NLB cluster: Single Host vs Multiple Host with Single Affinity

InfoTechdude 156 Reputation points
2020-09-29T12:53:24.007+00:00

Hello,

Can somebody (pin-?)point the differences between Single Host vs Multiple Host with Single Affinity. They seem to be similar in a way. Also: What configuration needs to be done on IIS SRV concerning NLB cluster?

29183-nlb.jpg

Thanks!

Windows Server 2012
Windows Server 2012
A Microsoft server operating system that supports enterprise-level management, data storage, applications, and communications.
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Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
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  1. Candy Luo 12,656 Reputation points Microsoft Vendor
    2020-09-30T06:20:52.327+00:00

    Hi ,

    Single host :This parameter specifies that network traffic for the associated port rule be handled by a single host in the cluster according to the specified handling priority. This filtering mode provides port specific fault tolerance for the handling of network traffic.

    Single affinity refers to load balancing based on the source IP address of the incoming connection. It automatically redirects all requests from the same address to the same cluster member.

    If you are using network load balancing and you want to direct multiple requests from the same IP address to the same cluster host, then you need to use Single Affinity.

    For more details, please refer to the following article:

    Network Load Balancing parameters

    Also: What configuration needs to be done on IIS SRV concerning NLB cluster?

    It seems this question is related with IIS part which our forum doesn't focus on, you might have this asked in IIS forum for better answers.

    Here is the link:

    https://forums.iis.net/

    Best Regards,

    Candy

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