H3C S7500 Series Operating instructions

Brand: H3C

Model: S7500 Series

Type: Operating instructions

H3C S7500 Series, with its advanced hardware design, provides high-performance data, voice, and video services, with comprehensive security capabilities, and green energy-saving technologies. The series features high-density GE/10GE ports, flexible service processing capabilities, and strong QoS policies. It is widely applied to the access layer of large and medium-sized campus networks, the aggregation layer of large-and medium-sized enterprise networks, and the core layer of small and medium-sized enterprise networks.

Operation Manual – Cluster

H3C S7500 Series Ethernet Switches Table of Contents

Table of Contents

Chapter 1 Cluster...........................................................................................................................1-1

1.1 Cluster Overview................................................................................................................1-1

1.1.1 Introduction to HGMP V2........................................................................................1-1

1.1.2 Introduction to NDP.................................................................................................1-2

1.1.3 Introduction to NTDP............................................................................................... 1-3

1.1.4 Introduction to Cluster.............................................................................................1-4

1.1.5 Switch Roles in the Cluster.....................................................................................1-5

1.2 Management Device Configuration................................................................................... 1-6

1.2.1 Management Device Configuration Task List.........................................................1-6

1.2.2 Enabling NDP Globally and for Specific Ports........................................................1-7

1.2.3 Configuring NDP-Related Parameters....................................................................1-7

1.2.4 Enabling NTDP Globally and for Specific Ports...................................................... 1-7

1.2.5 Configuring NTDP-Related Parameters..................................................................1-8

1.2.6 Enabling the Cluster Function................................................................................. 1-8

1.2.7 Configuring Cluster Parameters.............................................................................. 1-9

1.2.8 Configuring Interaction for the Cluster..................................................................1-10

1.3 Member Device Configuration.........................................................................................1-11

1.3.1 Member Device Configuration Task List...............................................................1-11

1.3.2 Enabling NDP Globally and for Specific Ports......................................................1-11

1.3.3 Enabling NTDP Globally and for Specific Ports.................................................... 1-11

1.3.4 Configure Member Devices to Access FTP/TFTP Server of the Cluster..............1-12

1.4 Intra-Cluster Configuration...............................................................................................1-12

1.5 Displaying and Maintaining a Cluster ..............................................................................1-13

1.6 Cluster Configuration Example........................................................................................1-13

1.6.1 Cluster Configuration Example .............................................................................1-13

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Chapter 1 Cluster

When configuring cluster, go to these sections for information you are interested in:

z Cluster Overview

z Management Device Configuration

z Member Device Configuration

z Intra-Cluster Configuration

z Displaying and Maintaining a Cluster

z Cluster Configuration Example

1.1 Cluster Overview

1.1.1 Introduction to HGMP V2

A cluster is implemented through Huawei group management protocol (HGMP V2). By

employing HGMP V2, a network administrator can manage multiple switches using the

public IP address of a switch known as a management device. The switches under the

management are member devices. The management device, along with the member

devices, forms a cluster. Normally, a public IP address is not assigned to a member

device. Management and maintenance operations intended for the member devices in

a cluster are redirected by the management device.

Figure 1-1 illustrates a typical

cluster implementation.

Network Management Station

69.110.1.100

Network

69.110

Management Device

Member Device

.1.1

Figure 1-1 Diagram for cluste

HGMP V2 offers the following advantages:

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z Simplifying the procedures to configure multiple switches. After assigning a public

IP address to the management device, you can configure/manage a specific

member device on the management device instead of logging in to it in advance.

z Functions of topology discovery and display, which assist network monitoring and

debugging

z Software upgrading and parameter configuring can be performed simultaneously

on multiple switches.

z Free of topology and distance limitations

z Saving IP address resource

HGMP V2 is comprised of the following three protocols:

z Neighbor Discovery Protocol (NDP): HGMP V2 implements NDP to discover the

information about the directly connected neighbor devices, including device type,

software/hardware version, connecting port and so on. The information including

device ID, port mode (duplex or half duplex), product version, and Boot ROM

version can also be given.

z Neighbor Topology Discovery Protocol (NTDP): HGMP V2 implements NTDP to

collect the information about the network topology, including the device

connections and the device information in the network. The hop range for topology

discovery can be adjusted manually.

z Cluster management protocol: The cluster management protocol provides the

member recognition and member management function. It can also perform

large-scaled device management together with the network administrator.

