| Description | This table defines allocation of virtual bandwidth pool for
the traffic classes. Basically there are two types of bandwidth
pool, Physical & Virtual. Physical bandwidth is the egress
interface bandwidth. It is not supported and will not be
explained more.
Virtual bandwidth is user defined bandwidth. Virtual bandwidth
provides an easy and flexible way to implement bandwidth pool
for call admission control to avoid physical bandwidth
limitations. In contrast to per-interface based physical
bandwidth management, Virtual bandwidth management is per-APN
based, that is, each APN has its own pool to admit request.
To use this type of bandwidth, user needs to make assumption of
what interface type and total bandwidth of Gi and Gn in both
directions to allocate bandwidth for each class.
The SNMP entity creates a conceptual row when the user
configures the bandwidth pool with some bandwidth value in the
range described in cggsnUmtsQosCacBWPoolBWVal.
The SNMP entity deletes the conceptual row, when the user
deletes the bandwidth pool. However, if the bandwidth pool is
associated with an APN or if bandwidth is currently been
utilized, then the conceptual row cannot be deleted.
The SNMP entity modifies the conceptual row, when the user
changes the bandwidth value. However, if any PDP context is
active in the APN using this pool, then the bandwidth value
can be changed to higher than the previously configured. |