Contents

Introduction· 1

Prerequisites· 1

Example: Setting up an IRF 3.1 system·· 1

Network configuration· 1

Software versions used· 2

Restrictions and guidelines· 2

Procedures· 2

Setting up the parent fabric· 2

Configuring cascade ports for PEXs on the parent fabric· 4

Configuring PEXs· 5

Configuring the gateway settings on the IRF 3.1 system·· 5

Configuring access layer devices· 6

Verifying the configuration· 7

Configuration files· 8

Related documentation· 11

 

Introduction

This document provides examples for setting up an IRF 3.1 system.

IRF 3.1 integrates multiple lower-layer devices with a higher-layer IRF fabric to provide high-density, low-cost connectivity at the access layer. IRF 3.1 is implemented based on IEEE 802.1BR.

In an IRF 3.1 system, the higher-layer IRF fabric is called the parent fabric and the lower-layer devices are called bridge port extenders (PEXs). You manage and configure the PEXs from the parent fabric as if they were interface modules on the parent fabric.

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 IRF 3.1.

Example: Setting up an IRF 3.1 system

Network configuration

As shown in Figure 1:

·     Use Member 1 and Member 2 to set up an IRF fabric at the distribution layer. The two devices are H3C S6860 switches.

·     Use the IRF fabric as the parent fabric and attach PEXs to the parent fabric to set up an IRF 3.1 system.

·     The IRF 3.1 system acts as the gateway for users in VLANs 10, 20, and 30.

·     Access layer devices are connected to the IRF 3.1 system through multichassis link aggregation.

Figure 1 Network diagram

 

Software versions used

This configuration example was created and verified on S6860-CMW710-R2612.

Restrictions and guidelines

When you set up the parent fabric, you must set the device operating mode of all member devices to switch mode.

To assign extended ports on multiple PEXs to the same Layer 2 extended-link aggregation group, make sure the PEXs meet the following requirements:

·     The PEXs belong to the same switch series.

·     The PEXs are in the same PEX group.

·     The PEXs are at the same tier.

Procedures

Setting up the parent fabric

1.     Configure Member 1:

# Set the device operating mode to switch mode.

<Sysname> system-view

[Sysname] pex system-working-mode switch

# Shut down Ten-GigabitEthernet 1/0/1 and Ten-GigabitEthernet 1/0/2.

[Sysname] interface range ten-gigabitethernet 1/0/1 to ten-gigabitethernet 1/0/2

[Sysname-if-range] shutdown

[Sysname-if-range] quit

# Bind Ten-GigabitEthernet 1/0/1 and Ten-GigabitEthernet 1/0/2 to IRF-port 1/1.

[Sysname] irf-port 1/1

[Sysname-irf-port1/1] port group interface ten-gigabitethernet 1/0/1

[Sysname-irf-port1/1] port group interface ten-gigabitethernet 1/0/2

[Sysname-irf-port1/1] quit

# Bring up Ten-GigabitEthernet 1/0/1 and Ten-GigabitEthernet 1/0/2 and save the configuration.

[Sysname] interface range ten-gigabitethernet 1/0/1 to ten-gigabitethernet 1/0/2

[Sysname-if-range] undo shutdown

[Sysname-if-range] quit

[Sysname] save

# Activate the IRF port configuration.

[Sysname] irf-port-configuration active

2.     Configure Member 2:

# Set the device operating mode to switch mode.

<Sysname> system-view

[Sysname] pex system-working-mode switch

# Change the IRF member ID to 2 and reboot the device for the new member ID to take effect.

[Sysname] irf member 1 renumber 2

Renumbering the member ID may result in configuration change or loss. Continue? [Y/N]:y

[Sysname] quit

<Sysname> reboot

# Log in to the device and shut down Ten-GigabitEthernet 2/0/1 and Ten-GigabitEthernet 2/0/2.

<Sysname> system-view

[Sysname] interface range ten-gigabitethernet 2/0/1 to ten-gigabitethernet 2/0/2

[Sysname-if-range] shutdown

[Sysname-if-range] quit

# Bind Ten-GigabitEthernet 2/0/1 and Ten-GigabitEthernet 2/0/2 to IRF-port 2/2.

[Sysname] irf-port 2/2

[Sysname-irf-port2/2] port group interface ten-gigabitethernet 2/0/1

[Sysname-irf-port2/2] port group interface ten-gigabitethernet 2/0/2

[Sysname-irf-port2/2] quit

# Bring up Ten-GigabitEthernet 2/0/1 and Ten-GigabitEthernet 2/0/2 and save the configuration.

[Sysname] interface range ten-gigabitethernet 2/0/1 to ten-gigabitethernet 2/0/2

[Sysname-if-range] undo shutdown

[Sysname-if-range] quit

[Sysname] save

# Connect the IRF physical interfaces on Member 2 to the IRF physical interfaces on Member 1. (Details not shown.)

# Activate the IRF port configuration on Member 2.

[Sysname] irf-port-configuration active

Member 1 and Member 2 perform master election. The device that fails the election will reboot automatically to form an IRF fabric with the other device.

