Function Description
Multicast refers to the point-to-multipoint communication between a certain node and all other nodes in the network. The core of the multicast technology is to duplicate the packets at the place nearest to the receiver, thus lowering the multicast traffic on the network.Controllable multicast allows an access device to determine if a user has the authority to watch programs by identifying the user request packets. In this way, the access device controls and forwards the multicast services. The MA5680T/MA5683T/MA5608T provides the IPTV service by using the multicast technology. By using controllable multicast, the access device manages and controls multicast users. This helps to meet the requirements of the carriers for video services provisioning, and to enable the multicast services to be operable and manageable.
Function
This command is used to query broadcast cascading port information. To obtain
the information about the number of programs on the broadcast cascading port,
static join attribute, quick leave attribute, match mode, and control word in
the system, run this command.
Format
display igmp cascade-port { all |
frameid/slotid/portid }
display igmp cascade-port frameid/slotid/portid [ gemport gemport-id ]
display igmp cascade-port frameid/slotid/portid [ gemport gemport-id ]
Parameters
| Parameter | Description | Value |
|---|---|---|
| all | Indicates that the information about all IGMP cascade port is queried. | - |
| frameid/slotid/portid |
Indicates the subrack ID, slot ID, and port ID. Enter a slash (/) between the
subrack, slot, and port IDs. When you need to query the information about the
specified IGMP cascade port, use this parameter. You can query the program list on the cascade port. |
Please see Differences Between Shelves. |
| gemport gemport-id | GEM port number. GEM ports of each PON port are numbered in a centralized way. GEM ports 0-127 are reserved for the private use of OMCI and GEM ports 4000-4095 serve as channels for special use. | Numeral type. Range: 128-3999. |
Modes
Privilege mode, BTV mode, MVLAN mode
Level
Operator level
Usage Guidelines
- Run the config command to enter global config mode, and then run the btv command to enter BTV mode.
- Run the config command to enter global config mode, and then run the multicast-vlan command to enter MVLAN mode. Or in BTV mode, run the multicast-vlan command to enter MVLAN mode.
- The user of the lower-layer cascaded device can watch the program only when the program is added to the program library of both the upper-layer cascade device and the lower-layer cascaded device.
Example
To query the information about all multicast cascade ports, do as
follows:
huawei#display igmp cascade-port all
------------------------------------------------------------------------
Cascade Port | Active | Static | Quick | Mismatch | All-program
| program | join | leave | process | static-join
------------------------------------------------------------------------
0/9/0 0 enable disable transparent disable
------------------------------------------------------------------------
Total: 1
To query the information about GPON IGMP cascade port 0/3/0, do as follows:huawei#display igmp cascade-port 0/3/0 gemport 150 ------------------------------------------------- Cascade port : 0/3/0/150 Active program : 4 Static join : disable Quick leave : disable Mismatch process : transparent Control word : enable All-program static-join : - ------------------------------------------------- VLAN | IGMP | IGMP V2 router | Active | version |present timer(0.1s)| program ------------------------------------------------- 1 V3 0 4 ------------------------------------------------- Total: 1To query the information about multicast cascade port 0/19/0 when the system supports the IPv6 multicast feature, do as follows:
huawei(config-btv)#display igmp cascade-port 0/19/0 ---------------------------------------------------------------------------- Cascade port : 0/19/0 Active program : 4 Static join : disable Quick leave : disable Mismatch process : transparent Control word : enable All-program static-join : disable ---------------------------------------------------------------------------- VLAN | IGMP | IGMP V2 router |IGMP IPv6| IGMP IPv6 V1 router | Active | version |present timer(0.1s)| version | present timer(0.1s) | program ---------------------------------------------------------------------------- 1 V3 0 V2 0 4 ---------------------------------------------------------------------------- Total: 1
System Response
- The system displays the queried result when the command runs successfully.
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