Re: [Dime] End-to-End Identifier Header || RFC 6733

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Hi Diaa,

The E2E Id is only unique for the sender not for the receiver. It is the reason the tuple [E2E Id | Diameter Id] is used to uniquely identify a message.
"Retransmitted messages" are identical to the messages previously sent. They are messages in the a pending message queue, for which no answer has been received. Therefore they will havethe same E2E Id and the same Origin-Host (Diameter id).

I Hope that this answer to your question.

Regards,

Lionel



Orange Restricted
De : DiME <[e-mail]> De la part de Diaa Saied
Envoyé : lundi 3 juillet 2023 13:49
À : [e-mail]
Cc : Zhouxiaoyun (Yun) <[e-mail]>; Zhangxuefei(Xuefei) <[e-mail]>
Objet : [Dime] End-to-End Identifier Header || RFC 6733

Dears,

This is Diaa from Huawei Telecommunications company and I have inquiry about the End-to-End Identifier Header in the diameter message as it's not stated clearly whether the End-to-End Identifier shall be unique on every request including the retransmitted requests or only unique for each new generated request and the retransmitted ones use the same End-to-End identifier, and below I put two snapshots; one from clause#3 (Diameter Header) [left picture] and one from clause#5.5.4 (Failover and Failback Procedures) [right picture] as both mentioned the End-to-End Identifier but in different ways, so please need to know what the standard means exactly in case of retransmission in terms of assigning the End-to-End Identifier

[cid:image001.jpg@01D9AE9E.0719FDF0]              [cid:image002.jpg@01D9AE9E.0719FDF0]

BR..
Diaa Said
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