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Auto Detect Configuration Guide
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Network Diagram
Default mode
Login
17 802.1X Configuration Guide
Access Control
Resolution
Precautions None
Authorization
Features of PoE profile
# Enable Dldp globally
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Contents
3Com Stackable Switch Family
3Com Corporation Campus Drive Marlborough, MA USA
Contents
Port Binding Configuration Guide
17 802.1X Configuration Guide
XRN Configuration Guide
VLAN-VPN Configuration Guide
3COM Stackable Switches Advanced Configuration Guide
About this Guide
Conventions
Related
Documentation
Products Supported by this Document
SKU
Products Supported by this Document
About this Guide
Login Configuration Guide
# Enable the Telnet service on VTY
Is manage level level
Applicable Products
# Set the history command buffer size to 20 for VTY
# Set the idle-timeout time of VTY 0 to 6 minutes
# Set the authentication password to 123456 in plain text
# Enter VTY 0 user interface view
Precautions None
Telnet
# Set the history command buffer size to 20 for AUX
# Set the idle-timeout time of AUX 0 to 6 minutes
Configure the authentication mode for console login
Requirements Applicable Products
# Set the authentication mode to scheme for console login
# Enter AUX 0 user interface view
Configuring Login Access Control
Configuration for Snmp login control by source IP address
Configuration for WEB login control by source IP address
Login Configuration Guide
Vlan Configuration Guide
Configuring
Network Diagram
Port-Based Vlan
Complete Configuration Configuration on Switch a
Configuration on Switch B
Precautions
Protocol-Based Vlan
Be disconnected
Assign packets to a Vlan by protocol
Create Vlan 200 and add Ethernet 1/0/12 to Vlan
Vlan 200 is numbered
Configuring Protocol-Based Vlan
Vlan Configuration Guide
Configuration Guide
IP Address Configuration Guide
IP Address
Interface has obtained an IP address through Bootp or Dhcp
That they can communicate with each other
To 172.16.2.1 on the hosts in subnet 172.16.2.0/24
# Ping Host B on Host a to verify the connectivity
Voice Vlan Configuration Guide
Configuring Voice
Packet with the voice Vlan ID automatically
Voice Vlan
Configuration Procedure # Create Vlan 2 and Vlan
# Configure Vlan 2 as the voice Vlan
# Configure Ethernet 1/0/1 as a trunk port
# Enable voice Vlan on Ethernet 1/0/1
# Enable voice Vlan on Ethernet 1/0/2
Traffic
Precautions
Gvrp Configuration Guide
Networking Configuration Requirements
Configuration Procedure Configure Switch a
Configure Switch D
# Create Vlan Configure Switch E
# Display the dynamic Vlan information on Switch B
# Display the dynamic Vlan information on Switch E
SwitchE-Ethernet1/0/1 gvrp registration forbidden
Configuration on Switch D
Configuration on Switch C
Configuration on Switch E
Gvrp Configuration Guide
Port Basic Configuration Guide
Configuring the Basic Functions of an Ethernet Port
Complete Configuration #
# Configure Vlan 100 as the default Vlan of Ethernet 1/0/1
# Enter Ethernet port view of Ethernet 1/0/1
Link Aggregation Configuration Guide
Configuring Link
Aggregation
Networking
Configuration Procedure
Manual aggregation mode # Create manual aggregation group
Complete Configuration
Manual aggregation mode
Static Lacp aggregation mode
Dynamic Lacp aggregation mode
Link Aggregation Configuration Guide
Port Isolation Configuration Guide
Configuring Port
Networking Configuration Requirements Applicable Products
Isolation
Isolation group automatically
Need to perform the configuration manually for each of them
Isolation group that they have joined if any
Port Security Configuration Guide
Configuration Procedure # Enter system view
Security autolearn
Mode
Security Mac-authentication Mode
Configure Radius parameters
# Create a Radius scheme named radius1
# Set aabbcc.net as the default user domain
# Specify the ISP domain for MAC authentication
# Set the port security mode to mac-authentication
# Create a domain named aabbcc.net and enter its view
Userlogin-withoui
Security
Mirroring, fabric port, or link aggregation
Unique identifier OUI value to pass the port
Applicable Products
Configure port security # Enable port security
# Set the port security mode to userlogin-withoui
# Set the maximum number of users of the ISP domain to
# Create a local user
# Configure port security trapping
Configuring Port Security mac-else-userlogin-secure-ext Mode
3Com-isp-aabbcc.net scheme radius-scheme radius1
# Set the NeedToKnow mode of the port to ntkonly
# Set the maximum number of concurrent 802.1x users
Port Security Configuration Guide
