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Configuring an mld snooping policy, Configuration prerequisites, Configuring an ipv6 multicast group filter – H3C Technologies H3C S7500E Series Switches User Manual

Page 276: Configuring a source ipv6 address for the mld, Messages sent by the proxy, Configuring an mld, Snooping policy

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Configuring a Source IPv6 Address for the MLD Messages Sent by the Proxy

You can set the source IPv6 addresses in the MLD reports and done messages sent by the

MLD snooping proxy on behalf of its attached hosts.

Follow these steps to configure the source IPv6 addresses for the MLD messages sent by the

MLD snooping proxy on behalf of its attached hosts in a VLAN:

To do...

Use the command...

Remarks

Enter system view

system-view

Enter VLAN view

vlan vlan-id

Configure a source

IPv6 address for the

MLD reports sent by

the proxy

mld-snooping report source-ip

{ ipv6-address |

current-interface }

Required

The default is

FE80::02FF:FFFF:FE00:0001.

Configure a source

IPv6 address for the

MLD done messages

sent by the proxy

mld-snooping done source-ip

{ ipv6-address |

current-interface }

The default is

FE80::02FF:FFFF:FE00:0001.

Configuring an MLD Snooping Policy

Configuration Prerequisites

Before configuring an MLD snooping policy, complete the following tasks:

z

Enable MLD snooping in the VLAN

Before configuring an MLD snooping policy, prepare the following data:

z

IPv6 ACL rule for IPv6 multicast group filtering

z

The maximum number of IPv6 multicast groups that can pass the ports

z

802.1p precedence for MLD messages

Configuring an IPv6 Multicast Group Filter

On a MLD snooping–enabled switch, the configuration of an IPv6 multicast group filter allows

the service provider to define limits of multicast programs available to different users.

In an actual application, when a user requests a multicast program, the user’s host initiates an

MLD report. Upon receiving this report message, the switch checks the report against the

configured ACL rule. If the port on which the report was received can join this IPv6 multicast

group, the switch adds an entry for this port in the MLD snooping forwarding table; otherwise

the switch drops this report message. Any IPv6 multicast data that fails the ACL check will not

be sent to this port. In this way, the service provider can control the VOD programs provided for

multicast users.

Configuring an IPv6 multicast group filter globally

Follow these steps to configure an IPv6 multicast group globally: