3Com 5500 SI - Switch - Stackable, Configuration Manual

Page: 318 / 686

318 C
HAPTER
18: M
ULTICAST
P
ROTOCOL
Perform the following configuration in system view.
By default, the port aging time is 105 seconds.
Configuring Maximum Response Time
Use the commands in Table 312 to manually configure the maximum response time.
If the Switch 5500 receives no report message from a port within the maximum
response time, the switch will remove the port from the multicast group.
Perform the following configuration in System View.
By default, the maximum response time is 10 seconds.
Configuring Aging Time of Multicast Group Member
Use the commands in Table 313 to manually set the aging time of the multicast group
member port. If the switch receives no multicast group report message during the
member port aging time, it will transmit the specific query message to that port and
start a maximum response timer.
Perform the following configuration in system view.
By default, the aging time of the multicast member is 260 seconds.
Enabling IGMP Fast
Leave Processing
Normally, when receiving an IGMP Leave message, IGMP Snooping does not
immediately remove the port from the multicast group, but sends a group-specific
query message. If no response is received in a given period, it then removes the port
from the multicast group.
Table 311 Configuring router port aging time
Operation Command
Configure router port aging time
igmp-snooping router-aging-time seconds
Restore the default aging time
undo igmp-snooping router-aging-time
Table 312 Configuring the maximum response time
Operation Command
Configure the maximum
response time
igmp-snooping max-response-time seconds
Restore the default setting
undo igmp-snooping max-response-time
Table 313 Configuring aging time of the multicast member
Operation Command
Configure aging time of the
multicast member
igmp-snooping host-aging-time seconds
Restore the default setting
undo igmp-snooping host-aging-time