User's Manual

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Table Of Contents

Chapter 1 INTRODUCTION
- 1.1 Packet Contents
- 1.2 Product Description
- 1.3 Product Features
- 1.4 Product Specifications
Chapter 2 INSTALLATION
- 2.1 Hardware Description
- 2.2 Switch Installation
Chapter 3 witch Management
- 3.1 Management Options
  - 3.1.1 Out-Of-Band Management
  - 3.1.2 In-band Management
- 3.2 CLI Interface
Chapter 4 Basic Switch Configuration
- 4.1 Basic Configuration
- 4.2 Telnet Management
  - 4.2.1 Telnet
    - 1.1.1.9 Introduction to Telnet
    - 1.1.1.10 Telnet Configuration Task List
  - 4.2.2 SSH
- 4.3 Configure Switch IP Addresses
  - 4.3.1 Switch IP Addresses Configuration Task List
- 4.4 SNMP Configuration
- 4.5 Switch Upgrade
Chapter 5 File System Operations
- 5.1 Introduction to File Storage Devices
- 5.2 File System Operation Configuration Task list
- 5.3 Typical Applications
- 5.4 Troubleshooting
Chapter 6 Cluster Configuration
- 6.1 Introduction to cluster network management
- 6.2 Cluster Network Management Configuration Sequence
- 6.3 Examples of Cluster Administration
- 6.4 Cluster Administration Troubleshooting
Chapter 7 USB Function Configuration
- 7.1 Introduction
- 7.2 USB Function Configuration List
- 7.3 USB Function Examples
- 7.4 USB Function Troubleshooting
Chapter 8 Device Management
- 8.1 Device Management Brief
- 8.2 Device Management Configuration
  - 8.2.1 Monitor and Debug Task
Chapter 9 Port Configuration
- 9.1 Introduction to Port
- 9.2 Network Port Configuration Task List
- 9.3 Port Configuration Example
- 9.4 Port Troubleshooting
Chapter 10 Port Isolation Function Configuration
- 10.1 Introduction to Port Isolation Function
- 10.2 Task Sequence of Port Isolation
- 10.3 Port Isolation Function Typical Examples
Chapter 11 Port Loopback Detection Function Configuration
- 11.1 Introduction to Port Loopback Detection Function
- 11.2 Port Loopback Detection Function Configuration Task List
- 11.3 Port Loopback Detection Function Example
- 11.4 Port Loopback Detection Troubleshooting
Chapter 12 ULDP Function Configuration
- 12.1 Introduction to ULDP Function
- 12.2 ULDP Configuration Task Sequence
- 12.3 ULDP Function Typical Examples
- 12.4 ULDP Troubleshooting
Chapter 13 LLDP Function Operation Configuration
- 13.1 Introduction to LLDP Function
- 13.2 LLDP Function Configuration Task Sequence
- 13.3 LLDP Function Typical Example
- 13.4 LLDP Function Troubleshooting
Chapter 14 Port Channel Configuration
- 14.1 Introduction to Port Channel
- 14.2 Brief Introduction to LACP
  - 14.2.1 Static LACP Aggregation
  - 14.2.2 Dynamic LACP Aggregation
- 14.3 Introduction to Load balance
- 14.4 Port Channel Configuration Task List
- 14.5 Port Channel Examples
- 14.6 Troubleshooting
  - 14.6.1 Port Channel Troubleshooting
  - 14.6.2 Load Balance Troubleshooting
Chapter 15 MTU Configuration
- 15.1 Introduction to MTU
- 15.2 MTU Configuration Task Sequence
Chapter 16 bpdu-tunnel-protocol Configuration
- 16.1 Introduction to bpdu-tunnel-protocol
  - 16.1.1 bpdu-tunnel-protocol function
  - 16.1.2 Background of bpdu-tunnel-protocol
- 16.2 bpdu-tunnel-protocol Configuration Task List
- 16.3 Examples of bpdu-tunnel-protocol
