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# Including and Excluding Traffic

MLDv2 extends MLDv1 functionality with the ability to include or exclude specific multicast traffic sources. That is, with MLDv2, hosts signal (S,G) pairs that they want to include or exclude.

For hosts that cannot signal group membership dynamically, you can use the ipv6 mld static-include or ipv6 mld static-exclude command to statically include or exclude multicast traffic, respectively.

MLDv2 is the industry-designated standard protocol for hosts to signal channel subscriptions in SSM. For additional information about SSM, see PIM Source-Specific Multicast.

ipv6 mld static-exclude

- Use to statically exclude the MLD (S,G) membership for a host that is not capable of dynamically signaling group membership.
- Example
  `
  host1:boston(config-if)#ipv6 mld static-exclude 2001::1 ff0e::1
  `
- Use the no version to remove the static designation.
- See ipv6 mld static-exclude.

ipv6 mld static-include

- Use to statically include the MLD (S,G) membership for a host that is not capable of dynamically signaling group membership.
- Example
  `
  host1:boston(config-if)#ipv6 mld static-include 2001::1 ff0e::1
  `
- Use the no version to remove the static designation.
- See ipv6 mld static-include.

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