After the prejoin function is enabled, if the upper-layer multicast router does not support static
multicast entry forwarding, you need to enable the unsolicited report function of IGMP packets
so that the user can request for the program quickly. Generally, the upper-layer multicast router
processes the user request by responding to the group-specific query and the general query.
Procedure
Step 1
Enable the program prejoin function.
Run the
igmp program add ip ip-addr prejoin enable
command to enable the program prejoin
function.
By default, this function is disabled.
Step 2
After the program prejoin function is enabled, if the upper-layer multicast router does not support
static multicast entry forwarding, you need to enable the unsolicited report function of IGMP
packets.
l
Run the
igmp program add ip ip-addr unsolicited enable
command to enable the
unsolicited report function of IGMP packets. By default, this function is disabled.
l
Run the
igmp unsolicited-report interval
command to change the interval of the unsolicited
report of IGMP packets. By default, the time is 10s.
Step 3
Check whether the prejoin function is configured correctly.
l
Run the
display igmp program
command to query the status of the program prejoin function
and unsolicited report function.
l
Run the
display igmp config vlan
command to query the interval of the unsolicited report
of IGMP packets.
----End
Example
To enable the program prejoin function when adding a program whose IP address is 224.1.1.1,
do as follows:
huawei(config)#
multicast-vlan 10
huawei(config-mvlan10)#
igmp program add ip 224.1.1.1 prejoin enable
Result
Query the status of the program prejoin function and unsolicited report function.
huawei(config)#
display igmp program all
{ <cr>||<K> }:
Command:
display igmp program all
------------------------------------------------------------------------------
Index| Create | IP | Program |User |VLAN |Prejoin|Priority
| Flag | Address | name |num | ID | |
------------------------------------------------------------------------------
0 S 224.1.1.1 PROGRAM-0 0 10 disable 7
------------------------------------------------------------------------------
Total: 1 program(s) (Static/Dynamic: 1/0)
Note : # The program data is valid, but it is no license.
The queried program index is 0.
huawei(config)#
multicast-vlan 10
huawei(config-mvlan10)#
display igmp program index 0
{ <cr>||<K> }:
SmartAX MA5616 Multi-service Access Module
Configuration Guide
6 Configuring the Multicast Service (Multicast VLAN Mode)
Issue 04 (2011-10-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
195