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with VBN build we can create/use /opt/aamp.cfg to force a specific profile.  The relevant configuration options are:

abr disable abr mode (defaults on)
default-bitratespecify initial bitrate while tuning, or target bitrate while abr disabled (defaults to 2500000)
default-bitrate-4kspecify initial bitrate while tuning 4K contents, or target bitrate while abr disabled for 4K contents (defaults to 13000000)

For example:

```abr

default-bitrate=1200000```

Will disable abr and use the explicitly specified bitrate.


Bandwidth Throttling

To throttle the bandwidth, enable linux traffic control in the kernel using the tc utility. (This means one can change the bandwidth throttling fair easily from a terminal / script.)

In a terminal, initialize traffic control with a bandwidth of 15000kbit:

modprobe ifb
ifconfig ifb0 up
 
tc qdisc add dev eth0 ingress
tc filter add dev eth0 parent ffff: protocol all u32 match u32 0 0 action mirred egress redirect dev ifb0
 
tc qdisc add dev ifb0 root handle 1: htb default 1
tc class add dev ifb0 parent 1: classid 1:1 htb rate 15000kbit
(Here it is connected via ethernet but if its connected on wifi replace eth0 with wlan0, change it according to the interface in the device)

To drop the bandwidth to 5000kbit:

tc class change dev ifb0 parent 1: classid 1:1 htb rate 5000kbit


Review to refer => RDKAAMP-371