– 421 –
C
HAPTER
16
| Multicast Filtering
Filtering and Throttling IGMP Groups
Figure 243: Showing Multicast Groups Learned by IGMP Snooping
F
ILTERING AND
T
HROTTLING
IGMP G
ROUPS
In certain switch applications, the administrator may want to control the
multicast services that are available to end users. For example, an IP/TV
service based on a specific subscription plan. The IGMP filtering feature
fulfills this requirement by restricting access to specified multicast services
on a switch port, and IGMP throttling limits the number of simultaneous
multicast groups a port can join.
IGMP filtering enables you to assign a profile to a switch port that specifies
multicast groups that are permitted or denied on the port. An IGMP filter
profile can contain one or more addresses, or a range of multicast
addresses; but only one profile can be assigned to a port. When enabled,
IGMP join reports received on the port are checked against the filter
profile. If a requested multicast group is permitted, the IGMP join report is
forwarded as normal. If a requested multicast group is denied, the IGMP
join report is dropped.
IGMP throttling sets a maximum number of multicast groups that a port
can join at the same time. When the maximum number of groups is
reached on a port, the switch can take one of two actions; either “deny” or
“replace.” If the action is set to deny, any new IGMP join reports will be
dropped. If the action is set to replace, the switch randomly removes an
existing group and replaces it with the new multicast group.
E
NABLING
IGMP
F
ILTERING AND
T
HROTTLING
Use the Multicast > IGMP Snooping > Filter (Configure General) page to
enable IGMP filtering and throttling globally on the switch.
CLI R
EFERENCES
◆
"ip igmp filter (Global Configuration)" on page 978
Содержание LGB6026A
Страница 6: ...ABOUT THIS GUIDE 4...
Страница 40: ...38 CONTENTS...
Страница 60: ...58 SECTION I Getting Started...
Страница 86: ...84 SECTION II Web Configuration Unicast Routing on page 517 Multicast Routing on page 575...
Страница 162: ...160 CHAPTER 5 Interface Configuration VLAN Trunking...
Страница 196: ...194 CHAPTER 6 VLAN Configuration Configuring MAC based VLANs...
Страница 204: ...CHAPTER 7 Address Table Settings Clearing the Dynamic Address Table 202...
Страница 238: ...CHAPTER 11 Class of Service Layer 2 Queue Settings 236...
Страница 254: ...252 CHAPTER 12 Quality of Service Attaching a Policy Map to a Port...
Страница 448: ...446 CHAPTER 16 Multicast Filtering Multicast VLAN Registration...
Страница 470: ...468 CHAPTER 17 IP Configuration Setting the Switch s IP Address IP Version 6...
Страница 576: ...574 CHAPTER 21 Unicast Routing Configuring the Open Shortest Path First Protocol Version 2...
Страница 606: ...604 CHAPTER 22 Multicast Routing Configuring PIMv6 for IPv6...
Страница 620: ...618 CHAPTER 23 Using the Command Line Interface CLI Command Groups...
Страница 672: ...670 CHAPTER 25 System Management Commands Time Range...
Страница 692: ...690 CHAPTER 26 SNMP Commands...
Страница 700: ...698 CHAPTER 27 Remote Monitoring Commands...
Страница 854: ...CHAPTER 34 Port Mirroring Commands Local Port Mirroring Commands 852...
Страница 862: ...860 CHAPTER 36 Address Table Commands...
Страница 958: ...956 CHAPTER 40 Quality of Service Commands...
Страница 1034: ...1032 CHAPTER 42 LLDP Commands...
Страница 1044: ...1042 CHAPTER 43 Domain Name Service Commands...
Страница 1062: ...1060 CHAPTER 44 DHCP Commands DHCP Server...
Страница 1206: ...CHAPTER 47 IP Routing Commands Open Shortest Path First OSPFv3 1204...
Страница 1250: ...1248 SECTION IV Appendices...
Страница 1256: ...1254 APPENDIX A Software Specifications Management Information Bases...
Страница 1278: ...1276 COMMAND LIST...