3com S7906E 설치 설명서

다운로드
페이지 2621
 
1-19 
To do… 
Use the command… 
Remarks 
Enter interface view 
interface interface-type 
interface-number
 
— 
Enable multicast forwarding on a 
non-querier downstream interface 
igmp proxying forwarding 
Required 
Disabled by default. 
 
 
On a multi-access network with more than one IGMP proxy device, you cannot 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 may be 
received on the multi-access network.  
 
Displaying and Maintaining IGMP 
To do... 
Use the command... 
 
Display IGMP multicast group 
information  
display igmp all-instance | vpn-instance 
vpn-instance-name ] group [ group-address 
interface interface-type interface-number ] 
static verbose 
Available in 
any view 
Display information about Layer 2 
ports for IGMP multicast groups 
(on a distributed IRF device) 
display igmp group port-info [ vlan 
vlan-id ] [ chassis chassis-number slot 
slot-number ] [ verbose ] 
Available in 
any view 
Display layer 2 port information for 
IGMP multicast groups (on a 
distributed device) 
display igmp group port-info [ vlan 
vlan-id ] [ slot slot-number ] [ verbose ] 
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 ] 
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 ] 
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 } ] 
Available in 
any view 
Display IGMP SSM mappings 
display igmp [ all-instance | vpn-instance 
vpn-instance-name ] ssm-mapping 
group-address 
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 ] 
Available in 
any view