Member recognition means that the management device recognizes each

member in the cluster through locating each member and then distributes the

configuration and management commands to the members. Member

management means to manage the following events through the management

device, including adding a member, removing a member, and the member’s

authentication on the management device. Member management also manages

the cluster parameters including interval of sending handshake packets,

management VLAN of the cluster, public FTP server of the cluster.

Cluster-related configurations are described in the following sections.

1.1.2 Introduction to NDP

NDP is the protocol for discovering the information about the adjacent nodes. NDP

operates on the data link layer, so it supports different network layer protocols.

NDP is used to discover the information about directly connected neighbors, including

the device type, software/hardware version, and connecting port of the adjacent

devices. It can also provide the information concerning device ID, port simplex/duplex

status, product version, and Boot ROM version.

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An NDP-enabled device maintains an NDP information table. Each entry in an NDP

table ages with time. You can also clear the current NDP information manually to have

adjacent information collected again.

An NDP-enabled device broadcasts NDP packets regularly to all active ports. An NDP

packet carries the holdtime field, which indicates the period for the receiving devices to

keep the NDP data. Receiving devices store only the information carried in the received

NDP packets rather than forward them. The corresponding data entry in the NDP table

is updated when the received information is different from the existing one. Otherwise,

only the holdtime of the corresponding entry is updated.

1.1.3 Introduction to NTDP

NTDP is a protocol for network topology information collection. NTDP provides the

information about the devices that can be added to clusters and collects the topology

information within the specified hops for cluster management.

Based on the NDP information table created by NDP, NTDP transmits and forwards

NTDP topology collection requests to collect the NDP information and neighboring

connection information of each device in a specific network range for the management

device or the network administrator to implement required functions.

Upon detecting a change occurred on a neighbor, a member device informs the

management device of the change through handshake packets. The management

device then collects the specified topology information through NTDP. Such a

mechanism enables topology changes to be tracked in time.

 Note:

As for NTDP implementing, you need to perform configurations on the management

device, the member devices, and the candidate devices as follows:

z On the management device, enable NTDP both globally and for specific ports, and

configure the NTDP settings.

z On each member device and candidate device, enable NTDP both globally and for

specific ports. As member devices and candidate devices adopt the NTDP settings

configured for the management device, NTDP setting configurations are not

needed.

z NTDP takes effect in the management VLAN only. S7500 series Ethernet switches

take VLAN 1 as the management VLAN, that is, the NTDP function of the S7500

series takes effect in VLAN 1 only.

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1.1.4 Introduction to Cluster

I. Introduction to cluster configuration

A cluster has one (and only one) management device. Note the following points when

creating a cluster:

z You need to designate a management device first. The management device of a

cluster is the portal of the cluster. That is, any operations performed in external

networks and intended for the member devices of a cluster, such as accessing,

configuring, managing, and monitoring, can only be implemented through the

management device.

z The management device of a cluster recognizes and controls all the member

devices in the cluster, no matter where they are located in the network or how they

are connected.

z The management device collects topology information about all the member and

candidate devices to provide useful information for users to establish a cluster.

z The management device manages and monitors the devices in the cluster by

collecting and processing NDP/NTDP packets. NDP/NTDP packets contain

network topology information.

All the above-mentioned operations need the support of the cluster function.

 Note:

You need to enable the cluster function and configure cluster parameters on a

management device. However, you only need to enable the cluster function on the

member devices and candidate devices.

II. Introduction to function of cluster

Cluster provides the function of batch management for the switches in the network. It

provides external management and maintenance applications, including SNMP,

command line, program and data loading, log reporting and alarm reporting. These

applications can be divided into internal-to-external applications and

external-to-internal applications. All the applications are processed according to the

following procedures:

z The communication between the management device and member device in the

cluster is implemented through packet interaction in the management VLAN.

z The communication between the cluster and the external server is implemented

by the Layer 3 interface of the cluster management VLAN.

z When the member device in the cluster communicates with the external server,

the member device transmits the data to the management device first, and then

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the management device transmits the data to the external server. When the

management program running on the external server manages the member

device, the external server transmits the protocol packets to the management

device first, and then the management device forwards the protocol packets to the

member device.