Port Binding Configuration Guide
# Enter Ethernet 1/0/1 port view on switch a
Complete Configuration 3Com
MAC Address Table Management Configuration Guide
# Add a static MAC address entry
Command. Otherwise, the entry will not be added
MAC address entry will make the Vlan become a static Vlan
Configuring Dldp
Dldp Configuration Guide
Both of the switches support Dldp
# Enable Dldp globally
# Configure Dldp to operate in enhanced mode
# Restore the ports brought down by Dldp
# Set the interval for sending Dldp packets to 15 seconds
Configuring Dldp
Dldp Configuration Guide
Auto Detect Configuration Guide
Static Routing
Configure Switch C # Enter system view
# Configure a static route to Switch C
# Create detected group
Auto Detect
Implementation
SwitchA system-view SwitchA detect-group
# Set the Vrrp priority of Switch B to
# Configure an IP address for VLAN-interface
Complete Configuration Configure Switch a
Vlan Interface
Auto Detect Implementation in Vlan Interface Backup
Must already exist on Switch C
Ip address 10.1.1.4
Auto Detect Configuration Guide
Mstp Configuration Guide
Configuring Mstp
Configuration on Switch a # Enter MST region view
# Activate the MST region configuration manually
# Specify Switch a as the root bridge of Msti
Configuration on Switch B # Enter MST region view
# Specify Switch C as the root bridge of Msti
Configuration on Switch C # Configure the MST region
Configuration on Switch D # Enter MST region view
Network diagram for VLAN-VPN tunneling configuration
VLAN-VPN Tunneling
Configuration on Switch a # Enable Mstp
Configuration on Switch B # Enable Mstp
Configuration on Switch C # Enable Mstp
# Enable VLAN-VPN tunneling
Configuration on Switch D # Enable Mstp
Configuration on Switch a
# Add the trunk port Ethernet 1/0/2 to all the VLANs
# Add Ethernet 1/0/2 to Vlan
Network topology to become stable
Configuring Rstp
Forwarded along the same spanning tree
Switch 8800 or Switch
# Enable the TC-BPDU attack guard function on Switch a
# Enable the root guard function on each designated port
3Com interface Ethernet 1/0/3 3Com-Ethernet1/0/3 stp disable
Configuring Digest Snooping and Rapid Transition
# Enable digest snooping on Switch B
# Set the priority of Switch B to
# Enable digest snooping on the root port Ethernet 1/0/1
# Enable rapid transition on the root port Ethernet 1/0/1
# Set the priority of Switch C to
# Enable digest snooping on Switch C
# Enable digest snooping on the root port Ethernet 1/0/2
Configuring Digest Snooping and Rapid Transition
Mstp Configuration Guide
Routing Configuration Guide
Configuring Static
Routes
To the peer on each device
Configuration Procedure Configure the switches
Configure the hosts
Configuring RIP
Routing protocols
Configure Switch B # Configure RIP
# Configure RIP
Configure Switch C # Configure RIP
Perform the following configuration on Switch B
Configuring Ospf
# Disable the interfaces from sending Ospf packets
# Enable the interfaces in the specified areas to run Ospf
Perform the following configuration on Switch B
Perform the following configuration on Switch D
Network Diagram Figure
Network diagram for DR/BDR election
# Assign a router ID to Switch a
# Configure an IP address for the Vlan interface
Configure Switch B # Assign a router ID to Switch B
# Assign a DR priority to the Vlan interface
Configure Switch C # Assign a router ID to Switch C
Configure Switch D # Assign a router ID to Switch D
Area Network 196.1.1.0
Configuration Routing table size Requirements
Backbone area
Totally Stub area
Nssa area
# Configure Ospf for the backbone area
Perform the following configuration on Switch a
ABRs/ASBRs
Perform the following configuration on Switch B
Configuration information when area 1 is a stub area
Configuration information when area 1 is a totally stub area
Nssa Area
Network diagram for totally Nssa area configuration
Configuration procedure is omitted
Nssa area configuration 1 area 1 is an Nssa area
Nssa area configuration 2 area 1 is an Nssa area
# Configure area 1 as an Nssa area
Nssa area configuration 3 area 1 is an Nssa area
Vlan Interface Vlan-interface100 Ip address 10.1.1.2
Perform the following configuration on Switch C
Configuration
Route Summarization
Single route and distribute it to other areas
Routers
Network diagram for route summarization configuration
Routes through route summarization
ABR route summarization configuration
# Redistribute the static routes
Asbr route summarization configuration
Based on Ospf basic configuration and area configuration on
Perform the following configuration
