Dasan V5808 - Ipv6 Multicast Functions

UMN:CLI User Manual
V5808
472
10.2 IPv6 Multicast Functions
This system provides various multicast functions including Layer 2 multicast forwarding,
which allow you to achieve the fully effective and flexible multicast deployment.
10.2.1 Multicast Forwarding Database
Internally, this system forwards the multicast traffic referred to the multicast forwarding
database (McFDB). The McFDB maintains multicast forwarding entries collected from
multicast protocols and features, such as PIM, MLD etc.
10.2.1.1 Blocking Unknown Multicast Traffic
When certain multicast traffic comes to a port and the McFDB has no forwarding
information for the traffic, the IPv6 multicast traffic is flooded to all ports by default. You
can configure the switch not to flood unknown IPv6 multicast traffic.
To configure the switch to discard unknown IPv6 multicast traffic, use the following
command.
Command
Mode
Description
ipv6 unknown-multicast block
Global
Configures the switch to discard unknown IPv6
multicast traffic.
PORTS: unknown IPv6 multicast port number
ipv6 unknown-multicast
port PORTS
ipv6 unknown-multicast
port PORTS block
no ipv6 unknown-multicast
block
Configures the switch to flood unknown IPv6 multicast
traffic. (default)
PORTS: unknown IPv6 multicast port number
no ipv6 unknown-multicast port
PORTS
no ipv6 unknown-multicast port
PORTS block
This command should not be used for the ports to which a multicast router is attached!
10.2.1.2 Forwarding Entry Aging
To specify the aging time for forwarding entries on the McFDB, use the following
command.
Command
Mode
Description
ipv6 mcfdb aging-time
<10-10000000>
Global
Specifies the aging time for forwarding entries on the
McFDB.
10-10000000: IPv6 aging time (default: 300)
no ipv6 mcfdb aging-time
Deletes the specified aging time for forwarding entries.
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