You can configure public FTP servers, TFTP servers, logging hosts and SNMP hosts

for the whole cluster. The management device in the cluster is the default public FTP

server of the cluster when the public FTP server of the cluster is not configured. Cluster,

together with the network management system, can perform large-scaled device

management.

 Note:

The S7500 series manage the cluster with VLAN 1, which serves as the management

VLAN in the cluster. You are required to configure the IP address of the Layer 3 virtual

interface of the management VLAN before setting up a cluster. Otherwise, the cluster

cannot be set up successfully. After the cluster is set up, you are not allowed to modify

the IP address of the management VLAN interface.

1.1.5 Switch Roles in the Cluster

According to their functions and status in a cluster, switches in the cluster play different

roles. You can specify the role a switch plays. A switch also changes its role according

to specific rules.

The following three switch roles exist in a cluster: management device, member device,

and candidate device.

Table 1-1 Switch roles in the cluster

Role Configuration Description

Management

device

z Configured with a

public IP address.

z Receive

management

commands that a

user sends

through the public

network and

process the

received

commands

z Provide management interfaces for all

switches in the cluster

z Manage member devices by redirecting

commands, that is, forward the

commands to the intended member

devices for processing

z Provide the following functions,

including neighbor discovery, topology

information collection, cluster

management, and cluster state

maintenance, and support all types of

FTP servers and SNMP host proxies

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Role Configuration Description

Member

device

Normally, a member

device is not

configured with a

public IP address

z Member in the cluster

z Neighbor discovery, being managed by

the management device, running

commands forwarded by proxies, and

failure/log reporting

Candidate

device

Normally, a candidate

device is not

configured with a

public IP address

A candidate device is a switch that does not

belong to any cluster, although it can be

added to a cluster

The switch roles are switched according to the following rules:

Candidate Switch

Designates as a

management switch

Cancels the

designated

Management

switch

Joins a

cluster

Member switchManagement switch

Leaves a

cluster

Figure 1-2 Role switching role

z Each cluster has one (and only one) management device. A management device

collects NDP/NTDP information to discover and determine candidate devices,

which can be then added into the cluster through manual configurations.

z A candidate device becomes a member device after being added to a cluster.

z A member device becomes a candidate device after being removed from the

cluster.

1.2 Management Device Configuration

1.2.1 Management Device Configuration Task List

Complete the following tasks to configure the management device:

Task Remarks

Enabling NDP Globally and for Specific Ports Required

Configuring NDP-Related Parameters Required

Enabling NTDP Globally and for Specific Ports Required

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Task Remarks

Configuring NTDP-Related Parameters Required

Enabling the Cluster Function Required

Configuring Cluster Parameters Required

Configuring Interaction for the Cluster Required

1.2.2 Enabling NDP Globally and for Specific Ports

Follow these steps to enable NDP globally and for a specific port:

To do… Use the command… Remarks

Enter system view

system-view

—

Enable NDP globally

ndp enable

Required

By default, NDP is

enabled globally

In system view

ndp enable interface

port-list

Enter

Ethernet

port view

interface interface-type

interface-number

Enable

NDP for

the

specified

Ethernet

ports

Ether

net

port

view

Enable NDP

on the port

ndp enable

You must choose one

of them

By default, NDP is

enabled on the port

1.2.3 Configuring NDP-Related Parameters

Follow these steps to configure NDP-related parameters:

To do… Use the command… Remarks

Enter system view

system-view

—

Configure the

holdtime of NDP

information

ndp timer aging

aging-in-seconds

Optional

By default, the aging time of NDP

packets is 180 seconds

Configure the

interval to send NDP

packets

ndp timer hello

seconds

Optional

By default, the interval of sending

NDP packets is 60 seconds

1.2.4 Enabling NTDP Globally and for Specific Ports

Follow these steps to enable NTDP globally and for specific ports:

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To do… Use the command… Remarks

Enter system view

system-view

—

Enable NTDP globally

ntdp enable

Required

Enter Ethernet port view

interface interface-type

interface-number

—

Enable NTDP for the

Ethernet port

ntdp enable

Required

1.2.5 Configuring NTDP-Related Parameters

Follow these steps to configure NTDP parameters:

To do…

Use the

command…

Remarks

Enter system view

system-view

—

Configure the range within

which topology information

is to be collected

ntdp hop

hop-value

Optional

By default, the hop range for

topology collection is three hops

Configure the hop delay to

forward topology-collection

requests

ntdp timer

hop-delay time

Optional

By default, the delay of the device

is 200 ms

Configure the port delay to

forward topology collection

requests

ntdp timer

port-delay time

Optional

By default, the port delay is 20 ms

Configure the interval to

collect topology information

ntdp timer

interval-in-minut

Optional

By default, the interval of topology

collection is 0.