From being advertised to any other area
Network 20.1.1.0 0.0.0.255 nssa Area Network 10.1.1.0
Configure Asbr route summarization on Switch D
Configure Switch C
Ip route-static 1.1.7.0 255.255.255.0 30.1.2.2 preference
Configure Switch D
This case, configuring Ospf virtual links is a solution
Virtual Link
# Configure Switch B
Configure Ospf basic functions # Configure Switch a
Configure a virtual link # Configure Switch a
Perform the following configuration on Switch B
# Configure three static routes
# Configure a routing policy
# Configure an ACL
# Configure the IP address of the interface
# Apply ACL 2000 to filter the advertised routes
# Redistribute static routes
SwitchA-ospf-1 asbr-summary 30.0.0.0 255.0.0.0 not-advertise
Ip address 10.0.0.2 Ospf Area Network 10.0.0.0
Routing Configuration Guide
Multicast Configuration Guide
Configuring Igmp
Snooping
Control multicast groups
Configuring Router a
Configuring Switch a
# Enable Igmp Snooping globally
Verifying the configuration
Configuration on Switch a
System view otherwise the configuration will not succeed
Configuring Igmp Snooping Only
Querier
# Enable Igmp Snooping querier in Vlan
# Enable dropping unknown multicast packets
Configuring Switch B
Configuring Switch C
Verifying the configuration
Complete Configuration Configuration on Switch a
Configuration on Switch B
Configuration on Switch C
OstA OstB
Receive multicast packets through Vlan
Configure Switch B # Enable Igmp Snooping globally
SwitchB-vlan10 igmp-snooping enable SwitchB-vlan10 quit
Configuring PIM-SM plus Igmp plus Igmp Snooping
Configuring PIM-SM plus Igmp plus Igmp Snooping
Mode may vary depending on user requirements
Configuration Plan
Configuring multicast protocols
Requirement Analysis
# On Switch F, enable Igmp Snooping globally and in Vlan
Two switches
Host C and verify the configurations made on the switches
# View the PIM neighboring relationships on Switch E
# View the BSR information on Switch E
# View the RP information on Switch E
# View the PIM routing table on Switch a
# View the PIM routing table on Switch E
Configuring simulated joining
As shown above, Host a and Host C can receive multicast data
Complete Configuration Configuration on Switch a
Configuration on Switch E
Configuration on Switch D
Configuration on Switch F
Configuring PIM-DM plus Igmp
Dense mode
Network Diagram Network diagram for PIM-DM configuration
Verifying the configuration
Multicast routing-enable Interface Vlan-interface101
Configuring Anycast RP Application
Network Diagram Network diagram for anycast RP configuration
Configuring Anycast RP Application
Configuring Msdp peers
# Configure an Msdp peer on Switch C
# Configure an Msdp peer on Switch F
# View the brief Msdp peer information on Switch F
# View the PIM routing information on Switch F again
Complete Configuration Configuration on Switch C
Configuration on Switch F
802.1X Configuration Guide
Access Control
Configuration Procedure # Enable 802.1x globally
# Enable 802.1x on Ethernet 1/0/1
# Specify the maximum number of users of the user domain to
Precautions
AAA Configuration Guide
Configuring Radius
Authentication for
Telnet Users
# Configure a Radius scheme
# Configure an ISP domain
# Associate the ISP domain with the Radius scheme
Configuring Dynamic
Authentication
Configuration of the domain cams
Vlan Assignment
# Configure the ISP domain abc as the default ISP domain
# Enable guest Vlan on the port
# Enabled
# Enable 802.1x in interface view
Configuring Local
Hardware capacity
# Configure a local user named telnet
System domain
Telnet users
Users through communicating with Tacacs servers
Configuration Procedure # Configure a Hwtacacs scheme
# Configure domain hwtacacs to use Hwtacacs scheme hwtac
Configuring EAD
Dynamically control their access rights
Entire network
According to the source IP addresses of the packets
# Specify the IP address of the security policy server
Quit Domain system Radius-scheme cams
Configuring MAC
MAC Authentication Configuration Guide
Usernameasmacaddress usernameformat command to set the MAC
# Enable MAC authentication globally
Set the service type to lan-access
# Create an ISP domain named aabbcc.net
Configuring MAC Authentication
MAC Authentication Configuration Guide
Vrrp Configuration Guide
LSW B
Configure Switch a # Configure Vlan
# Set the priority of Switch a in the Vrrp group to
# Configure preemptive mode for the Vrrp group
Configure Switch B # Configure Vlan
Configurations on Switch B
Host a Host C
# Set the priority of Switch B in Vrrp group 2 to
# Set the priority of Switch a in Vrrp group 1 to
# Create Vrrp group
Vrrp Interface
