Specifications

205
DCS-3950 series Ethernet switch manual
is enabled.
Igmp snooping is turned on for
vlan 1(querier)
Which vlans of the switch enable igmp snooping
function, and whether they are l2-general-queriers
2. Display the detailed information of IGMP Snooping of vlan1
Switch#show ip igmp snooping vlan 1
Igmp snooping information for vlan 1
Igmp snooping L2 general querier :Yes(COULD_QUERY)
Igmp snooping query-interval :125(s)
Igmp snooping max reponse time :10(s)
Igmp snooping robustness :2
Igmp snooping mrouter port keep-alive time :255(s)
Igmp snooping query-suppression time :255(s)
IGMP Snooping Connect Group Membership
Note:*-All Source, (S)- Include Source, [S]-Exclude Source
Groups Sources Ports Exptime System Level
238.1.1.1 (192.168.0.1) Ethernet0/0/8 00:04:14 V2
(192.168.0.2) Ethernet0/0/8 00:04:14 V2
Igmp snooping vlan 1 mrouter port
Note:’!’-static mrouter port
!Ethernet0/0/2
Displayed Informaton Explanation
Igmp snooping L2 general
querier
Whether vlan has started l2-general-querier function;
and display the state of the querier: could-query or
suppressed
Igmp snooping query-interval The query interval of the vlan
Igmp snooping max reponse
time
The max reponse time of the vlan
Igmp snooping robustness The robustness of the vlan
Igmp snooping mrouter port
keep-alive time
The keep-alive time vlan of the vlan
Igmp snooping
query-suppression time
The query-suppression time of the vlan as a
l2-general-querier
IGMP Snooping Connect Group
Membership
The group membership of the vlan，that is the
corresponding relationship between the port and（S,G）.
Igmp snooping vlan 1 mrouter
port
The mrouter port of the vlan, including static and
dynamic.
11.4.1.3 show mac-address-table multicast