Quit system view

quit

—

Start topology information

collection

ntdp explore

Optional

1.2.6 Enabling the Cluster Function

Follow these steps to enable the cluster function:

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To do… Use the command… Remarks

Enter system view

system-view

—

Enable the cluster

function globally

cluster enable

Optional

By default, the cluster function is

enabled

1.2.7 Configuring Cluster Parameters

I. Creating a cluster and configuring cluster parameters manually

Follow these steps to configure cluster parameters manually:

To do… Use the command… Remarks

Enter system view

system-view

—

Enter VLAN interface view

interface Vlan-interface

vlan-id

Required

You are required to

configure the IP address

of the Layer 3 virtual

interface of VLAN 1

before you set up a

cluster. Otherwise, the

cluster cannot be set up.

Configure the IP address

of the VLAN interface

ip address ip-address

{ mask | mask-length }

Required

Enter cluster view

cluster

—

Configure an IP address

pool for the cluster

ip-pool

administrator-ip-address

{ ip-mask |

ip-mask-length }

Required

Build a cluster

build name

Optional

The name argument

indicates the name to be

assigned.

Configure the holdtime for

a switch

holdtime seconds

Optional

By default, the holdtime is

60 seconds

Set the interval to send

handshake packets

timer interval

Optional

By default, the interval to

send handshake packets

is 10 seconds

Quit cluster view

quit

—

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II. Building a cluster automatically

Follow these steps to enable the cluster function automatically:

To do… Use the command… Remarks

Enter system view

system-view

—

Enter VLAN interface view

interface Vlan-interface

vlan-id

Required

You are required to

configure the IP address

of the Layer 3 virtual

interface of VLAN 1

before you set up a

cluster. Otherwise, the

cluster cannot be set up.

Configure the IP address

of the VLAN interface

ip address ip-address

{ mask | mask-length }

Required

Enter cluster view

cluster

—

Configure the rang e of

the IP addresses of the

cluster

ip-pool

administrator-ip-address

{ ip-mask |

ip-mask-length }

Required

Build a cluster

automatically

auto-build [ recover ]

Optional

You can build clusters

according to

corresponding prompts

 Note:

z After a cluster is built automatically, ACL 3998 and ACL 3999 will be generated

automatically.

z After a cluster is built automatically, ACL 3998 and ACL 3999 can neither be

configured/modified nor removed.

1.2.8 Configuring Interaction for the Cluster

Follow these steps to configure interaction for the cluster:

To do… Use the command… Remarks

Enter system view

system-view

—

Enter cluster view

cluster

Required

Configure the public FTP server for the

cluster

ftp-server ip-address

Optional

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To do… Use the command… Remarks

Configure the TFTP server for the

cluster

tftp-server ip-address

Optional

Configure the logging host for the

cluster

logging-host

ip-address

Optional

Configure the SNMP host for the cluster

snmp-host ip-address

Optional

1.3 Member Device Configuration

1.3.1 Member Device Configuration Task List

Complete the following tasks to configure a member device:

Task Remarks

Enabling NDP Globally and for Specific Ports Required

Enabling NTDP Globally and for Specific Ports Required

Configure Member Devices to Access FTP/TFTP Server of

the Cluster

Required

1.3.2 Enabling NDP Globally and for Specific Ports

Follow these steps to enable NDP globally and for specific ports:

To do…

Use the

command…

Remarks

Enter system view

system-view

—

Enable NDP globally

ndp enable

Required

In system view

ndp enable

interface port-list

Enter

Ethernet

port view

interface

interface-type

interface-number

Enable

NDP for

specified

ports

Ethernet

port

view

Enable NDP

on the port

ndp enable

Required

You can choose to

enable NDP in system

view or in Ethernet port

view

1.3.3 Enabling NTDP Globally and for Specific Ports

Follow these steps to enable NTDP globally and for specific ports:

