This example shows how to configure a static connection to a multicast router:. You can configure the interval for which the switch waits after sending a group-specific query to determine if hosts are still interested in a specific multicast group. To configure the interval for the IGMP snooping queries sent by the switch, perform this task:.

Router config-vlan-config ip igmp snooping last-member-query-interval interval.

Example Switch and Static ARP Configuration for an Active/Active FireCluster

Configures the interval for the IGMP snooping queries sent by the switch. Default is 1 second. Valid range is to milliseconds. Fast-leave configuration applies to IGMP version 2 hosts only. Enables IGMP snooping. Router config-vlan-config ip igmp snoopin g immediate- leave.


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Router config-vlan-config ip igmp snooping explicit-tracking limit limit. When you enable IGMP snooping, the switch automatically learns to which interface the multicast routers are connected. To display multicast router interfaces, perform this task:. Skip to content Skip to footer. Book Contents Book Contents.


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Find Matches in This Book. PDF - Complete Book Updated: January 19, Joining a Multicast Group Hosts join multicast groups either by sending an unsolicited IGMP join message or by sending an IGMP join message in response to a general query from a multicast router the switch forwards general queries from multicast routers to all ports in a VLAN.

Example Switch and Static ARP Configuration for an Active/Active FireCluster

This example shows how to enable the IGMP snooping querier on VLAN and verify the configuration: Router config ip igmp snooping querier Router config vlan configuration Router config-vlan-config ip igmp snooping querier address This example shows how to configure a static connection to a multicast receiver: Router config mac address-table static Router config vlan configuration Router config-vlan-config ip igmp snooping static Was this Document Helpful?

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Optional Displays the number of multicast entries. Optional Displays only the user-entered static addresses.

Example Configuration

Support for this command was introduced on the Catalyst series switch. Show quick links. Hide Hide permanently. Table of Contents. Cisco Catalyst series Administration Manual pages. Cisco Catalyst Series Configuration Manual pages. Cisco ios system message guide ios release Scalable, intelligent lan switching for campus, branch, and data center networks of all sizes pages.

Scalable, intelligent lan switching for campus, branch, and data center networks of all sizes 59 pages. Ironport systems catalyst series switches installation guide 19 pages. Cisco Catalyst Metro. Cisco Catalyst Cisco Small Business Series. Cisco Catalyst Series.

Cisco Nexus Series. Cisco MDS Series. The service is identified in the bit Group ID field. For example, if ff refers to all Network Time Protocol NTP servers on the local network segment, then ff refers to all NTP servers in an organization's networks. The Group ID field may be further divided for special multicast address types.

Ethernet frames with a value of 1 in the least-significant bit of the first octet [note 3] of the destination MAC address are treated as multicast frames and are flooded to all points on the network. Modern Ethernet controllers filter received packets to reduce CPU load, by looking up the hash of a multicast destination address in a table, initialized by software, which controls whether a multicast packet is dropped or fully received.

From Wikipedia, the free encyclopedia. A multicast is indicated by the first transmitted bit of the destination address being 1.

Multicast address

Multicast Tech. Archived from the original on IPv6 Essentials Second ed. Internet Assigned Numbers Authority. Karl Auerbach. Categories : Network addressing. Hidden categories: CS1 maint: Multiple names: authors list Pages using RFC magic links Articles with short description All articles with unsourced statements Articles with unsourced statements from January Namespaces Article Talk.

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