Configuring cascade ports for PEXs on the parent fabric

# Enter system view.

<Sysname> system-view

# Enable LLDP globally.

[Sysname] lldp global enable

# Create PEX group 1.

[Sysname] pex group 1

[Sysname-pex-group-1] quit

# Create Layer 2 aggregate interface Bridge-Aggregation 100. The aggregate interface will act as the cascade port connecting to the PEX in slot 100. For easy maintenance, this example assigns the aggregate interface the same number as the PEX virtual slot.

[Sysname] interface bridge-aggregation 100

# Enable PEX connection capability on Bridge-Aggregation 100 and assign Bridge-Aggregation 100 to PEX group 1.

[Sysname-Bridge-Aggregation100] pex-capability enable group 1

The aggregate interface is operating in dynamic aggregation mode and acting as an STP edge port.

# Assign virtual slot number 100 to the PEX.

[Sysname-Bridge-Aggregation100] pex associate slot 100

[Sysname-Bridge-Aggregation100] quit

# Enable LLDP on Ten-GigabitEthernet 1/0/3 and Ten-GigabitEthernet 2/0/3 in interface range view. By default, LLDP is enabled on a port.

[Sysname] interface range ten-gigabitethernet 1/0/3 ten-gigabitethernet 2/0/3

[Sysname-if-range] lldp enable

# Assign Ten-GigabitEthernet 1/0/3 and Ten-GigabitEthernet 2/0/3 to aggregation group 100. The ports will act as the cascade member interfaces.

[Sysname-if-range] port link-aggregation group 100

[Sysname-if-range] quit

# Create Layer 2 aggregate interface Bridge-Aggregation 101. The aggregate interface will act as the cascade port connecting to the PEX in slot 101.

[Sysname] interface bridge-aggregation 101

# Enable PEX connection capability on Bridge-Aggregation 101 and assign the interface to PEX group 1.

[Sysname-Bridge-Aggregation101] pex-capability enable group 1

The aggregate interface is operating in dynamic aggregation mode and acting as an STP edge port.

# Assign virtual slot number 101 to the PEX.

[Sysname-Bridge-Aggregation101] pex associate slot 101

[Sysname-Bridge-Aggregation101] quit

# Enable LLDP on Ten-GigabitEthernet 1/0/4 and Ten-GigabitEthernet 2/0/4 in interface range view. By default, LLDP is enabled on a port.

[Sysname] interface range ten-gigabitethernet 1/0/4 ten-gigabitethernet 2/0/4

[Sysname-if-range] lldp enable

# Assign Ten-GigabitEthernet 1/0/4 and Ten-GigabitEthernet 2/0/4 to aggregation group 101. The ports will act as the cascade member interfaces.

[Sysname-if-range] port link-aggregation group 101

[Sysname-if-range] quit

Configuring PEXs

Configure the devices to be used as PEXs to operate in auto or PEX mode. This example uses PEX 100 to describe the configuration procedure. You can configure PEX 101 in the same way PEX 100 is configured.

# Configure PEX 100 to operate in auto mode. By default, the operating mode is auto.

<Sysname> system-view

[Sysname] pex system-working-mode auto

# Save the running configuration.

[Sysname] save

# Select upstream member interfaces. In this example, Ten-GigabitEthernet 1/0/49 and Ten-GigabitEthernet 1/0/50 are used. For information about candidate upstream member interfaces, see the configuration guides for the PEX. (Details not shown.)

# Connect the upstream member interfaces on PEX 100 to the cascade member interfaces on the parent fabric. (Details not shown.)

Configuring the gateway settings on the IRF 3.1 system

# Enter system view.

<Sysname> system-view

# Create VLANs 10, 20, and 30.

[Sysname] vlan 10 20 30

# Create VLAN-interface 10 and assign IP address 192.168.1.1/24 to the VLAN interface.

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] ip address 192.168.1.1 24

[Sysname-Vlan-interface10] quit

# Create VLAN-interface 20 and assign IP address 192.168.2.1/24 to the VLAN interface.

[Sysname] interface vlan-interface 20

[Sysname-Vlan-interface20] ip address 192.168.2.1 24

[Sysname-Vlan-interface20] quit

# Create VLAN-interface 30 and assign IP address 192.168.3.1/24 to the VLAN interface.

[Sysname] interface vlan-interface 30

[Sysname-Vlan-interface30] ip address 192.168.3.1 24

[Sysname-Vlan-interface30] quit

# Create a Layer 2 extended-link aggregate interface named Bridge-Aggregation 10. The aggregate interface will connect to Device A at the access layer.

