tIPv6ExceptionId

Represents a filter Id. Any value greater than 65535 indicates a
filter that was created (auto-generated) by the system.
          
- The range 0x01000000 through 0x0100FFFF indicates a filter used for
  BGP Flow-Spec. In this case, the last 15 bits indicate the value of
  the vRtrID where the filter is active. Values higher than 0x01008000
  represent flowspec group filters.
          
- The range 0x03000000 through 0x0300FFFF indicates a filter used for
  Open-Flow.
          
- The range 0x20000000 .. 0x3FFFFFFF is used for handling filter rules
  (received from RADIUS) that are to be shared between users. The Id
  is encoded as follows:
  - the highest 3 bits (0b001) indicate that it is an auto-generated
    shared filter
  - the subsequent 13 bits indicate which combination of filter rules
    are inserted; this corresponds to the second number in the filter
    Id as displayed in CLI: the '1' in the example '9:1'
  - the subsequent 16 bits indicate the base filter Id; this
    corresponds to the first number ('9') in  '9:1'
          
- The range 0x10000000 .. 0x1FFFFFFF is used for handling filter
  flow-rules (received from DIAMETER) that are to be shared between
  users. The Id is encoded as follows:
  - the highest 4 bits (0b0001) indicate that it is an auto-generated
    flow-rule filter
  - the subsequent 12 bits indicate which combination of flow-rules are
    inserted; this corresponds to the second number in the filter Id as
    displayed in CLI: the '2' in the example '9:P2'
  - the subsequent 16 bits indicate the base filter Id; this
    corresponds to the first number ('9') in the example '9:P2'
          
- The range 0x04000001 .. 0x0400FFFF (67108865..67174399)
  indicates a filter managed by a VSD controller. In this case
  the last 16 bits indicate the ID of the VSD filter.