3com 5500-ei pwr Installation Instruction

Page of 1072
 
14 
 
 
This feature is recommended in MFF networks only.  
For details about MFF, refer to ARP Operation.  
 
Configuring a Port as a Simulated Group Member 
Simulated joining in IGMP Snooping is implemented in the same way as in IGMP except that IGMP 
Snooping establishes and maintains IGMP Snooping entries.  
Enabling simulated joining in VLAN interface view 
Follow these steps to enable simulated joining in VLAN interface view: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view — 
Enter VLAN interface view 
interface Vlan-interface interface-number 
— 
Enable simulated joining 
igmp host-join group-address source-ip 
source-address port interface-list 
Required 
Disabled by 
default 
 
Configuring simulated joining in Ethernet port view 
Follow these steps to configure a port as a simulated group member:  
To do... 
Use the command... 
Remarks 
Enter system view 
system-view 
— 
Enter Ethernet port view 
interface interface-type 
interface-number
 
— 
Configure the current port as a 
simulated multicast group 
member 
igmp host-join group-address 
source-ip source-address vlan vlan-id 
Required 
Simulated joining is 
disabled by default. 
 
  
Before configuring a simulated host, enable IGMP Snooping in VLAN view first.  
The port to be configured must belong to the specified VLAN; otherwise the configuration does not 
take effect. 
You can use the source-ip source-address command to specify a multicast source address that the 
port will join as a simulated host. This configuration takes effect when IGMPv3 Snooping is enabled 
in the VLAN.