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To do… Use the command… Remarks

Enter system view

system-view

—

Enable NTDP globally

ntdp enable

Required

Enter Ethernet port view

interface interface-type

interface-number

—

Enable NTDP for the port

ntdp enable

Required

1.3.4 Configure Member Devices to Access FTP/TFTP Server of the Cluster

Perform the following configuration on a member device:

To do… Use the command… Remarks

Access the public FTP

server of the cluster

ftp cluster

Optional

Available in user view

Download files from the

public TFTP server of the

cluster

tftp cluster get

source-file

[ destination-file ]

Optional

Available in user view

Upload files to the public

TFTP server of the cluster

tftp cluster put

source-file

[ destination-file ]

Optional

Available in user view

1.4 Intra-Cluster Configuration

Follow these steps to configure a cluster:

To do… Use the command… Remarks

Enter system view

system-view

—

Enter cluster view

cluster

—

Add a candidate device to

a cluster

add-member

[ member-number ]

mac-address H-H-H

[ password password ]

Optional

Remove a member device

from the cluster

delete-member

member-number

Optional

Reboot a specified

member device

reboot member

{ member-number |

mac-address H-H-H }

[ eraseflash ]

Optional

Return to system view

quit

—

Return to user view

quit

—

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To do… Use the command… Remarks

Switch between the

management device view

and a member device

view

cluster switch-to

{ member-number |

mac-address H-H-H |

administrator }

Optional

Switch between the

management device view

and the member device

view

1.5 Displaying and Maintaining a Cluster

To do… Use the command… Remarks

Display the global NDP

configuration (including the

interval to send NDP

packets and the holdtime)

display ndp

Display the information

about the neighbors

discovered by NDP and

connected to specified ports

display ndp interface port-list

Display the global NTDP

information

display ntdp

Display device information

collected through NTDP

display ntdp device-list

[ verbose ]

Display state and statistics

information about a cluster

display cluster

Display the information

about the candidate devices

of a cluster

display cluster candidates

[ mac-address H-H-H | verbose ]

Display the information

about the cluster members

display cluster members

[ member-number | verbose ]

Optional

Available in

any view

Clear the NDP statistics on

a port

reset ndp statistics [ interface

port-list ]

—

1.6 Cluster Configuration Example

1.6.1 Cluster Configuration Example

I. Network requirements

Three switches form a cluster, in which:

z The management device is an S7500 switch.

z The rest are member devices.

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The S7500 switch manages other two member devices as the management device.

The detailed information about the cluster is as follows.

z The two member devices are connected to GigabitEthernet 2/0/2 and

GigabitEthernet 2/0/3 of the management device.

z The management device is connected to the external network through

GigabitEthernet 2/0/1.

z GigabitEthernet 2/0/1 belongs to VLAN 1, whose interface IP address is

163.172.55.1.

z All the devices in the cluster use the same FTP server and TFTP server.

z The FTP server and TFTP server share one IP address: 63.172.55.1.

z The SNMP site and log host share one IP address: 69.172.55.4.

II. Network diagram

集群

Internet

GE2/0/1

GE2

0/3 GE2/0/2

Eth1/1 Eth1/1

69.172.55.4

SNMP/loggi

FTP/TFTP Server

63.172.55.1

163.172.55.1

IP address of

VLAN-interface 2

Management

device

MAC address of the

member device

MAC:000f.e201.0011 MAC:000f.e201.0012

MAC address of the

member device

ng host(NMS)

Figure 1-3 Network diagram for HGMP cluster configuratio

III. Configuration procedure

1) Configure the member devices (taking one member as an example)

# Enable NDP globally and for Ethernet 1/1.

<H3C> system-view

[H3C] ndp enable

[H3C] interface Ethernet 1/1

[H3C-Ethernet1/1] ndp enable

[H3C-Ethernet1/1] quit

# Enable NTDP globally and for Ethernet 1/1.

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[H3C] ntdp enable

[H3C] interface Ethernet 1/1

[H3C-Ethernet1/1] ntdp enable

[H3C-Ethernet1/1] quit

# Enable the cluster function.

[H3C] cluster enable

2) Configure the management device

# Configure the IP address of the management VLAN (the S7500 series take VLAN 1

as the default VLAN).

