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Questions tagged [nlb]

Network Load Balancing (NLB) is a component in Windows Server operating systems that load balances network traffic (sent to a cluster virtual IP address) among multiple servers in an NLB cluster.

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Stop single NLB node at command line

We have a NLB cluster set up for our public web servers. I'm trying to stop the "localhost" in the cluster from the command line using NLB.EXE. When I write "nbl stop" it seems that all nodes are stopped but I only want the local node (the server…
Patrik Hägne
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Occasional Timeouts with Zabbix agents behind an AWS Network Load Balancer

My architecture in AWS is as follows: There are 2 identical zabbix agents (based on zabbix/zabbix-agent:centos-4.0.11) each one running on a different EC2 instance. Zabbix server runs on a third instance (also dockerized with dockbix using 4.0…
dimisjim
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Does AWS NLB accept traffic with destination IP's different from it's own?

Looking at using NLB to load balance two L3 transparent appliances, both of which listen on port 8181. But traffic hitting those appliances have arbitrary destination IP's. When I created the NLB, its eni has source/dest IP checking disabled by…
user3290431
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Can't access EC2 instance, but not NLB in other VPC

I've recently started the process of switching from AWS ELB to NLB, and I'm facing some connectivity issues. We have 2 VPCs. In VPC1, both EC2 database servers, old ELB and NLB is located. In VPC2, we have some EC2 servers that connect to the…
Simon Fredsted
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Unable to access virtual IP after configuring NLB in windows 2008

I have Two webseervers(WS1, WS2). I have added NLB component on both the machines. In WS1, i have added a cluster with IP as (eg:xx.yy.zz.100) and added WS1, WS2 to the same cluster. Now i have deployed application in WS1& WS2 and tried accessing…
krish
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Dualstack support for IGMP multicast NLB on Windows 2016

I have two Windows 2016 VMs set up as an NLB cluster. Each guest has two interfaces, one of which is for the NLB, the other for other traffic. I've added an IPv4 and an IPv6 address to the cluster. Both are set up to use IGMP multicast, with no…
Morten Nilsen
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Windows NLB : Get-NLBClusterNode reports Invalid Data

I've setup a cluster of 2 Nodes using Windows Network Load Balancing feature. Everything is well setup, my cluster For moinitoring purposes, I'd like to get the status of the nodes within the cluster by using PowerShell. I've discovered this Nagios…
3isenHeim
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Network load balancer - scheduled host stop

I've three servers on a NLB Windows server 2012. At the moment each of these machines has a site with a scheduled app pool refresh which I want to handle by taking that node off line while the app pool refreshes and it then warms up. Is this…
Full Time Skeleton
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Setup Windows 2012 NLB with two internal servers

Im trying to setup a load balancing between two server on which a IIS website is running. I have a third server which actually is free to be used, i thought this one might be used to balance the load onto the first two. All servers have only one NIC…
NovumCoder
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Windows Server NLB vs hardware-based NLB

Can somebody with extensive experience explain me what are the selling points of hardware-based NLB over Windows NLB and what are major/main disadvantages of Windows NLB? I recently read through some materials which claim that Windows NLB is…
Mikhail
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MS Network Load Balancing crashes Hyper-V virtual host?

We have a strange problem with an interaction between our Hyper-V virtual host and the hosted virtual servers. Both virtual hosts and virtual servers are running Windows Server 2008. When a virtual server is added to a MS NLB instance, the entire…
Ryan Michela
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How much NICs for NLB (ISA-Server) / Best Practice?

I'm not familiar with Windows servers (I'm some kind of networking guy) but have to setup an ISA server from the networking point of view. It will connect an internal LAN to a DMZ. There will be a cluster of two ISA servers using NLB. Obviously, the…
PEra
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ARR Load Balance with two Machines - Always redirect to same Site

described steps for each setup. Created a sample Application WebShareTest , hosted the application in M1(IP 36) on port (80) and same Binary I hosted in M2(IP 210) (on port 8070) I pointed some domain name like my.joy to the machine M1 ip…
Akshay Joy
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How do I know which node in a cluster answers?

I have set up an NLB with two servers (nodes) which are running the same service. The filtering is single host, because I don’t want them to run at the same time, because there is data in the cache DB, so every time there is new data or a failover I…
Horaceman
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Two NLB mutlicast clusters on the same VLAN processing same traffic

I have an older ISA2006 based NLB cluster which I plan to migrate to a new TMG2010 NLB cluster. I need to have both clusters active for some time during migration (with different IPs of course). Both NLB clusters operate in multicast mode, and…
Youmoe
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