you can use the command below to check the HDTV bandwidth when you test HDTV channel. and another way to test, you can connect the STB to the upper layer switch, to check whether the HDTV work fine or not without GPON.
huawei#display multicast flow-statistic
{ index<K>|ip<K>|ipv6<K>|uplink-port<K>|vlan<K> }:vlan
{ vlanid<U><1,4093> }:1
{ ip<K>|ipv6<K> }:ip
{ ip-addr<I><X.X.X.X> }:224.1.1.1
{ <cr>|sourceip<K> }:
Command:
display multicast flow-statistic vlan 1 ip 224.1.1.1
y00140103 Post On 2014-03-26 01:38
Without GPON HDTV work fine.
When bitrade ~ "Multicast flow statistic result: 9072(kbps)" i see "freeze image".
When "Multicast flow statistic result: 7696(kbps)" work fine.
That IGMP Realtime Traffic for my HD Chanel 8)

SDTV bitrade ~ 2984(kbps) - 3112(kbps).
I use IGMP Snooping.
DBA Profile on T-CONT:
T-CONT type = Maximum Bandwidth
Maximum Bandwidth (kbit/s) = 32768
On Service Port
traffic profile:
Name = FTTx
Alias =
CIR (kbit/s) = 20480
CBS (bytes) = 657360
PIR (kbit/s) = 40960
PBS (bytes) = 657360
Outer Priority = 1
Outer Copy Priority = Assign Priority
Inner Priority = 0
Inner Copy Priority = Assign Priority
Index of Inner Priority Mapping Profile = 1
Priority Policy = Tag-In-Package
Traffic Color Mode = color-blind
Where can be the problem i don`t know 8(