Black Box LGB6026A, Management Manual

Page: 1015 / 1289

– 1013 –
C
HAPTER
41 | Multicast Filtering Commands
MLD Proxy Routing
◆
Interfaces with MLD enabled, but not located in the direction of the
multicast tree root are known as downstream or router interfaces.
These interfaces perform the standard MLD router functions by
maintaining a database of all MLD subscriptions on the downstream
interface. MLD must therefore be enabled on all downstream interfaces
which require proxy multicast service.
◆
When changes occur in the downstream MLD groups, an MLD state
change report is created and sent to the upstream router.
◆
If there is an MLDv1 querier on the upstream network, then the proxy
device will act as an MLDv1 host on the upstream interface accordingly.
Otherwise, it will act as an MLDv2 host.
◆
Multicast routing protocols are not supported on interfaces where MLD
proxy service is enabled.
◆
Only one upstream interface is supported on the system.
◆
MLD and MLD proxy cannot be enabled on the same interface.
◆
A maximum of 1024 multicast streams are supported.
E
XAMPLE
The following example enables multicast routing globally on the switch,
configures VLAN 2 as a downstream interface, and then VLAN 1 as the
upstream interface.
Console(config)#ip multicast-routing
Console(config)#interface vlan2
Console(config-if)#ipv6 mld
Console(config-if)#exit
Console(config)#interface vlan1
Console(config-if)#ipv6 mld proxy
Console(config-if)#
ipv6 mld proxy
unsolicited-report-
interval
This command specifies how often the upstream interface should transmit
unsolicited MLD reports. Use the
no form to restore the default value.
S
YNTAX
ipv6 mld proxy unsolicited-report-interval seconds
no ipv6 mld proxy unsolicited-report-interval
seconds - The interval at which to issue unsolicited reports.
(Range: 1-65535 seconds)
D
EFAULT
S
ETTING
400 seconds