[Bro-Dev] [JIRA] (BIT-1363) Clustered AF_PACKET support

Michal Purzynski (JIRA) jira at bro-tracker.atlassian.net
Tue Sep 8 15:04:00 PDT 2015


    [ https://bro-tracker.atlassian.net/browse/BIT-1363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=22004#comment-22004 ] 

Michal Purzynski commented on BIT-1363:
---------------------------------------

How are you testing it?

Question: would the conn_state = SF and history = ShADadfR if packets went two different processes, each direction? I think not, and I use currently a clustered AF_PACKET on a stage system (bro-master) and that's how my connections look like.

Also, more "traditional' IDS like Suricata work really well with AF_PACKET clustering and yes, they are doing session reassembly - and each thread gets both directions.

Have you enabled clustering, actually?

> Clustered AF_PACKET support
> ---------------------------
>
>                 Key: BIT-1363
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-1363
>             Project: Bro Issue Tracker
>          Issue Type: New Feature
>          Components: Bro
>    Affects Versions: git/master
>            Reporter: Michal Purzynski
>
> Let's have a support for packet capture with the AF_PACKET sockets in multi worker configuration.
> Bro can use a single worker with af_packet, I have tested and it works, but having a direct support for multi-worker load balancing would allow to avoid the pf_ring for many deployments with the traffic level where DNA / ZC / Myricom / DAG is not required.



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