Post on 08-Apr-2015
HUAWEI TECHNOLOGIES Co., Ltd.
www.huawei.c
om
GPON Multicast Solution
19th Nov 2007
Jack ZhuSenior Product manager
Huawei Technologies Co. LtdPage 2
Multicast Principle
Line Card
Port 1 Port 2 Port 3
Group A Yes No Yes
Group B No Yes Yes
Multicast Table
• IGMP: Internet Group Management Protocol• System maintain the Multicast table through IGMP Snooping/Proxy • System duplicate the Multicast flow base on Multicast table
Join Leave
Query
Backhaul
Switch Card
Huawei Technologies Co. LtdPage 3
Line
Card
ONT
CP_A
STB
STB
CP_A
CP_B
Duplicate to Card
Multicast in GPON Solution
ONT
STB
STB
CP_A
CP_B
Line
Card
IGMP Proxy
CP_B
Group VLAN A
Group VLAN B
IGMP Snooping
Duplicate to Port Duplicate to Port
GEM_Port_4095X
Join
Leave
• Define Multicast Group VLAN for each CP users (virtual VLAN)
• Multicast flow map to GEM_Port 4095 and broadcast to all ONT in that fibre.
• ONT pick up the right channel based on multicast table.
• IGMP Proxy in OLT and IGMP Snooping in ONT to maintain multicast table.
Huawei Technologies Co. LtdPage 4
Line
Card
ONT
CP_A
STB
STB
CP_A
CP_B
Duplicate to Card
GPON Multicast Solution
ONT
STB
STB
CP_A
CP_B
Line
Card
IGMP Proxy
CP_B
Group VLAN A
Group VLAN B
Maintain table through OMCI
Duplicate to Port Duplicate to Port
GEM_Port_4095X
Join
Leave
• Maintain ONT Multicast table through OMCI.
• Reduce the ONT performance requirement and save the cost.
• Easy to achieve the controllable Multicast
OMCI
Huawei Technologies Co. LtdPage 5
IP Core
Multicast Server
Multicast stream
IGMP reportIP group: 1, 2, 3
Ch1Ch2Ch3
Ch1Ch2Ch3
Controllable multicastThrough Headend and STB security
system
Through access equipment control
Multicast user authentication
Channel profile binding with ONT port or
MAC/IP to prevent illegal access
Ch1Ch2
So interesting,
I want to join in.IGMP packet for joining group 3
IP group 1IP group 2
IP group 1IP group 2IP group 3
IGMP packet for joining group 3
Profile “Standard”:
Profile “Premium”:
Ch3 Before subscription, user could preview channel
Port binding with profile “Standard”, not permit this port to join group 3
Port binding with profile “Premium”,
permit this port to join group 3
Ch1Ch2
Ch1Ch2
Ch3
MA5600T
OSS
NMS
Meet customized requirements
Avoid revenue loss
Controllable Multicast
Huawei Technologies Co. LtdPage 6
Line
CardCP_A
Multicast Experience
ONT
STB
STB
CP_A
CP_B
Line
Card
OLT
CP_B
Group VLAN A
Group VLAN B
GEM_Port_4095 Join
Leave
• Performance: Need high capability in processing IGMP packets to reduce the zipping time.
• Need distinguish and record MAC address for IGMP Join/Leave process in case 2 STB connect to one interface.
• Some case need handle IGMP over PPPoE
hub
Thank You !