<H3C> system-view

[H3C] interface Vlan-interface 1

[H3C-Vlan-interface1] ip address 163.172.55.1

[H3C-Vlan-interface1] quit

# Enable NDP globally and on ports GE 2/0/2 and GE 2/0/3.

[H3C] ndp enable

[H3C] interface GigabitEthernet 2/0/2

[H3C-GigabitEthernet2/0/2] ndp enable

[H3C-GigabitEthernet2/0/2] interface GigabitEthernet 2/0/3

[H3C-GigabitEthernet2/0/3] ndp enable

[H3C-GigabitEthernet2/0/3] quit

# Configure the holdtime of NDP information to be 200 seconds.

[H3C] ndp timer aging 200

# Configure the interval to send NDP packets to be 70 seconds.

[H3C] ndp timer hello 70

# Enable NTDP globally and for GE 2/0/2 and GE 2/0/3.

[H3C] ntdp enable

[H3C] interface GigabitEthernet 2/0/2

[H3C-GigabitEthernet1/0/2] ntdp enable

[H3C-GigabitEthernet1/0/2] interface GigabitEthernet 2/0/3

[H3C-GigabitEthernet1/0/3] ntdp enable

[H3C-GigabitEthernet1/0/3] quit

# Configure the hop count to collect topology to be 2.

[H3C] ntdp hop 2

# Configure the delay time for topology-collection requests to be forwarded on member

devices to be 150 ms.

[H3C] ntdp timer hop-delay 150

# Configure the delay time for topology-collection requests to be forwarded through the

ports of member devices to be 15 ms.

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[H3C] ntdp timer port-delay 15

# Configure the interval to collect topology information to be 3 minutes.

[H3C] ntdp timer 3

# Enable the cluster function.

[H3C] cluster enable

# Enter cluster view.

[H3C] cluster

[H3C-cluster]

# Configure an IP address pool for the cluster. The IP address pool contains eight IP

addresses, starting from 172.16.0.1.

[H3C-cluster] ip-pool 172.16.0.1 255.255.255.248

# Specify a name for the cluster and create the cluster.

[H3C-cluster] build aaa

[aaa_0.H3C-cluster]

# Add the attached two switches to the cluster.

[aaa_0.H3C-cluster] add-member 1 mac-address 00e0-fc01-0011

[aaa_0.H3C-cluster] add-member 17 mac-address 00e0-fc01-0012

# Configure the holdtime of the member device information to be 100 seconds.

[aaa_0.H3C-cluster] holdtime 100

# Configure the interval to send handshake packets to be 10 seconds.

[aaa_0.H3C-cluster] timer 10

# Configure the FTP Server, TFTP Server, Log host and SNMP host for the cluster.

[aaa_0.H3C-cluster] ftp-server 63.172.55.1

[aaa_0.H3C-cluster] tftp-server 63.172.55.1

[aaa_0.H3C-cluster] logging-host 69.172.55.4

[aaa_0.H3C-cluster] snmp-host 69.172.55.4

3) Configure the member devices (taking one member as an example)

Add the devices connected to the management device into the cluster and perform the

following configuration on the member device.

# Connect the member device to the public remote FTP server of the cluster.

<aaa_1.H3C> ftp cluster

# Download the file named aaa.txt from the public TFTP server to the member device.

<aaa_1.H3C> tftp cluster get aaa.txt

# Upload the file named bbb.txt from the member device to the public TFTP server of

the cluster.

Operation Manual – Cluster

H3C S7500 Series Ethernet Switches Chapter 1

Cluste

1-17

<aaa_1.H3C> tftp cluster put bbb.txt

 Note:

z Upon the completion of the above configurations, you can execute the cluster

switch-to { member-number | mac-address H-H-H } command on the

management device to switch to member device view to maintain and manage a

member device. You can then execute the cluster switch-to administrator

command to resume the management device view.

z You can also reboot a member device by executing the reboot member

{ member-number | mac-address H-H-H } [ eraseflash ] command on the

management device. For detailed information about these configurations, refer to

the preceding description in this chapter.

z After the configuration above, on the SNMP host you can receive logs and SNMP

trap messages of all the cluster members.

H3C S7500 Series Operating instructions

H3C S7500 Series Operating instructions

H3C S7500 Series Operating instructions

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