Tracking
Vrrp Interface Tracking
# Set the interface to be tracked
Network Diagram Network diagram for Vrrp port tracking
# Configure VLAN-interface
Complete Configuration On the master
Vrrp Configuration Guide
Dhcp Configuration Guide
Configuration Procedure # Enable Dhcp
# Enable unauthorized Dhcp server detection
Dhcp Server Global Address Pool Configuration Guide
Dhcp Server Interface Address Pool Configuration Guide
SwitchA-Vlan-interface1 dhcp select interface
Requirements
# Map VLAN-interface 1 to Dhcp server group
Dhcp Snooping
Configuration Procedure # Enable Dhcp snooping on the switch
# Specify Ethernet 1/0/5 as a trusted port
Configuration Guide
Configuration Procedure # Create Vlan
# Enable Dhcp accounting
# Enter Ethernet 1/0/1 view and add the port to Vlan
# Enter Ethernet 1/0/2 view and add the port to Vlan
# Create an address pool on the Dhcp server
Configuration Requirements Applicable Products
Dhcp Client
Interface Vlan-interface1 Ip address dhcp-alloc
ACL Configuration Guide
Configuring Basic
ACLs
Numbers of basic ACLs range from 2000 to
Rules conflict, the last assigned rule takes effective
# Apply ACL 3000 to Ethernet 1/0/1
# Apply ACL 4000 to Ethernet 1/0/1
Configuring
# Apply ACL 5000 to Ethernet 1/0/1
Specific fields of packets
Cannot be greater than 79 bytes
Are numbered from Offset1 to Offset8
ARP
ACL Configuration Guide
QOS/QOS Profile Configuration Guide
Configuring Traffic Policing and LR
Configure traffic policing and LR
Policing action issued the last takes effect
# Define a rule to match the packets with source IP address
Kbps, and drop the packets exceeding the rate limit
Configuring Priority Marking and Queue Scheduling
3Com qos cos-local-precedence-map 0 1 2 3 4 5 6
Precautions Note that
Configuring Traffic Redirection and Traffic Accounting
Configuring Traffic Redirection and Traffic Accounting
Configuring QoS Profile
Configuring QoS Profile
# Enable
Passed authentication
Default mode
Cannot be applied in the user-based mode
WEB Cache Redirection Configuration Guide
Cache Redirection
WEB Cache Redirection Configuration Guide
Configuring Web Cache Redirection
WEB Cache Redirection Configuration Guide
Mirroring Configuration Guide
Configuration Procedure Configure Switch C
# Create a local mirroring group
Remote port mirroring application
Network Diagram Network diagram for remote port mirroring
# Configure Vlan 10 as the remote-probe Vlan
Configuration on the source switch Switch a
Configuration on the intermediate switch Switch B
Configuration on the destination switch Switch C
Configuration
Traffic Mirroring
237
Mirroring Configuration Guide
XRN Configuration Guide
Configuration
Fabric cable connection mode of Switch 5500Gs switches
Fabric cable connection mode of Switch 5500s
Fabric Cable Connection
# Configure the unit ID as
Configure Switch a # Bring up the fabric ports
# Configure the unit name as Unit1
Configure Switch B # Bring up the fabric ports
# Configure the fabric name as hello
# Configure the unit name as Unit2
XRN fabric configuration on Switch 5500Gs switches
Complete configuration on Switch 5500Gs switches
Complete Configuration Complete configuration on the Switch
Configurations on Switch a
XRN Fabric Configuration
XRN Configuration Guide
Cluster Configuration Guide
# Enable Ntdp globally and on Ethernet 1/0/1
# Enable the cluster function
# Configure the IP address for VLAN-interface 2 as
# Disable NDP on Ethernet 1/0/1 of the management device
# Enable NDP on Ethernet 1/0/2 and Ethernet 1/0/3
# Set the holdtime of NDP information to 200 seconds
# Set the topology collection range to two hops
# Set the topology collection interval to three minutes
# Name and build a cluster
Configurations on the management device
Precautions
# Configure the IP address of VLAN-interface 3 as
Connection information of the management switch
# Configure the IP address of VLAN-interface 2 as
Cluster
Member switches
Switch B is connected to Switch E through Ethernet 1/0/3
Switch B is connected to Switch F through Ethernet 1/0/4
# Enable Ntdp globally
# Set the holdtime of NDP information to 300 seconds
Aaa0.3Com-cluster tftp-server Aaa0.3Com-cluster snmp-host
Complete Configuration
PoE Configuration
POE/POE Profile Configuration Guide
Implement power supply and data transmission simultaneously
SwitchA poe power-management auto
Features of PoE profile
PoE Profile
SwitchA system-view SwitchA poe-profile Profile1
# Create Profile2 and enter PoE profile view
Precautions
UDP Helper Configuration Guide
# Enable UDP Helper on Switch a
UDP Helper
Processing
