In this section:
Overview
The Capabilities Exchange Request (CER) Parameter Set object is used to configure the parameters used in CER and Capabilities Exchange Answer (CEA) messages during the capabilities exchange procedure that is performed when a Diameter connection is first established.
This parameter set may also be used to configure an override of the Local Diameter ID on a given node, effectively allowing a single DSC Node to act like more than one logical Diameter Node. Incorrectly configuring the Local Diameter ID Override results in error (see Error Scenario Examples for Configuring the Local Diameter ID).
Note
The Local Diameter ID Override may not match the Adjacent Diameter ID of an ADN in that DSC Node.
Note
The CER Supported Vendor ID parameter can be defined in the CER Parameter Set object. The new parameter contains the Vendor ID attribute defined in the DSC definitions and specifies the vendor ID to be sent in the CER and CEA messages.
To create a CER Parameter Set
To configure a CER Parameter Set
Possible Errors in Configuring the Local Diameter ID
Incorrectly configuring the Local Diameter ID results in the errors as detailed in this section.
Consider the following CER Parameter Sets:
| Name | Local Diameter ID Override |
|---|---|
| foo | foo.sonusnet.com |
| bar | bar.sonusnet.com |
| default |
Scenario 1
Do not configure an ADN Connection with a CER Parameter Set that has a Local DID Override equal to any existing ADN DID given that this later has an ADN Connection defined.
For example,
| Steps | ADN DID | ADN Connection | CER Parameter Set |
|---|---|---|---|
| 1 | foo.sonusnet.com | 1 | default |
| 2 | bar.sonusnet.com | 1 | trying to configure to foo fails |
| Steps | ADN DID | ADN Connection | CER Parameter Set |
| 1 | foo.sonusnet.com | NONE | N/A |
| 2 | bar.sonusnet.com | 1 | Trying to configure to foo succeeds |
Scenario 2
Do not create an ADN Connection for an ADN if the DID of this ADN is already used as the Local DID Override of a CER parameter Set used in an ADN Connection of another ADN.
For example,
| Steps | ADN DID | ADN Connection | CER Parameter Set |
|---|---|---|---|
| 1 | foo.sonusnet.com | 1 | bar |
| 2 | bar.sonusnet.com | Trying to create an ADN Connection fails | N/A |
Scenario 3
Do not configure an ADN Connection with a CER Parameter Set that has a Local DID Override equal to its ADN's DID.
For example,
| Steps | ADN DID | ADN Connection | CER Parameter Set |
|---|---|---|---|
| 1 | foo.sonusnet.com | 1 | Trying to configure to foo fails |
Overview
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