H3C S6850&S9850&S9820-64H Config Examples-Release 655x-6W100

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75-S-MLAG Configuration Examples
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H3C S6850 & S9850 & S9820-64H

S-MLAG Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 configuration examples for using simple multichassis link aggregation (S-MLAG).

S-MLAG enhances dynamic link aggregation to establish an aggregation that spans multiple standalone devices to a remote device.

Prerequisites

The configuration examples 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.

The following information is provided based on the assumption that you have basic knowledge of S-MLAG.

Example: Configuring S-MLAG

Network configuration

Device B, Device C, and Device D are standalone devices. As shown in Figure 1, configure Device B, Device C, and Device D as S-MLAG devices to establish a multidevice aggregate link with Device A.

Figure 1 Network diagram

 

Analysis

To establish a multidevice aggregate link with Device A, you must perform the following tasks on Device B, Device C, and Device D:

1.      Create a Layer 2 dynamic aggregate interface and assign HundredGigE 1/0/1 to its aggregation group.

2.      Assign the aggregate interfaces to the same DR group.

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

 

Hardware

Software version

S6850 switch series

S9850 switch series

Release 6555P01

S9820-64H switch

Release 6555P01

 

Restrictions and guidelines

Before you assign an interface to an aggregation group, use the display this command in interface view to identify whether attribute settings exist, including port isolation, QinQ, VLAN, and VLAN mapping settings. If attribute settings exist, use the corresponding undo commands to remove them.

Configure the link aggregation settings other than S-MLAG settings on each S-MLAG device. Make sure the settings are consistent across the S-MLAG devices.

As a best practice, maintain consistency across S-MLAG devices in service feature configuration.

Procedures

Configuring Device A

# Create Layer 2 aggregate interface Bridge-Aggregation 10, and set the link aggregation mode to dynamic.

<DeviceA> system-view

[DeviceA] interface bridge-aggregation 10

[DeviceA-Bridge-Aggregation10] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation10] quit

