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Monitoring MLD Membership for Multicast Groups
Purpose
Display MLD membership information for multicast groups and (S, G) channels. You can use the brief keyword to see a summary of the information. You can use the tracked keyword to see interface information only for interfaces where explicit host tracking is enabled.
Action
To display MLD membership information for multicast groups and (S, G) channels:
host1:boston# show ipv6 mld membership
Flags: M – Uses Oifmap S– SSM mapped T – tracked
1,2 – The version of MLD the group is in
Reporter:
<ip-address> - last reporter if the group is not explicitly tracked
<n>/<m> - <n> reporters include mode, <m> reporters in exclude
Group Source Reporter ExpTim Flags Interface
--------- -------- ---------------------- ------ ------ ---------------
ff0e::40 * fe80::90:1a02:1640:91d 02:41 2S FastEthernet2/1
ff0e::50 1/2 02:56 3MT FastEthernet2/2
fe80::90:1a02:1640:911 02:30
fe80::90:1a02:1640:912 02:48
20::11
fe80::90:1a02:1640:913 02:56
20::12
fe80::90:1a02:1640:911 02:30
20::13
fe80::90:1a02:1640:911 02:30
fe80::90:1a02:1640:912 02:48
fe80::90:1a02:1640:913 02:56
ff0e::60 fe80::90:1a02:1640:901 01:56 3 FastEthernet2/3
10::10 02:45
10::11 02:35
10::12 02:15
10::14 stop
ff0e::70 fe80::90:1a02:1640:91 stop 3 FastEthernet2/4
40::10 01:10
40::11 01.24
ff0e::80 2/0 stop 3T FastEthernet2/5
50::10
fe80::90:1a02:1650:910 02:48
50::11
fe80::90:1a02:1650:920 02:56
fe80::90:1a02:1650:910 02:48
50::12 fe80::90:1a02:1650:920 02:56
ff0e::90 0/3 02:56 2T FastEthernet2/6
*
fe80::90:1a02:1660:910 02:48
fe80::90:1a02:1660:920 02:56
fe80::90:1a02:1660:930 02:48
Meaning
Table 72 lists the show ipv6 mld membership command output fields.
Table 72: show ipv6 mld membership Output Fields
Field Name | Field Description |
|---|---|
Group | Multicast group or (S, G) channel |
Source | (S, G) entries that are forwarding traffic |
Reporter | Hosts that requested including sources or that have not requested excluding sources. If listed under a group, host that sent exclude reports for the group. If listed under a source, host that requested traffic from this source for the group. For any (S, G), if listed under a source, indicates hosts interested in the traffic for this (S, G). |
ExpTim | Expiration time |
Flags |
|
Interface | Type of interface and interface specifier. For details about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide. |
