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Overview and Topology
IGMP snooping controls multicast traffic in a switched network. With IGMP snooping
enabled, an EX Series switch monitors the IGMP transmissions between a host and a
multicast router to keep track of the multicast groups and associated member ports.
The switch uses this information to make intelligent decisions and forward multicast
traffic to the intended destination interfaces.
You can configure IGMP snooping on all interfaces in a VLAN or on individual interfaces.
This example shows how to configure IGMP snooping on an EX Series switch.
The configuration setup for this example includes the VLAN
employee-vlan
on the switch.
Table 300 on page 2324 shows the components of the topology for this example.
Table 300: Components of the IGMP Snooping Topology
Settings
Properties
One EX3200-24T switch
Switch hardware
employee-vlan
, tag
20
VLAN name
ge-0/0/1
,
ge-0/0/2
,
ge-0/0/3
Interfaces in
employee-vlan
225.100.100.100
Multicast IP address for
employee-vlan
In this example, the switch is initially configured as follows:
•
IGMP snooping is disabled on the VLAN.
Configuration
To configure basic IGMP snooping on a switch:
CLI Quick
Configuration
To quickly configure IGMP snooping, copy the following commands and paste them into
the switch terminal window:
[edit protocols]
set igmp-snooping vlan employee-vlan
set igmp-snooping vlan employee-vlan interface ge-0/0/1 group-limit 50
set igmp-snooping vlan employee-vlan immediate-leave
set igmp-snooping vlan employee-vlan interface ge-0/0/3 static group 225.100.100.100
set igmp-snooping vlan employee-vlan interface ge-0/0/2 multicast-router-interface
set igmp-snooping vlan employee-vlan robust-count 4
Step-by-Step
Procedure
Configure IGMP snooping:
1.
Enable and configure IGMP snooping on the VLAN
employee-vlan
:
[edit protocols]
user@switch#
set
igmp-snooping
vlan employee-vlan
2.
Configure the limit for the number of multicast groups allowed on the
ge-0/0/1
interface to 50.
Copyright © 2010, Juniper Networks, Inc.
2324
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Содержание JUNOS OS 10.3 - SOFTWARE
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Страница 249: ...CHAPTER 13 Operational Mode Commands for User Interfaces 153 Copyright 2010 Juniper Networks Inc ...
Страница 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
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Страница 483: ...CHAPTER 21 Configuration Statements for Power Management 387 Copyright 2010 Juniper Networks Inc ...
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Страница 543: ...CHAPTER 27 Operational Mode Commands for Configuration Management 447 Copyright 2010 Juniper Networks Inc ...
Страница 631: ...CHAPTER 33 Operational Mode Commands for User and Access Management 535 Copyright 2010 Juniper Networks Inc ...
Страница 709: ...CHAPTER 38 Operational Mode Commands for System Services 613 Copyright 2010 Juniper Networks Inc ...
Страница 763: ...CHAPTER 41 Configuration Statements for System Monitoring 667 Copyright 2010 Juniper Networks Inc ...
Страница 817: ...CHAPTER 42 Operational Mode Commands for System Monitoring 721 Copyright 2010 Juniper Networks Inc ...
Страница 1014: ...Copyright 2010 Juniper Networks Inc 918 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
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Страница 1565: ...CHAPTER 63 Operational Mode Commands for Bridging and VLANs 1469 Copyright 2010 Juniper Networks Inc ...
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Страница 1731: ...CHAPTER 69 Operational Mode Commands for Spanning Tree Protocols 1635 Copyright 2010 Juniper Networks Inc ...
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Страница 2107: ...CHAPTER 74 Operational Commands for Layer 3 Protocols 2011 Copyright 2010 Juniper Networks Inc ...
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Страница 2517: ...CHAPTER 80 Operational Mode Commands for IGMP Snooping and Multicast 2421 Copyright 2010 Juniper Networks Inc ...
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Страница 2643: ...Figure 51 Topology for Configuration 2547 Copyright 2010 Juniper Networks Inc Chapter 82 Examples Access Control Configuration ...
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Страница 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
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Страница 2911: ...CHAPTER 92 Operational Mode Commands for Rate Limiting 2815 Copyright 2010 Juniper Networks Inc ...
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Страница 3081: ...CHAPTER 99 Operational Mode Commands for Port Security 2985 Copyright 2010 Juniper Networks Inc ...
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Страница 3217: ...CHAPTER 106 Operational Mode Commands for Firewall Filters 3121 Copyright 2010 Juniper Networks Inc ...
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Страница 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
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Страница 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
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Страница 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...
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Страница 3929: ...CHAPTER 135 Operational Mode Commands for General Network Management and Monitoring 3833 Copyright 2010 Juniper Networks Inc ...
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