- 16.4 bpdu-tunnel-protocol Troubleshooting
Chapter 17 DDM Configuration
- 17.1 Introduction to DDM
  - 17.1.1 Brief Introduction to DDM
  - 17.1.2 DDM Function
- 17.2 DDM Configuration Task List
- 17.3 Examples of DDM
- 17.4 DDM Troubleshooting
Chapter 18 EFM OAM Configuration
- 18.1 Introduction to EFM OAM
- 18.2 EFM OAM Configuration
- 18.3 EFM OAM Example
- 18.4 EFM OAM Troubleshooting
Chapter 19 LLDP-MED
- 19.1 Introduction to LLDP-MED
- 19.2 LLDP-MED Configuration Task Sequence
- 19.3 LLDP-MED Example
- 19.4 LLDP-MED Troubleshooting
Chapter 20 PORT SECURITY
- 20.1 Introduction to PORT SECURITY
- 20.2 PORT SECURITY Configuration Task List
- 20.3 Example of PORT SECURITY
- 20.4 PORT SECURITY Troubleshooting
Chapter 21 QSFP+ Port Split and Combination Configuration
- 21.1 Introduction to QSFP+ Port Split and Combination Configuration
- 21.2 QSFP+ Port Configuration
- 21.3 Typical Case of QSFP+ Port Configuration
- 21.4 QSFP+ Port Configuration Troubleshooting
Chapter 22 VLAN Configuration
- 22.1 VLAN Configuration
- 22.2 GVRP Configuration
- 22.3 Dot1q-tunnel Configuration
- 22.4 VLAN-translation Configuration
- 22.5 Dynamic VLAN Configuration
- 22.6 Voice VLAN Configuration
- 22.7 Super VLAN Configuration
Chapter 23 MAC Table Configuration
- 23.1 Introduction to MAC Table
  - 23.1.1 Obtaining MAC Table
  - 23.1.2 Forward or Filter
- 23.2 Mac Address Table Configuration Task List
- 23.3 Typical Configuration Examples
- 23.4 MAC Table Troubleshooting
- 23.5 MAC Notification Configuration
Chapter 24 MSTP Configuration
- 24.1 Introduction to MSTP
- 24.2 MSTP Configuration Task List
- 24.3 MSTP Example
- 24.4 MSTP Troubleshooting
Chapter 25 QoS Configuration
- 25.1 Introduction to QoS
- 25.2 QoS Configuration Task List
- 25.3 QoS Example
- 25.4 QoS Troubleshooting
Chapter 26 PBR Configuration
- 26.1 Introduction to PBR
- 26.2 PBR Configuration
- 26.3 PBR Examples
Chapter 27 IPv6 PBR Configuration
- 27.1 Introduction to PBR (Policy-based Router)
- 27.2 PBR Configuration Task Sequence
- 27.3 PBR Examples
- 27.4 PBR Troubleshooting Help
Chapter 28 Flow-based Redirection
- 28.1 Introduction to Flow-based Redirection
- 28.2 Flow-based Redirection Configuration Task Sequence
- 28.3 Flow-based Redirection Examples
- 28.4 Flow-based Redirection Troubleshooting Help
Chapter 29 Egress QoS Configuration
- 29.1 Introduction to Egress QoS
  - 29.1.1 Egress QOS Terms
  - 29.1.2 Basic Egress QoS Model
- 29.2 Egress QoS Configuration
- 29.3 Egress QoS Examples
- 29.4 Egress QoS Troubleshooting Help
Chapter 30 Flexible QinQ Configuration
- 30.1 Introduction to Flexible QinQ
- 30.2 Flexible QinQ Configuration Task List
- 30.3 Flexible QinQ Example
- 30.4 Flexible QinQ Troubleshooting
Chapter 31 Layer 3 Management Configuration
- 31.1 Layer 3 Management Interface
  - 31.1.1 Introduction to Layer 3 Management Interface
  - 31.1.2 Layer 3 Interface Configuration Task List
- 31.2 IP Configuration
- 31.3 ARP
Chapter 32 ARP Scanning Prevention Function Configuration
- 32.1 Introduction to ARP Scanning Prevention Function
- 32.2 ARP Scanning Prevention Configuration Task Sequence
- 32.3 ARP Scanning Prevention Typical Examples