[Sysname] interface bridge-aggregation 10 pex

# Assign Bridge-Aggregation 10 to VLAN 10.

[Sysname-Bridge-Aggregation10] port access vlan 10

[Sysname-Bridge-Aggregation10] quit

# Assign GigabitEthernet 100/0/1 and GigabitEthernet 101/0/1 to VLAN 10 and aggregation group 10.

[Sysname] interface range gigabitethernet 100/0/1 gigabitethernet 101/0/1

[Sysname-if-range] port access vlan 10

[Sysname-if-range] port link-aggregation group 10

[Sysname-if-range] quit

# Create a Layer 2 extended-link aggregate interface named Bridge-Aggregation 20. The aggregate interface will connect to Device B at the access layer.

[Sysname] interface bridge-aggregation 20 pex

# Assign Bridge-Aggregation 20 to VLAN 20.

[Sysname-Bridge-Aggregation20] port access vlan 20

[Sysname-Bridge-Aggregation20] quit

# Assign GigabitEthernet 100/0/2 and GigabitEthernet 101/0/2 to VLAN 20 and aggregation group 20.

[Sysname] interface range gigabitethernet 100/0/2 gigabitethernet 101/0/2

[Sysname-if-range] port access vlan 20

[Sysname-if-range] port link-aggregation group 20

[Sysname-if-range] quit

# Create a Layer 2 extended-link aggregate interface named Bridge-Aggregation 30. The aggregate interface will connect to Device C at the access layer.

[Sysname] interface bridge-aggregation 30 pex

# Assign Bridge-Aggregation 30 to VLAN 30.

[Sysname-Bridge-Aggregation30] port access vlan 30

[Sysname-Bridge-Aggregation30] quit

# Assign GigabitEthernet 100/0/3 and GigabitEthernet 101/0/3 to VLAN 30 and aggregation group 30.

[Sysname] interface range gigabitethernet 100/0/3 gigabitethernet 101/0/3

[Sysname-if-range] port access vlan 30

[Sysname-if-range] port link-aggregation group 30

[Sysname-if-range] quit

Configuring access layer devices

1.     Configure Device A:

# Enter system view.

<Sysname> system-view

# Create VLAN 10.

[Sysname] vlan 10

[Sysname-vlan10] quit

# Assign GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to VLAN 10.

[Sysname] interface range gigabitethernet 1/0/1 to gigabitethernet 1/0/3

[Sysname-if-range] port access vlan 10

[Sysname-if-range] quit

# Create Layer 2 aggregate interface Bridge-Aggregation 1 for connecting to the IRF 3.1 system.

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] quit

# Assign GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to aggregation group 1.

[Sysname] interface range gigabitethernet 1/0/1 gigabitethernet 1/0/2

[Sysname-if-range] port link-aggregation group 1

[Sysname-if-range] quit

2.     Configure Device B:

# Enter system view.

<Sysname> system-view

# Create VLAN 20.

[Sysname] vlan 20

[Sysname-vlan20] quit

# Assign GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to VLAN 20.

[Sysname] interface range gigabitethernet 1/0/1 to gigabitethernet 1/0/3

[Sysname-if-range] port access vlan 20

[Sysname-if-range] quit

# Create Layer 2 aggregate interface Bridge-Aggregation 1 for connecting to the IRF 3.1 system.

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] quit

# Assign GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to aggregation group 1 in interface range view.

[Sysname] interface range gigabitethernet 1/0/1 gigabitethernet 1/0/2

[Sysname-if-range] port link-aggregation group 1

[Sysname-if-range] quit

3.     Configure Device C:

# Enter system view.

<Sysname> system-view

# Create VLAN 30.

[Sysname] vlan 30

[Sysname-vlan30] quit

# Assign GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to VLAN 20.

[Sysname] interface range gigabitethernet 1/0/1 to gigabitethernet 1/0/3

[Sysname-if-range] port access vlan 30

[Sysname-if-range] quit

# Create Layer 2 aggregate interface Bridge-Aggregation 1 for connecting to the IRF 3.1 system.

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] quit

# Assign GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to aggregation group 1 in interface range view.

[Sysname] interface range gigabitethernet 1/0/1 gigabitethernet 1/0/2

[Sysname-if-range] port link-aggregation group 1

[Sysname-if-range] quit

Verifying the configuration

# Display device information on the parent fabric. Verify that the IRF 3.1 system has been set up.

<Sysname> display device

Slot Type             State    Subslot  Soft Ver             Patch Ver

1    S6860-54HT       Master   0        2612                 None

2    S6860-54HT       Standby  0        2612                 None

 

