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Igmp snooping mrouter port
keep-alive time
The keep-alive time vlan of the vlan
Igmp snooping
query-suppression time
The query-suppression time of the vlan as a
l2-general-querier
IGMP Snooping Connect Group
Membership
The group membership of the vlan ， that is the
corresponding relationship between the port and(S,G).
Igmp snooping vlan 1 mrouter
port
The mrouter port of the vlan, including static and
dynamic.
11.4.1.3 show mac-address-table multicast
Command show mac-address-table multicast
Function Show the multicast MAC address table messages
Parameter None
Command Mode Admin Mode
Default Not showing the multicast MAC address and port mapping by system default
11.4.2 IGMP Snooping Troubleshooting
When configuring and using IGMP Snooping function, users might find that the IGMP Snooping
work abnormally, probablely because of the reasons like incorrect physical connection and
configuration. So, the user should ensure the following
Guarantee that the physical connection is corretct;
Ensure that the IGMP Snooping is enabled in global configuration mode(using ip igmp
snooping); ;
Ensure that vlan has configured with IGMP Snooping in global configuration mode(using ip
igmp snooping vlan <vlan-id>);
Ensure that a vlan is configured as a layer 2 general queirer or a static mrouter is configured in
the same segment.
Check the validityof IGMP Snooping information usingcommand”show ip igmp snooping vlan
<vid>”.
If all the above ways cannot solve the problems of IGMP Snooping, please use debug commands
like” debug igmp snooping” , then copy the DEBUG information in 3miniutes and send the
information to the technical service center of our company.
- USER MANUAL 1
- Caution 3
- Electronic Emission Notices 3
- Preface 4
- CONTENTS 5
- Chapter 1 Switch Overview 12
- 1.1.3 Main Features 14
- 1.2 Technical specifications 15
- 1.3 Physical Specifications 16
- 1.4 Product appearance 16
- 1.4.3 Status LEDs 17
- 2.1 Installation Notice 19
- 2.1.1.3 Power Supply 20
- 2.1.2 Installation Notice 21
- 2.1.3 Security Warnings 22
- 2.2 Installation Preparation 22
- 2.3 Hardware Installation 23
- 2.3.1 Installing the Switch 23
- 2.3.2 Connecting Console 23
- Caution! 24
- 3.1 Setup Configuration 26
- 3.2 Main Setup Menu 26
- 3.3 Setup Submenu 26
- 3.3.4 Configuring Web Server 28
- 3.3.5 Configuring SNMP 28
- Chapter 4 Switch Management 31
- 4.1.2 In-band Management 34
- Switch#config 35
- 4.1.2.2 Management via HTTP 36
- 4.2 Management Interface 37
- 4.2.1 CLI Interface 38
- 4.2.1.1.2 Admin Mode 39
- 4.2.1.1.3 Global Mode 39
- 4.2.1.1.4 Interface Mode 39
- 4.2.1.1.5 VLAVLAN Mode 40
- 4.2.1.1.7 ACL Mode 40
- 4.2.1.2 Configuration Syntax 40
- 4.2.1.3 Shortcut Key Support 41
- 4.2.1.4 Help Function 42
- 4.2.1.5 Input Verification 42
- 4.2.2 Web Interfac 43
- 5.1.1 clock set 45
- 5.1.2 config 45
- 5.1.3 exit 45
- 5.1.4 help 46
- 5.1.5 ip host 46
- 5.1.6 ip http server 46
