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HA Cluster how does it share the load?

StealthyM

Hello,

 

We are looking at getting 2 x SG 330 in a HA Cluster.

 

I would like to know, how does it determine to share the load? We will be using WAF, IPS and NAT Rules.

Is WAF protection compatible in a cluster and will it share the incoming load and inspection.

 

I have read guides on the internet, and it appears the MASTER is the in and outpoint for traffic, so how does it share its load?

 

Thank you



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  • 0

    Rather than an Active/Active cluster of two 330s, you might want to consider two 430s in Hot-Standby.  With Active/Active, you must, in effect, purchase subscriptions for both units.  With Hot-Standby, only a single subscription is needed.  That means the alternative I suggested costs about the same as what you're considering, but has the added benefit of full power should one of the two units fail.

    In any case, you should find a strong reseller in your area and have this discussion with them.  They also should be able to give a complete answer to your question here.

    Cheers - Bob

  • 0 in reply to BAlfson

    The issue is, we are coming from ASA. Now that was in a Active/Standy and the cut over time was near instant tanious. It kept all the session states and flipped over as if nothing ever happened.

     

    However, we run a pair in our office SG210 in a Active/Standby and we don't get the same results. However, the office is different as it has 2 different incoming ISP. Rather than the same one in our office.

     

    But yes, we need to determine if an Active/Cluster or Active/standby is the right choice.

  • 0 in reply to StealthyM

    We run ours in active/standby and it is instantaneous. You will drop 1 ping.

    If your internet connections are PPPoE, it will drop for a while until it authenticates again.

  • 0 in reply to Louis-M

    I disagree, I was downloading an ISO from Microsoft and I turned off the Primary UTM. The connection was reset and the download stopped.

     

    With it in a cluster, the connection was maintained and continued.

     

    With an ASA active/standby the connection is maintained and continues like nothing has happened.

     

    Can you test on yours?

  • 0 in reply to StealthyM

    I'll try and give it a shot during the week. I've not downloaded and tested it at the same time but I have on numerous occasions ran an active ping to 8.8.8.8 and watched them switch over and it's only ever dropped 1 ping every time.

  • 0 in reply to StealthyM

    VoIP calls and down/uploads will indeed be interrupted.

    Cheers - Bob

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