Addressing Configuration and IP Performance Configuration
Default ports
Broadcasts containing the destination UDP port number
# Specify the destination server on VLAN-interface
SNMP-RMON Configuration Guide
Configuration Procedure Configuring the switch Snmp agent
Configuring the NMS
3Com rmon event 1 log 3Com rmon event 2 trap
Precautions None
Mode Configuration
NTP Configuration Guide
NTP Client/Server
Configuration Procedure Configure Device C
NTP Symmetric Peers Mode Configuration
# Set Device a as the time server
NTP Broadcast Mode Configuration
Configuration on Device D
Configuration on Device a
# View NTP session information of Device D
Multicast through its VLAN-interface
NTP Multicast Mode Configuration
Respectively
NTP Client/Server Mode with Authentication Configuration
Configuration Level Requirements
Configuration Procedure Configure Device B
Configuration on Device a
Configuration Procedure Configure the SSH server
SSH Configuration Guide
# Generate an RSA key pair
# Set the authentication mode for the user interfaces to AAA
# Enable the user interfaces to support SSH
SSH client configuration interface
SSH client configuration interface
# Set the client’s command privilege level to
RSA authentication
# Assign the public key Switch001 to client client001
Client key pair generation interface
Client key pair generation interface
Client key pair generation interface
SSH client configuration interface
SSH client configuration interface
SSH client configuration interface
Configuration Procedure Configure Switch B
Complete Configuration Configure Switch B
# Establish a connection to the server
Authentication-mode scheme Protocol inbound ssh
# Configure the client public key Switch001
# Display the host public key
SSH server SSH client
# Generate an RSA key pair
# Display the server host public key
# Display the client host public key
# Configure the server public key Switch002 on the client
# Disable first-time authentication
# Specify the server public key on the client
2BE0F7AD
# Configure the authentication method as password
Configuring Sftp
# Create a local user named client001
# Specify the service type as Sftp
# Enable the Sftp server
# Exit Sftp
Interface Vlan-interface1 Ip address 192.168.0.2
SSH Configuration Guide
FTP and Tftp Configuration Guide
Configuration Procedure Configure the switch
# Switch data transfer mode to binary
# Download file config.cfg
Complete Configuration Configure the switch
3Com ftp Ftp
Configuring a Switch
As Tftp Client
Flash memory before downloading the file
Menu to remove them
Vlan Interface Vlan-interface1 Ip address 1.1.1.1
Information Center Configuration Guide
Outputting Log Information to a Unix Log Host
# Execute the following commands as a root user
Configuration on the log host
Complete Configuration Configuration on the switch
Outputting Log Information to a Linux Log Host
Through the same channel
3Com undo info-center source default channel channel6
Complete Configuration #
# Enable terminal display
Configuration Procedure # Enable the information center
Outputting Log Information to Console
Displaying the Time Stamp with the UTC Time Zone
Use of the Facility Argument in Log Information Output
SwitchAinfo-center enable
Inner tag will be used for packet forwarding
VLAN-VPN Configuration Guide
Simple way
Configuration Procedure
Gvrp Ntdp STP
# Set the Tpid value of Ethernet 1/0/12 to
# Set the Tpid value of Ethernet 1/0/22 to
Tunnel
Packets of all VLANs
Configuration Procedure Configure Provide
# Disable NDP on Ethernet 1/0/1
Configure Provide # Disable NDP on Ethernet 1/0/4
# Enable Bpdu tunnel for NDP BPDUs on Ethernet 1/0/4
Complete Configuration Configure Provider
Configure Provider
REMOTE-PING Configuration Guide
Icmp Test Network diagram
Networking and configuration requirements
Remote-ping
# Enable the Remote-ping client
# Configure the test type as Icmp
# Configure the destination IP address as
# Configure the number of probes in one test as
DNS Configuration Guide
Name Resolution
# Configure com as the DNS suffix
Dynamic Domain
Translate them into correct IP addresses
Configurations are done on the devices
DNS server. The DNS server works normally
DNS Configuration Guide
Configuring Access
Access Management Configuration Guide
Management
Vlan to which the port belongs
# Enable access management on Switch a
Can take effect
Configuring Access Management with Port Isolation
# Add Ethernet 1/0/1 to the isolation group
Precautions Refer to Precautions on page 334 for details
# Add Ethernet 1/0/2 to the isolation group
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