Dell PowerConnect B-FCXs, Configuration Manual

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PowerConnect B-Series FCX Configuration Guide 901
53-1002266-01
Configuring MLD snooping
27
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.
Displaying MLD snooping mcache information
The MLD snooping mcache contains multicast forwarding information for VLANs. To display
information in the multicast forwarding mcache, enter the following command.
This field... Displays...
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.
source Identifies the source list that will be included or excluded on the interface.
An MLDv1 group is in EXCLUDE mode with a source of 0. The group excludes traffic from 0
(zero) source list, which actually means that all traffic sources are included.
group If you requested a detailed report, the following information is displayed:
•
The multicast group address
•
The mode of the group
•
Sources from which traffic will be admitted (INCLUDE) or denied (EXCLUDE) on the
interface.
•
The life of each source list.
If you requested a tracking/fast leave report, the clients from which reports were received are
identified.
PowerConnect#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 0/1/7 N Y 80 EX 0
receive reports from 1 clients: (age)
(fe80::1011:1213:1415 60)