Transmission Control Protocol (TCP) Connections via Internet Protocol Front End (IPFE) Send REBOOTING To virtual Diameter Routing Agents (VDRAs)
(Doc ID 2793219.1)
Last updated on OCTOBER 21, 2022
Applies to:
Oracle Communications Diameter Signaling Router (DSR) - Version DSR 8.3.0 and laterInformation in this document applies to any platform.
Symptoms
Diameter Signaling Routers(DSRs) send REBOOTING on IPFE connections to vDRAs after Capabilities Exchange Request (CER)/(Capabilities Exchange Answer (CEA):
- Both ends sends the Rebooting
- Some connections takes several minutes to established
- After the Maximum Transmission Unit (MTU) was standardized to 1500, some connections were established successfully as expected but other still are affected.
- IPFE selects the Message Processor (MP) based on the least used algorithm, hence, connections will move to a different MP.
Events reported:
The affected connections are unstable. Two cases:
a. The connection is restarted by remote peer after more than 1 minute.
b. The connection is restarted by local peer after few milliseconds.
This is a Responder only connection mode.
1. From the first trace provided and filtering by Diameter protocol:
Frame 18: CER
Attribute-Value Pair: Host-IP-Address(257) l=14 f=-M- val=X.X.X.233
Frame 26: CEA is send by the DSR:
Attribute-Value Pair: Host-IP-Address(257) l=14 f=-M- val=Y.Y.Y.6
Attribute-Value Pair: Result-Code(268) l=12 f=-M- val=DIAMETER_SUCCESS (2001)
Product-Name: Eagle XG DSR
Frame 42: Disconnect-Peer Request (DPR) is received from the remote peer
Attribute-Value Pair: Disconnect-Cause(273) l=12 f=-M- val=REBOOTING (0)
Frame 43: Disconnect-Peer Answer (DPA)
Frame 57: CER from remote peer
Frame 68: CEA
Frame 69: DPR is send by the local peer
Frame 70: DPA
Frame 73: CER from remote peer
Frame 76: CEA
Frame 77: DPR from remote peer
Frame 84: DPA
2. On the second trace name provided and filtering by Diameter protocol:
Frame 20: CER from remote peer
Attribute-Value Pair: Host-IP-Address(257) l=14 f=-M- val=X.X.X.233
Frame 30: CEA is send by the DSR:
Attribute-Value Pair: Host-IP-Address(257) l=14 f=-M- val=Y.Y.Y.6
Attribute-Value Pair: Result-Code(268) l=12 f=-M- val=DIAMETER_SUCCESS (2001)
Product-Name: Eagle XG DSR
Frame 40: DPR is received from the remote peer
Attribute-Value Pair: Disconnect-Cause(273) l=12 f=-M- val=REBOOTING (0)
Frame 43: DPA
Frame 59: CER from remote peer
Frame 61: CEA
Frame 72: DPR from remote peer
Frame 79: DPA
Changes
New implementation on two mate DSRs totaling 32 connections.
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |