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Administration Guide › Set Up Distribution and Routing › How Routing or Chaining Works › Example: Routing an Update Request

Example: Routing an Update Request

The following diagram shows five DSAs that control a single namespace. Each DSA controls a portion of the namespace, represented by its prefix, and a relationship with the other DSAs in the domain.

In the following diagram, DSA 1 is the superior of DSA 2 and DSA 3. DSA 4 and DSA 5 are subordinates of DSA 3:

How chaining works in a backbone with five DSAs, each controlling a portion of the namespace

  1. A client sends a request to DSA 2, to modify the phone number of the entry cn=Milio GILMORE,ou=Legal,ou=Corporate,o=DEMOCORP,c=AU.
  2. When DSA 2 cannot handle the request, it routes (forwards) the request to DSA 5 using the shortest path routing.
  3. DSA 5 modifies the phone number, and sends a confirmation response back to DSA 2.
  4. DSA 2 sends the response to the client.