PEX in virtual slot : 100

Slot Type             State    Subslot  Soft Ver             Patch Ver

1    S5560-54S-EI     Master   0        S5560-1301           None

 

PEX in virtual slot : 101

Slot Type             State    Subslot  Soft Ver             Patch Ver

1    S5560-54S-EI     Master   0        S5560-1301           None

# Test the gateway service of the IRF 3.1 system. Verify that hosts in VLANs 10, 20, and 30 can ping each other. (Details not shown.)

Configuration files

·     IRF 3.1 system:

#

 pex group 1

#

 lldp global enable

#

 pex system-working-mode switch

#

vlan 10

#

vlan 20

#

vlan 30

#

irf-port 1/1

 port group interface Ten-GigabitEthernet1/0/1

 port group interface Ten-GigabitEthernet1/0/2

#

irf-port 2/2

 port group interface Ten-GigabitEthernet2/0/1

 port group interface Ten-GigabitEthernet2/0/2

#

interface Bridge-Aggregation10 pex

 port access vlan 10

#

interface Bridge-Aggregation20 pex

 port access vlan 20

#

interface Bridge-Aggregation30 pex

 port access vlan 30

#

interface Bridge-Aggregation100

 pex-capability enable group 1

 pex associate slot 100

 link-aggregation mode dynamic

 stp edged-port

#

interface Bridge-Aggregation101

 pex-capability enable group 1

 pex associate slot 101

 link-aggregation mode dynamic

 stp edged-port

#

interface Vlan-interface10

 ip address 192.168.1.1 255.255.255.0

#

interface Vlan-interface20

 ip address 192.168.2.1 255.255.255.0

#

interface Vlan-interface30

 ip address 192.168.3.1 255.255.255.0

#

interface GigabitEthernet100/0/1

 port link-mode bridge

 port access vlan 10

 port link-aggregation group 10

#

interface GigabitEthernet100/0/2

 port link-mode bridge

 port access vlan 20

 port link-aggregation group 20

#

interface GigabitEthernet100/0/3

 port link-mode bridge

 port access vlan 30

 port link-aggregation group 30

#

interface GigabitEthernet101/0/1

 port link-mode bridge

 port access vlan 10

 port link-aggregation group 10

#

interface GigabitEthernet101/0/2

 port link-mode bridge

 port access vlan 20

 port link-aggregation group 20

#

interface GigabitEthernet101/0/3

 port link-mode bridge

 port access vlan 30

 port link-aggregation group 30

#

interface Ten-GigabitEthernet1/0/3

 port link-mode bridge

 port link-aggregation group 100

#

interface Ten-GigabitEthernet1/0/4

 port link-mode bridge

 port link-aggregation group 101

#

interface Ten-GigabitEthernet2/0/3

 port link-mode bridge

 port link-aggregation group 100

#

interface Ten-GigabitEthernet2/0/4

 port link-mode bridge

 port link-aggregation group 101

·     Device A:

#

vlan 10

#

interface Bridge-Aggregation1

 port access vlan 10

#

interface GigabitEthernet1/0/1

 port link-mode bridge

 port access vlan 10

 port link-aggregation group 1

#

interface GigabitEthernet1/0/2

 port link-mode bridge

 port access vlan 10

 port link-aggregation group 1

#

interface GigabitEthernet1/0/3

 port link-mode bridge

 port access vlan 10

·     Device B:

#

vlan 20

#

interface Bridge-Aggregation1

 port access vlan 20

#

interface GigabitEthernet1/0/1

 port link-mode bridge

 port access vlan 20

 port link-aggregation group 1

#

interface GigabitEthernet1/0/2

 port link-mode bridge

 port access vlan 20

 port link-aggregation group 1

#

interface GigabitEthernet1/0/3

 port link-mode bridge

 port access vlan 20

·     Device C:

#

vlan 30

#

interface Bridge-Aggregation1

 port access vlan 30

#

interface GigabitEthernet1/0/1

 port link-mode bridge

 port access vlan 30

 port link-aggregation group 1

#

interface GigabitEthernet1/0/2

 port link-mode bridge

 port access vlan 30

 port link-aggregation group 1

#

interface GigabitEthernet1/0/3

 port link-mode bridge

 port access vlan 30

Related documentation

·     H3C S6860 Switch Series Virtual Technologies Command Reference-Release 26xx

·     H3C S6860 Switch Series Virtual Technologies Configuration Guide-Release 26xx