- 32.4 ARP Scanning Prevention Troubleshooting Help
Chapter 33 Prevent ARP, ND Spoofing Configuration
- 33.1 Overview
- 33.2 Prevent ARP, ND Spoofing configuration
- 33.3 Prevent ARP, ND Spoofing Example
Chapter 34 ARP GUARD Configuration
- 34.1 Introduction to ARP GUARD
- 34.2 ARP GUARD Configuration Task List
Chapter 35 Gratuitous ARP Configuration
- 35.1 Introduction to Gratuitous ARP
- 35.2 Gratuitous ARP Configuration Task List
- 35.3 Gratuitous ARP Configuration Example
- 35.4 Gratuitous ARP Troubleshooting
Chapter 36 DHCP Configuration
- 36.1 Introduction to DHCP
- 36.2 DHCP Server Configuration
- 36.3 DHCP Relay Configuration
- 36.4 DHCP Configuration Examples
- 36.5 DHCP Troubleshooting
Chapter 37 DHCPv6 Configuration
- 37.1 Introduction to DHCPv6
- 37.2 DHCPv6 Server Configuration
- 37.3 DHCPv6 Relay Delegation Configuration
- 37.4 DHCPv6 Prefix Delegation Server Configuration
- 37.5 DHCPv6 Prefix Delegation Client Configuration
- 37.6 DHCPv6 Configuration Examples
- 37.7 DHCPv6 Troubleshooting
Chapter 38 DHCP option 82 Configuration
- 38.1 Introduction to DHCP option 82
  - 38.1.1 DHCP option 82 Message Structure
  - 38.1.2 option 82 Working Mechanism
- 38.2 DHCP option 82 Configuration Task List
- 38.3 DHCP option 82 Application Examples
- 38.4 DHCP option 82 Troubleshooting
Chapter 39 DHCPv6 option37, 38
- 39.1 Introduction to DHCPv6 option37, 38
- 39.2 DHCPv6 option37, 38 Configuration Task List
- 39.3 DHCPv6 option37, 38 Examples
  - 39.3.1 DHCPv6 Snooping option37, 38 Example
  - 39.3.2 DHCPv6 Relay option37, 38 Example
- 39.4 DHCPv6 option37, 38 Troubleshooting
Chapter 40 DHCP Snooping Configuration
- 40.1 Introduction to DHCP Snooping
- 40.2 DHCP Snooping Configuration Task Sequence
- 40.3 DHCP Snooping Typical Application
- 40.4 DHCP Snooping Troubleshooting Help
  - 40.4.1 Monitor and Debug Information
  - 40.4.2 DHCP Snooping Troubleshooting Help
Chapter 41 DHCP option 60 and option 43
- 41.1 Introduction to DHCP option 60 and option 43
- 41.2 DHCP option 60 and option 43 Configuration Task List
- 41.3 DHCPv6 option 60 and option 43 Example
- 41.4 DHCP option 60 and option 43 Troubleshooting
Chapter 42 IPv4 Multicast Protocol
- 42.1 IPv4 Multicast Protocol Overview
- 42.2 IGMP
- 42.3 IGMP Snooping
- 42.4 IGMP Proxy Configuration
Chapter 43 IPv6 Multicast Protocol
- 43.1 MLD
- 43.2 MLD Snooping
Chapter 44 Multicast VLAN
- 44.1 Introductions to Multicast VLAN
- 44.2 Multicast VLAN Configuration Task List
- 44.3 Multicast VLAN Examples
Chapter 45 ACL Configuration
- 45.1 Introduction to ACL
- 45.2 ACL Configuration Task List
- 45.3 ACL Example
- 45.4 ACL Troubleshooting
Chapter 46 Self-defined ACL Configuration
- 46.1 Introduction to Self-defined ACL
  - 46.1.1 Standard Self-defined ACL Template
  - 46.1.2 Digital Self-defined ACL
- 46.2 Self-defined ACL Configuration
- 46.3 Self-defined ACL Example
- 46.4 Self-defined ACL Troubleshooting
Chapter 47 802.1x Configuration
- 47.1 Introduction to 802.1x
- 47.2 802.1x Configuration Task List
- 47.3 802.1x Application Example
- 47.4 802.1x Troubleshooting
Chapter 48 The Number Limitation Function of MAC and IP in Port, VLAN Configuration
- 48.1 Introduction to the Number Limitation Function of MAC and IP in Port, VLAN
