The tmnxCpmProtPolTable has an entry for each CPM Protection policy
configured in the system. There are two default policies.
CPM Protection policy (254) is the default Access CPM Protection
policy. CPM Protection policy (255) is the default Network CPM
Protection policy.
The default CPM Protection policies are created by the system,
and can be modified but cannot be destroyed.
This object is not supported on SR-1 and ESS-1, where the
value of TIMETRA-CHASSIS-MIB::tmnxChassisType is '5',
and 7710, where the value of TIMETRA-CHASSIS-MIB::tmnxChassisType is
'7' or '9'.