This attribute controls the percentage of trunk bandwidth which
may be reserved by outgoing path oriented traffic on the trunk. The
sum of requiredBandwidth attributes for all paths on this trunk must
not exceed this attribute. Setting this attribute to zero (0) prevents
paths from being established on this trunk. The limit of reserved
bandwidth for incoming path oriented traffic is set using the same
attribute on the trunk component on the other end of the trunk. If
this attribute is set to 100% connectionless traffic is given a
minimum of 1Kbit per second for administrative traffic. This
attribute may now be changed without the trunk being restaging. If
the value is decreased calls may be bumped as necessary to free up
bandwdith. Increasing the value will have no impact on existing
calls and new calls will be able to use the new bandwidth.