- 48.2 The Number Limitation Function of MAC and IP in Port, VLAN Configuration Task Sequence
- 48.3 The Number Limitation Function of MAC and IP in Port, VLAN Typical Examples
- 48.4 The Number Limitation Function of MAC and IP in Port, VLAN Troubleshooting Help
Chapter 49 Operational Configuration of AM Function
- 49.1 Introduction to AM Function
- 49.2 AM Function Configuration Task List
- 49.3 AM Function Example
- 49.4 AM Function Troubleshooting
Chapter 50 Security Feature Configuration
- 50.1 Introduction to Security Feature
- 50.2 Security Feature Configuration
- 50.3 Security Feature Example
Chapter 51 TACACS+ Configuration
- 51.1 Introduction to TACACS+
- 51.2 TACACS+ Configuration Task List
- 51.3 TACACS+ Scenarios Typical Examples
- 51.4 TACACS+ Troubleshooting
Chapter 52 RADIUS Configuration
- 52.1 Introduction to RADIUS
  - 52.1.1 AAA and RADIUS Introduction
  - 52.1.2 Message structure for RADIUS
- 52.2 RADIUS Configuration Task List
- 52.3 RADIUS Typical Examples
  - 52.3.1 IPv4 Radius Example
  - 52.3.2 IPv6 RadiusExample
- 52.4 RADIUS Troubleshooting
Chapter 53 SSL Configuration
- 53.1 Introduction to SSL
  - 53.1.1 Basic Element of SSL
- 53.2 SSL Configuration Task List
- 53.3 SSL Typical Example
- 53.4 SSL Troubleshooting
Chapter 54 IPv6 Security RA Configuration
- 54.1 Introduction to IPv6 Security RA
- 54.2 IPv6 Security RA Configuration Task Sequence
- 54.3 IPv6 Security RA Typical Examples
- 54.4 IPv6 Security RA Troubleshooting Help
Chapter 55 VLAN-ACL Configuration
- 55.1 Introduction to VLAN-ACL
- 55.2 VLAN-ACL Configuration Task List
- 55.3 VLAN-ACL Configuration Example
- 55.4 VLAN-ACL Troubleshooting
Chapter 56 MAB Configuration
- 56.1 Introduction to MAB
- 56.2 MAB Configuration Task List
- 56.3 MAB Example
- 56.4 MAB Troubleshooting
Chapter 57 PPPoE Intermediate Agent Configuration
- 57.1 Introduction to PPPoE Intermediate Agent
  - 57.1.1 Brief Introduction to PPPoE
  - 57.1.2 Introduction to PPPoE IA
- 57.2 PPPoE Intermediate Agent Configuration Task List
- 57.3 PPPoE Intermediate Agent Typical Application
- 57.4 PPPoE Intermediate Agent Troubleshooting
Chapter 58 SAVI Configuration
- 58.1 Introduction to SAVI
- 58.2 SAVI Configuration
- 58.3 SAVI Typical Application
- 58.4 SAVI Troubleshooting
Chapter 59 Captive Portal Authentication
- 59.1 Captive Portal Authentication Configuration
- 59.2 Accounting Function Configuration
- 59.3 Free-resource Configuration
- 59.4 Authentication White-list Configuration
- 59.5 Automatic Page Pushing after Successful Authentication (it is not supported currently)
- 59.6 http-redirect-filter
- 59.7 Portal Non-perception
- 59.8 Portal Escaping
  - 59.8.1 Portal Server Escaping
  - 59.8.2 Radius Server Escaping
Chapter 60 VRRP Configuration
- 60.1 Introduction to VRRP
- 60.2 VRRP Configuration Task List
- 60.3 VRRP Typical Examples
- 60.4 VRRP Troubleshooting
Chapter 61 IPv6 VRRPv3 Configuration
- 61.1 Introduction to VRRPv3
  - 61.1.1 The Format of VRRPv3 Message
  - 61.1.2 VRRPv3 Working Mechanism
- 61.2 VRRPv3 Configuration
  - 61.2.1 Configuration Task Sequence
- 61.3 VRRPv3 Typical Examples
- 61.4 VRRPv3 Troubleshooting
Chapter 62 MRPP Configuration
