Configuration Guide User guide

1624 FastIron Configuration Guide
53-1002494-02
MLD snooping configuration
NOTE
In this example, an MLDv1 group is in EXCLUDE mode with a source of 0. The group excludes traffic
from the 0 (zero) source list, which actually means that all traffic sources are included.
To display detailed MLD group information, enter the following command.
If tracking and fast leave are enabled, you can display the list of clients for a particular group by
entering the following command.
Syntax: show ipv6 mld-snooping group [<group-address> [detail] [tracking]]
To receive a report for a specific multicast group, enter that group address for <group-address>.
Enter detail to display the source list of a specific VLAN.
Enter tracking for information on interfaces that are tracking-enabled.
The following table describes the information displayed by the show ipv6 mld-snooping group
command.
Field. Description
group The address of the IPv6 group (destination IPv6 address).
p-port The physical port on which the group membership was received.
ST Yes indicates that the MLD group was configured as a static group; No means it was learned from
reports.
QR Yes means the port is a querier port; No means it is not. A port becomes a non-querier port when
it receives a query from a source with a lower source IP address than the port.
life The number of seconds the group can remain in EXCLUDE mode. An EXCLUDE mode changes to
INCLUDE if it does not receive an IS_EX or TO_EX message during a specified period of time. The
default is 140 seconds. There is no life displayed in INCLUDE mode.
mode The current mode of the interface: INCLUDE or EXCLUDE. If the interface is in INCLUDE mode, it
admits traffic only from the source list. If the interface is in EXCLUDE mode, it denies traffic from
the source list and accepts the rest.
Brocade#show ipv6 mld-snooping group ff0e::ef00:a096 detail
Display group ff0e::ef00:a096 in all interfaces in details.
p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
VL1 : 1 grp, 1 grp-port, tracking_enabled
group p-port ST QR life mode source
1 ff0e::ef00:a096 1/7 N Y 100 EX 0
group: ff0e::ef00:a096, EX, permit 0 (source, life):
life=100, deny 0:
Brocade#show ipv6 mld-snooping group ff0e::ef00:a096 tracking
Display group ff0e::ef00:a096 in all interfaces with tracking enabled.
p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
VL1 : 1 grp, 1 grp-port, tracking_enabled
group p-port ST QR life mode source
1 ff0e::ef00:a096 1/7 N Y 80 EX 0
receive reports from 1 clients: (age)
(fe80::1011:1213:1415 60)