101
CAUTION:
On a multi-access network with more than one IGMP proxy device, do not enable multicast forwarding
on any other non-querier downstream interface after one of the downstream interfaces of these IGMP
proxy devices has been elected as the querier. Otherwise, duplicate multicast flows might be received
on the multi-access network.
Displaying and maintaining IGMP
To do... Use the command...
Display IGMP group information
display igmp [ all-instance | vpn-instance vpn-
instance-name ] group [ group-address |
interface interface-type interface-number ] [
static | verbose ] [ | { begin | exclude | include
} regular-expression ]
Available in any
view
Display the Layer 2 port information
of IGMP groups
display igmp group port-info [ vlan vlan-id ] [
chassis chassis-number slot slot-number ] [
verbose ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view
Display IGMP configuration and
operation information
display igmp [ all-instance | vpn-instance vpn-
instance-name ] interface [ interface-type
interface-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any
view
Display the information of IGMP
proxying groups
display igmp [ all-instance | vpn-instance vpn-
instance-name ] proxying group [ group-address
] [ verbose ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view
Display information in the IGMP
routing table
display igmp [ all-instance | vpn-instance vpn-
instance-name ] routing-table [ source-address [
mask { mask | mask-length } ] | group-address [
mask { mask | mask-length } ] | flags { act | suc
} ] * [ | { begin | exclude | include } regular-
expression ]
Available in any
view
Display IGMP SSM mappings
display igmp [ all-instance | vpn-instance vpn-
instance-name ] ssm-mapping group-address [ |
{ begin | exclude | include } regular-expression
]
Available in any
view
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings
display igmp [ all-instance | vpn-instance vpn-
instance-name ] ssm-mapping group [ group-
address | interface interface-type interface-
number ] [ verbose ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view
Remove all the dynamic IGMP group
entries of a specified IGMP group or
all IGMP groups
reset igmp [ all-instance | vpn-instance vpn-
instance-name ] group { all | interface interface-
type interface-number { all | group-address [
mask { mask | mask-length } ] [ source-address [
mask { mask | mask-length } ] ] } }
Available in user
view