation varies with software. You can use the display version command to view the software version information.

l           An RRPP-configured port, a static MAC address or blackhole MAC address-configured port, a voice VLAN-enabled port, and an 802.1x-enabled port cannot be added to an aggregation group.