Actually no, I was just stopping the web site. Is NLB that dumb, or does it 
depend on the port rules? I'm used to NetScalers and F5s, so maybe I'm 
expecting too much


Sent from my (new!) BlackBerry, which may make me an antiques dealer, but it's 
reliable as hell for email delivery :-)

-----Original Message-----
From: Miller Bonnie L. <[email protected]>
Sender: [email protected]: Thu, 6 Feb 2014 18:23:09 
To: [email protected]<[email protected]>
Reply-to: [email protected]
Subject: RE: [NTSysADM] NLB on Server 2012 R2

This may be a silly question, but are you also stopping that cluster node using 
the NLB manager MMC?  If you don't, then just stopping IIS doesn't tell the 
cluster that the server is down-it's not that smart.  It also will try to 
reconnect you to the same node, unless one is down, so I would expect that 
behavior.

I would be more concerned about your comment that shutting down server1 stops 
all of the traffic-at that point, it should recognize the node is offline and 
send people over to server2.  IME, with a web app, you do generally have to 
restart your session on the client (depending on how it's written).

-Bonnie

From: [email protected] [mailto:[email protected]] On 
Behalf Of James Rankin
Sent: Thursday, February 06, 2014 6:53 AM
To: [email protected]
Subject: [NTSysADM] NLB on Server 2012 R2

Anyone had any luck with configuring this? Must admit, I am an NLB-noob, so 
I've probably done something wrong....
Trying to configure an NLB cluster for an IIS-based app on Server 2012 R2.
Got two servers with the IIS app, Server1 and Server2
Configured an NLB cluster to load balance these called Cluster1
When both servers are up, everything seems to work fine. However, when I stop 
IIS on Server1, connecting to the Cluster1 DNS name just returns "page cannot 
be found". It's as if it always tries to connect to the original one it 
connected to.
I can connect to http://Server1/app and http://Server2/app just fine.
I can connect to http://Cluster1/app fine as long as both servers are up.
If I shut down Server1, I can no longer connect to http://Cluster1/app
What obvious thing should I be checking? There's not an awful lot of options to 
try with NLB - switching to Multicast seems to stop it working altogether :-(
I've also messed with various bits of IIS but given that both servers accept 
connections I don't really think it's related to that.
Give me a NetScaler any day over NLB!
TIA,



JRR

--
James Rankin
---------------------
RCL - Senior Technical Consultant (ACA, CCA, MCTS) | The Virtualization 
Practice Analyst - Desktop Virtualization
http://appsensebigot.blogspot.co.uk


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