- 5.1.7 hostname 46
- 5.1.8 reload 46
- 5.1.10 language 47
- 5.1.11 web-user 47
- 5.1.12 write 47
- 5.1.9 setup 47
- 5.1.13 show cpu usage 48
- 5.2.1 Ping 48
- 5.2.2 Telnet 48
- 5.2.2.3 Commands for Telnet 50
- 5.2.2.3.2 monitor 50
- 5.2.2.3.3 telnet 50
- 5.2.3 SSH 51
- 5.2.3.3 Commands for SSH 52
- 5.2.3.3.1 ssh-server enable 52
- 5.2.3.3.2 ssh-user 52
- 5.2.3.3.3 ssh-server timeout 53
- 5.2.3.3.6 monitor 53
- 5.2.3.5.1 show ssh-user 54
- 5.2.3.5.2 show ssh-server 54
- 5.2.3.5.3 debug ssh-server 54
- 5.2.4 Traceroute 55
- 5.2.5 Show 55
- 5.2.6 Debug 57
- 5.4 SNMP Configuration 59
- 5.4.1 Introduction To SNMP 59
- 5.4.2 Introduction to MIB 60
- 5.4.3 Introduction to RMON 61
- 5.4.4 SNMP Configuration 61
- 5.4.6 SNMP Troubleshooting 64
- 5.4.6.1.2 show snmp status 65
- 5.4.6.1.4 show snmp user 66
- 5.4.6.1.5 show snmp group 66
- 5.4.6.1.6 show snmp view 66
- 5.5 Switch Upgrade 67
- 5.5.1 BootROM Upgrade 68
- 5.5.2 FTP/TFTP Upgrade 69
- 5.6.1.1 Log Output Channel 72
- 5.6.4.1.1 show channel 76
- 5.7 Classified Configuration 77
- 5.8 Port Isolation 77
- Chapter 7 Port Configuration 82
- 7.2.3.3 Mirror Port Examples 85
- 7.2.3.4.1 show monitor 86
- 7.2.3.4.2 debug mirror 86
- 7.4 Port Troubleshooting 88
- 8.1.1 Obtaining MAC Table 89
- 8.1.2 Forward or Filte 90
- 8.2.2 mac-address-table 91
- 8.4 Troubleshooting 92
- 8.4.2 Troubleshooting 93
- 8.5.1 MAC Address Binding 93
- 8.5.1.3.2 show port-security 95
- Chapter 9 VLAN Configuration 97
- 9.2 VLAN Configuration 98
- Trunk Link 100
- SS2R24G4i/SS2R48G4i 101
- 9.5 VLAN Troubleshooting 105
- 10.1 INTRODUCTION TO RSTP 107
- 10.2 RSTP CONFIGURATION 108
- 10.4 RSTP Troubleshooting 111
- 10.4.2 RSTP TROUBLESHOOTING 112
- Chapter 11 IGMP Snooping 113
- 11.3 IGMP Snooping Examples 115
- 12.3 Multicast VLAN Examples 120
- 13.1 DCSCM Introduction 122
- 13.2 DCSCM Configuration 122
- 13.3 DCSCM Typical Examples 125
- 13.4 DCSCM Troubleshooting 126
- 14.1 Introduction to 802.1x 128
- 14.2 802.1x Configuration 129
- 10.1.1.1 133
- 10.1.1.2 133
- Radius Server 133
- 10.1.1.3 133
- 14.4 802.1x Troubleshooting 134
- Chapter 15 ACL Configuration 139
- 15.3 ACL Configuration 140
- 15.4 ACL Example 150
- 15.5 ACL Troubleshooting 153
- 15.5.2 ACL Troubleshooting 154
- Chapter 16 AM Configuration 156
- 16.4 AM Examples 157
- 16.5 AM Troubleshooting 158
- 16.5.2 AM Troubleshooting 159
- 17.3 Port Channel Example 162
- 18.1 Introduction to DHCP 167
- 18.3 DHCP Troubleshooting 171
- 18.3.2 DHCP Troubleshooting 174
- Scanning 180
- 21.1 Commands for SNTP 182
- 21.1.1 sntp server 182
- 21.1.2 sntp polltime 182
- 21.1.3 sntp timezone 182
- 21.1.4 show sntp 183
- 21.1.5 debug sntp 183
- Chapter 22 QoS Configuration 185
- 22.1.2 QoS Implementation 186
- 22.1.3 Basic QoS Model 186
- 22.2 QoS Configuration 187
- 22.3 QoS Example 190
- 22.4 QoS Troubleshooting 192
- 23.1 Layer3 Interface 196
- 23.2 ARP 197
- 23.2.1 Introduction to ARP 197
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