Multicast Listener Discovery (MLD) Snooping

Configuring MLD

Configuring Per-Port MLD Traffic Filters

Syntax: ipv6 mld [auto <port-list> blocked <port-list> forward <port-list>]

Note: This command must be issued in a VLAN context.

This command sets per-port traffic filters, which specify how each port should handle MLD traffic. Allowed settings are: auto—follows MLD snooping rules: packets are forwarded for joined groups

blocked—all multicast packets are dropped, except that packets for well known addresses are forwarded

forward—all multicast packets are forwarded

The default value of the filter is auto.

<port-list>—specifies the affected port or range of ports

For example:

ProCurve(vlan-8)# ipv6 mld forward a16-a18

ProCurve(vlan-8)# ipv6 mld blocked a19-a21

ProCurve(vlan-8)# show ipv6 mld vlan 8 config

MLD Service Vlan Config

VLAN

ID : 8

 

 

 

 

 

VLAN

NAME : VLAN8

: Yes

 

 

 

MLD Enabled [No]

: Yes

 

 

Querier Allowed [Yes]

 

 

Port

Type

Port

Mode

Forced Fast Leave

Fast Leave

----

--------- +

---------

-----------------

----------

A13

100/1000T

auto

 

No

Yes

A14

100/1000T

auto

 

No

Yes

A15

100/1000T

auto

 

No

Yes

A16

100/1000T

forward

No

Yes

A17

100/1000T

forward

No

Yes

A18

100/1000T

forward

No

Yes

A19

100/1000T

blocked

No

Yes

A20

100/1000T

blocked

No

Yes

A21

100/1000T

blocked

No

Yes

A22

100/1000T

auto

 

No

Yes

A23

100/1000T

auto

 

No

Yes

A24

100/1000T

auto

 

No

Yes

Figure 7-3. Example of an MLD Configuration with Traffic Filters

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