Huawei SmartAX MA5612 - Page 165

Possibl
e
Cause
Judgment Criterion Troubleshooting Method
There
are too
many
prejoine
d static
progra
ms,
occupyi
ng too
many
The prejoined static programs occupy
too many bandwidths, which is close to
the maximum downstream bandwidth
of multicast programs provided by the
PON port.
l You can obtain the bandwidth of
prejoined static programs following
the steps below:
a. On the ONU, run the display
igmp program all command to
query the prejoin attribute
(Prejoin) of the program.
b. Calculate the bandwidth of
prejoined static programs
(Prejoin is enable) according to
the data plan. For example, if
100 programs are enabled with
the prejoin function and the
bandwidth of each program is 5
Mbit/s, the total bandwidth of
the prejoined static programs is
500 Mbit/s.
l You can obtain the maximum
downstream bandwidth of multicast
programs provided by the PON port
following the steps below:
a. On the OLT, run the display
igmp config global command to
query the bandwidth
management function
(Bandwidth management
switch).
b. On the OLT, run the display
igmp bandwidth port
command to query the
bandwidth (Max bandwidth)
assigned to the PON port.
– If Bandwidth management
switch is disable, the OLT does
not perform the multicast
bandwidth management. The
maximum bandwidth is the
maximum downstream
transmission rate supported by
the PON line.
On the ONU, run the
igmp
program modify command to
modify Prejoin to disable and then
order the program again.
SmartAX MA5612 Multi-service Access Module
Maintenance Guide
5 Troubleshooting Services Transmitted Through a GPON
Port
Issue 01 (2012-07-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
156