- 62.1 Introduction to MRPP
- 62.2 MRPP Configuration Task List
- 62.3 MRPP Typical Scenario
- 62.4 MRPP Troubleshooting
Chapter 63 ULPP Configuration
- 63.1 Introduction to ULPP
- 63.2 ULPP Configuration Task List
- 63.3 ULPP Typical Examples
  - 63.3.1 ULPP Typical Example1
  - 63.3.2 ULPP Typical Example2
- 63.4 ULPP Troubleshooting
Chapter 64 ULSM Configuration
- 64.1 Introduction to ULSM
- 64.2 ULSM Configuration Task List
- 64.3 ULSM Typical Example
- 64.4 ULSM Troubleshooting
Chapter 65 Mirror Configuration
- 65.1 Introduction to Mirror
- 65.2 Mirror Configuration Task List
- 65.3 Mirror Examples
- 65.4 Device Mirror Troubleshooting
Chapter 66 RSPAN Configuration
- 66.1 Introduction to RSPAN
- 66.2 RSPAN Configuration Task List
- 66.3 Typical Examples of RSPAN
- 66.4 RSPAN Troubleshooting
Chapter 67 SNTP Configuration
- 67.1 Introduction to SNTP
- 67.2 Typical Examples of SNTP Configuration
Chapter 68 NTP Function Configuration
- 68.1 Introduction to NTP Function
- 68.2 NTP Function Configuration Task List
- 68.3 Typical Examples of NTP Function
- 68.4 NTP Function Troubleshooting
Chapter 69 DNSv4/v6 Configuration
- 69.1 Introduction to DNS
- 69.2 DNSv4/v6 Configuration Task List
- 69.3 Typical Examples of DNS
- 69.4 DNS Troubleshooting
Chapter 70 Summer Time Configuration
- 70.1 Introduction to Summer Time
- 70.2 Summer Time Configuration Task Sequence
- 70.3 Examples of Summer Time
- 70.4 Summer Time Troubleshooting
Chapter 71 Monitor and Debug
- 71.1 Ping
- 71.2 Ping6
- 71.3 Traceroute
- 71.4 Traceroute6
- 71.5 Show
- 71.6 Debug
- 71.7 System log
Chapter 72 Reload Switch after Specified Time
- 72.1 Introduce to Reload Switch after Specifid Time
- 72.2 Reload Switch after Specifid Time Task List
Chapter 73 Debugging and Diagnosis for Packets Received and Sent by CPU
- 73.1 Introduction to Debugging and Diagnosis for Packets Received and Sent by CPU
- 73.2 Debugging and Diagnosis for Packets Received and Sent by CPU Task List
Chapter 74 VSF
- 74.1 Overview
- 74.2 Relevant VSF Configuration
- 74.3 Typical VSF Example
- 74.4 VSF Troubleshooting
Chapter 75 SWITCH OPERATION
- 75.1 Address Table
- 75.2 Learning
- 75.3 Forwarding & Filtering
- 75.4 Store-and-Forward
- 75.5 Auto-Negotiation
Chapter 76 TROUBLESHOOTING
Chapter 77 APPENDIX A
- 77.1 A.1 Switch's RJ45 Pin Assignments
- 77.2 A.2 10/100Mbps, 10/100BASE-TX
Chapter 78 GLOSSARY

Configuration Guide of XGS-5240-Series

40-8

switch(Config-Ethernet1/0/12)#ip dhcp snooping trust

switch(Config-Ethernet1/0/12)#exit

switch(config)#interface ethernet 1/0/1-10

switch(Config-Port-Range)#ip dhcp snooping action shutdown

switch(Config-Port-Range)#

40.4 DHCP Snooping Troubleshooting Help

40.4.1

Monitor and Debug Information

The “debug ip dhcp snooping” command can be used to monitor the debug information.

40.4.2 DHCP Snooping Troubleshooting Help

If there is any problem happens when using DHCP Snooping function, please check if the

problem is caused by the following reasons:

 Check that whether the global DHCP Snooping is enabled;

 If the port does not react to invalid DHCP Server packets, please check that

whether the port is set as a non-trusted port of DHCP Snooping.