tmnxMcPathBdlChlKAOverrideTimer
1.3.6.1.4.1.6527.3.1.2.54.9.1.30
The value of tmnxMcPathBdlChlKAOverrideTimer specifies the time,
in seconds, used to override the keep alive timer for all (S,G)
entries that fall under a channel (a group or a group range) except
for (S,G) entries where Keep Alive Timer Override is also configured
under the source-override.
If the value of this object is set to '0', then Keep Alive Timer
Override for the channel is disabled.