UMN:CLI
User Manual
V8102
548
11.1.4
MLD Debug
To enable debugging of all MLD or a specific feature of MLD, use the following command.
Command
Mode
Description
debug mld
{
all
|
decode
|
encode
|
events
|
fsm
|
tib
}
Enable
Enables MLD debugging.
all: all MLD
decode: MLD decoding
encode: MLD encoding
events: MLD events
fsm: MLD Finite State Machine (FSM)
tib: MLD Tree Information Base (TIB)
no debug mld
{
all
|
decode
|
encode
|
events
|
fsm
|
tib
}
Disables MLD debugging.
Tree Information Base (TIB) is the collection of state at a router that has been created by
receiving MLD messages from local hosts.
To display the debugging information, use the following command.
Command
Mode
Description
show debugging mld
Enable
Shows the MLD debugging.
show debugging mld snooping
Shows the debugging status of MLD.
11.1.5
MLD Access Control
Multicast routers send membership query messages to determine which multicast groups
have members in the attached local networks of the router. If hosts respond to the queries,
the routers then forward all packets addressed to the multicast group to these group
members.
You can restrict hosts on a network to join multicast groups on the specified access list.
To control an access to multicast groups on an interface, use the following command.
Command
Mode
Description
ipv6 mld access-group
WORD
Interface
[VLAN}
Enables an MLD access-group control on an interface.
WORD: IPv6 access list name
no ipv6 mld access-group
Disables a configured MLD access-group control.
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