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What is the role of diameter proxy agent?

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What is the role of diameter proxy agent?
posted Dec 22, 2014 by Vikram Singh

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2 Answers

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Diameter proxy agent is a diameter node which can modify a diameter message and its AVPs if some policies need to impose. A diameter proxy agent is also known as Diameter X agent where X denotes an application identifier. There are two other types of nodes are well known i.e. relay and re-direct nodes.

answer Dec 23, 2014 by Neelam
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on behaf of Bart (https://www.facebook.com/groups/LTE.Professionals/ )

Proxy Agent, similarly to Relay Agent, can redirect messages using the Diameter Routing Table. The difference is that Proxy Agent can modify the message content and, therefore, provide value-added services, enforce rules or perform administrative tasks for a specific realm.

answer Dec 23, 2014 by Salil Agrawal
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+2 votes

Please find the description of the problem:
A diameter client and server communicates in the network through Proxy Agent.
Here, I have assumed PCEF is a diameter client and PCRF is a diameter server. Interface between the PCEF and the PCRF is known as Gx.

Does Proxy agent, which sits between PCEF and PCRF, need to support Gx application ?
Does Proxy agent validate presence of any mandatory or optional AVP when it receives a message from a diamter client (PCEF) before forwarding it to diameter server (PCRF) ?

Can someone please provides the detailed behavior of a proxy agent ?

+3 votes

Do small network requires DEA, what are the pros and cons of having and not having one?

0 votes

When a Diameter Agent forwards a request to the next-hop, it adds Route-Record AVP to the message before forwarding. And it also stores the request and later uses those the stored request to forward back the answer to originator of the request.
I want to know what a Diameter agent does with the stored request if it reboots ?

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