# Assign HundredGigE 1/0/1 through HundredGigE 1/0/3 to aggregation group 10.

[DeviceA] interface hundredgige 1/0/1

[DeviceA-HundredGigE1/0/1] port link-aggregation group 10

[DeviceA-HundredGigE1/0/1] quit

[DeviceA] interface hundredgige 1/0/2

[DeviceA-HundredGigE1/0/2] port link-aggregation group 10

[DeviceA-HundredGigE1/0/2] quit

[DeviceA] interface hundredgige 1/0/3

[DeviceA-HundredGigE1/0/3] port link-aggregation group 10

[DeviceA-HundredGigE1/0/3] quit

Configuring Device B

# Set the LACP system MAC address to 0001-0001-0001.

<DeviceB> system-view

[DeviceB] lacp system-mac 1-1-1

# Set the LACP system priority to 123.

[DeviceB] lacp system-priority 123

# Set the LACP system number to 1.

[DeviceB] lacp system-number 1

# Create Layer 2 aggregate interface Bridge-Aggregation 2, and set the link aggregation mode to dynamic.

[DeviceB] interface bridge-aggregation 2

[DeviceB-Bridge-Aggregation2] link-aggregation mode dynamic

# Assign Bridge-Aggregation 2 to S-MLAG group 100.

[DeviceB-Bridge-Aggregation2] port s-mlag group 100

[DeviceB-Bridge-Aggregation2] quit

# Assign HundredGigE 1/0/1 to aggregation group 2.

[DeviceB] interface hundredgige 1/0/1

[DeviceB-HundredGigE1/0/1] port link-aggregation group 2

[DeviceB-HundredGigE1/0/1] quit

Configuring Device C

# Set the LACP system MAC address to 0001-0001-0001.

<DeviceC> system-view

[DeviceC] lacp system-mac 1-1-1

# Set the LACP system priority to 123.

[DeviceC] lacp system-priority 123

# Set the LACP system number to 2.

[DeviceC] lacp system-number 2

# Create Layer 2 aggregate interface Bridge-Aggregation 3, and set the link aggregation mode to dynamic.

[DeviceC] interface bridge-aggregation 3

[DeviceC-Bridge-Aggregation3] link-aggregation mode dynamic

# Assign Bridge-Aggregation 3 to S-MLAG group 100.

[DeviceC-Bridge-Aggregation3] port s-mlag group 100

# Assign HundredGigE 1/0/1 to aggregation group 3.

[DeviceC] interface hundredgige 1/0/1

[DeviceC-HundredGigE1/0/1] port link-aggregation group 3

[DeviceC-HundredGigE1/0/1] quit

Configuring Device D

# Set the LACP system MAC address to 0001-0001-0001.

<DeviceD> system-view

[DeviceD] lacp system-mac 1-1-1

# Set the LACP system priority to 123.

[DeviceD] lacp system-priority 123

# Set the LACP system number to 3.

[DeviceD] lacp system-number 3

# Create Layer 2 aggregate interface Bridge-Aggregation 4, and set the link aggregation mode to dynamic.

[DeviceD] interface bridge-aggregation 4

[DeviceD-Bridge-Aggregation4] link-aggregation mode dynamic

# Assign Bridge-Aggregation 4 to S-MLAG group 100.

[DeviceD-Bridge-Aggregation4] port s-mlag group 100

# Assign HundredGigE 1/0/1 to aggregation group 4.

[DeviceD] interface hundredgige 1/0/1

[DeviceD-HundredGigE1/0/1] port link-aggregation group 4

[DeviceD-HundredGigE1/0/1] quit

Verifying the configuration

# Verify that HundredGigE 1/0/1 through HundredGigE 1/0/3 on Device A are Selected ports.

[DeviceA] display link-aggregation verbose

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

 

Aggregate Interface: Bridge-Aggregation10

Creation Mode: Manual

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x8000, a0c7-9afd-0100

Local:

  Port                Status   Priority Index    Oper-Key               Flag

  HGE1/0/1            S        32768    1        1                      {ACDEF}

  HGE1/0/2            S        32768    2        1                      {ACDEF}

  HGE1/0/3            S        32768    3        1                      {ACDEF}

Remote:

  Actor               Priority Index    Oper-Key SystemID               Flag

  HGE1/0/1(R)         32768    16385    50100    0x7b  , 0001-0001-0001 {ACDEF}

  HGE1/0/2            32768    32769    50100    0x7b  , 0001-0001-0001 {ACDEF}

  HGE1/0/3            32768    49153    50100    0x7b  , 0001-0001-0001 {ACDEF}

Configuration files

·           Device A:

#

interface Bridge-Aggregation10

 link-aggregation mode dynamic

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-aggregation group 10

#

interface HundredGigE1/0/2

 port link-mode bridge

 port link-aggregation group 10

#

interface HundredGigE1/0/3

 port link-mode bridge

 port link-aggregation group 10

#

·           Device B:

#

 lacp system-mac 0001-0001-0001

 lacp system-number 1

 lacp system-priority 123

#

interface Bridge-Aggregation2

 link-aggregation mode dynamic

 port s-mlag group 100

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-aggregation group 2

#

·           Device C:

#

 lacp system-mac 0001-0001-0001

 lacp system-number 2

 lacp system-priority 123

#

interface Bridge-Aggregation3

 link-aggregation mode dynamic

 port s-mlag group 100

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-aggregation group 3

#

·           Device D:

#

 lacp system-mac 0001-0001-0001

 lacp system-number 3

 lacp system-priority 123

#

interface Bridge-Aggregation4

 link-aggregation mode dynamic

 port s-mlag group 100

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-aggregation group 4

#

Related documentation

·           H3C S6850 & S9850 Switch Series Layer 2—LAN Switching Configuration Guide-Release 655x

·           H3C S6850 & S9850 Switch Series Layer 2—LAN Switching Command Reference-Release 655x

·           H3C S9820-64H Switch Layer 2—LAN Switching Configuration Guide-Release 655x

·           H3C S9820-64H Switch Layer 2—LAN Switching Command Reference-Release 655x