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This is a Building Block document

Document icon BT Distribution Version: 0.2 OIAr logo
Document type: Building Block Type Owner:

S.A.D. Jumelet

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This Building Block Type belongs to Working Area Network (NW). Distribution is a facility that offers data transport between two or more (logical and/or physical) data transport segments. This is accomplished by performing one or more of the following actions on data packets:

  • Routing and forwarding;
  • Address translation (manipulation of the source or destination address that's located in the packet headers);
  • Media translation (changing the encapsulation type of data packets).

Optionally, forwarding decisions can be based not only on address information, but also on filtering criteria. However, for practical reasons this functionality is described in and assigned to the Building Block Type Traffic Filtering.

Examples of devices that perform Distribution functions are:

  • Multilayer switches
  • Routers
  • SAN Directors.


The icon below can be used to represent this infrastructure function in graphical Pattern representations that it might be part of:

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Variants of this Building Block Type

The following variants of this function have been defined:

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Semantic query

No Pattern Variants based on this Pattern Type (yet)

Pattern Types using this Building Block Type

The following Pattern Types use this function:

Semantic query
Semantic query
Pattern VariantBrief DescriptionOwnerMaturity
PAT.Access DistributionAccess DistributionJ.A.H. Schoonderbeek3
PAT.Data TransportData TransportJ.A.H. Schoonderbeek2
PAT.Data Zone ProtectionData Zone ProtectionJ.A.H. Schoonderbeek3