QinQ support and Source optimization

[JimmyBjorklund]

Summary

QinQ support and Source optimization

Details

1. This QinQ extension handels both the inner an outer vlan tags and exports them as:

DOT1Q_VLAN_ID
DOT1Q_CUSTOMER_VLAN_ID

2. Source Optimization, ignores the source port and treat all flows to the same destination as one.
   This reduces the amount of records produced as all source ports will have source set to 0.

[SiskaPavel]

2. Source Optimization, ignores the source port and treat all flows to the same destination as one.
   This reduces the amount of records produced as all source ports will have source set to 0.

Hi, what is the intended use case and motivation for this optimization?

[JimmyBjorklund]

In our case we are only interested in the destination and we can save a lot of records by consolidating all sources into one record. What it does is setting all incoming packets source to 0. Jimmy Sent from Outlook for iOS<https://aka.ms/o0ukef>

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________________________________ From: Pavel Šiška ***@***.***> Sent: Friday, January 16, 2026 1:16:59 PM To: CESNET/ipfixprobe ***@***.***> Cc: Jimmy Björklund ***@***.***>; Author ***@***.***> Subject: Re: [CESNET/ipfixprobe] QinQ support and Source optimization (PR #316) [https://avatars.githubusercontent.com/u/22457246?s=20&v=4]SiskaPavel left a comment (CESNET/ipfixprobe#316)<#316 (comment)> 1. Source Optimization, ignores the source port and treat all flows to the same destination as one. This reduces the amount of records produced as all source ports will have source set to 0. Hi, what is the intended use case and motivation for this optimization? — Reply to this email directly, view it on GitHub<#316 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ACH2DYLVAUGLAVWTQGTTVXD4HDJDXAVCNFSM6AAAAACOSZEQX2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTONJZG43TKNZQGA>. You are receiving this because you authored the thread.Message ID: ***@***.***>