The timer can be set either globally or on a per-VLAN basis. Use this command to change the value of the robustness variable for IGMP snooping from the default 2 to the specified value. You can control the time that multicast traffic is flooded after a TCN event by using the ip igmp snooping tcn flood query count global configuration command. To remove the Layer 2 port from the multicast group, use the no ip igmp snooping vlan vlan-id static mac-address interface interface-id global configuration command. Enables IGMP snooping. However, the leave time might vary around the configured time, depending on real-time CPU load conditions, network delays and the amount of traffic sent through the interface.
This chapter describes how to configure Internet Group Management Protocol ( IGMP) snooping on the. Catalyst series switches.
Multicast Does Not Work in the Same VLAN in Catalyst Switches Cisco
Note. For complete syntax. Catalyst Release SY Software Configuration Guide. Enable the IGMP snooping querier on only one switch in the VLAN.
Enables IGMP snooping. Step 2. Router(config)# end. Exits configuration mode.
Step 3. Router# show ip igmp.
The interval value is an integer from to 25, Subscribers cannot be directly connected to source ports. By default, query solicitation is disabled. This example shows how to enable IGMP snooping globally and verify the configuration:. But, given the fact that the switch intercepts the reply report as well, the other host does not see each of the other reports, and thus, all hosts send a report instead of one per group.
This chapter describes how to configure Internet Group Management Protocol ( IGMP) snooping for. IPv4 multicast traffic on the Catalyst series switches.
If the filtering action permits access to the multicast group, the IGMP report from the port is forwarded for normal processing. You can also display the IGMP throttling configuration for all interfaces on the switch or for a specified interface. Specify the interface to be configured, and enter interface configuration mode.
Find Matches in This Book. Any reports sent to the router should only be those strictly needed for IGMP snooping. When IGMP snooping is disabled, one solution is to manually configure multicast dynamic Content-Addressable Memory CAM entries in order to avoid flooding the subnet with multicast traffic.
Switch1#show ip igmp snooping mrouter. IGMP snooping runs in hardware on the so you should be fine.
Multicast in a Campus Network CGMP and IGMP Snooping Cisco
over different IP subnets you need to enable ip multicast routing and you. IGMP Version 3 (IGMPv3) accommodates extended access lists, which allow you to leverage an important advantage of Source Specific.
The default is If this timer expires before a CGMP Join message is received, the port is pruned from the multicast tree for the multicast group specified in the original leave message. When routers of different versions are present on the same segment, the lower-version routers have no means to detect the higher-version routers.
The switch CPU identifies the MVR IP multicast streams and their associated IP multicast group in the switch forwarding table, intercepts the IGMP messages, and modifies the forwarding table to include or remove the subscriber as a receiver of the multicast stream, even though the receivers might be in a different VLAN from the source.
Video: Enable igmp snooping cisco 6500 Via Switch and IGMP Snooping
Optional Specifies the access control list ACL group to exempt from the limit.
Enable igmp snooping cisco 6500
|If no response is received after this period, the router will stop forwarding traffic for that group, source, or channel only if no host replies to the query within the timeout period.
The host associated with that interface receives multicast traffic for that multicast group. To enforce snooping check on a specific bridge-domain interface, use this command in bridge domain configuration mode.
For more information on document conventions, see the Cisco Technical Tips Conventions. IGMPv3 immediate-leave processing is active if explicit-host tracking is enabled. The feature allows the Layer 2 switch to proxy for a multicast router and send out periodic IGMP queries in that network. To configure the IGMP snooping group-specific query interval, perform this task:.