Configuration Guide User guide

1640 FastIron Configuration Guide
53-1002494-02
MLD snooping configuration
Syntax: [no]mld-snooping port-version 1 | 2 ethernet <stack-unit/slot/port> [ethernet
<stack-unit/slot/port>] [to ethernet <stack-unit/slot/port>]
Configuring static groups to the entire VLAN or to
individual ports
A snooping-enabled VLAN cannot forward multicast traffic to ports that do not receive MLD
membership reports. To allow clients to send reports, you can configure a static group which
applies to the entire VLAN, or to individual ports on the VLAN. The static group forwards packets to
the static group ports even if they have no client membership reports. The static group for the
entire VLAN is used in VLAN flooding because it uses fewer hardware resources than the static
group for individual ports. Configure a static group for specific ports on VLAN 20 using commands
similar to the following.
Brocade(config)#vlan 20
Brocade(config-vlan-20)#mld-snooping static-group ff05::100 count 2 ethe 0/1/3
ethe 0/1/5 to 0/1/7
Brocade(config-vlan-20)#mld-snooping static-group ff10::200
Syntax: [no] mld-snooping static-group <ipv6-address> [count <num>] [<stack-unit/slot/port>]
The ipv6-address parameter is the IPv6 address of the multicast group.
The count is optional, which allows a contiguous range of groups. Omitting the count <num> is
equivalent to the count being 1.
If there are no <stack-unit/slot/port> numbers, the static groups apply to the entire VLAN.
Configuring static router ports
A device always forwards all multicast control and data packets to router ports that receive queries.
Although router ports are learned, you can configure static router ports to force multicast traffic to
specific ports, even though these ports never receive queries. To configure static router ports, enter
commands such as the following.
Brocade(config)#vlan 70
Brocade(config-vlan-70)#mld-snooping router-port e 0/1/4 to 0/1/5 e 0/1/8
Syntax: [no] mld-snooping router-port <stack-unit/slot/port>
Turning off static group proxy
A device with static groups configured acts as a proxy and sends membership reports for its static
groups when it receives general or group-specific queries. When a static group configuration is
removed, the group is deleted from active group table immediately. However, the device does not
send leave messages to the querier. The querier should age the group out. The proxy activity can be
turned off (the default is on). For example.
Brocade(config)#vlan 20
Brocade(config-vlan-20)#mld-snooping proxy-off
Syntax: [no] mld-snooping proxy-off