Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1242
  • Last Modified:

NLB priority

I have set up 2 W2K3 IIS servers running NLB.  Server 'IIS1' has the priority set as 1.  Server 'IIS2' has the priority set to 2.  However, unless I take IIS2 offline, it is the server that always takes the web page request.  Once I take it offline, it fails over to IIS1 without any problems.  

Shouldn't the IIS1 be the one that takes the request since it's priority is set to 1?  I tried reversing the order, and still IIS2 is the dominant one.  Is this typical?  In reality, it doesn't really matter, I suppose.  It could be a misconfiguration issue on my part, as this is the first time I've tried to set this up.  Any insight would be appreciated.
0
bleujaegel
Asked:
bleujaegel
2 Solutions
 
canaliCommented:
Priority (unique host identifier) – Each host requires a unique priority ID (max 32 ).
This host ID is used to control individual hosts remotely (ex. to stop in safe mode the node 2: nlb drainstop 2)
It is also used to modify the MAC address that this host sometimes uses in response to clients making a connection.
It is used to determine which host (the host with the lowest ID) is to accept inbound connections in an N-1 failover configuration
for blancing the connecction lbetween IIS1 & IIS2 look Port Rule
http://www.sqlsoft.com/public/newsletter/0508/0508_Cluster.html?REF=AUG05NEWS

Gas
0
 
bleujaegelAuthor Commented:
So theoretically, the IIS1 should always receive the inbound connection attempt since it's priority is set to 1.  However, it is not.  Have you run into this before?
0
Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

 
NJComputerNetworksCommented:
Host Parameters
The “Host Priority” is a unique number assigned to each server in the cluster. This number (an integer) identifies the node in the cluster and determines the order in which traffic is delivered to the servers by default. The priority is organized by lowest to highest with the lowest number handling all traffic not otherwise handled by the set of load balancing rules.

http://www.brianmadden.com/content/content.asp?id=278
0
 
canaliCommented:
Change port rule , disable affinity and look
I have 2 web server in nlb with high traffic, looking the size of log files (quite similar) seems everithing equally balanced, some time ago I tryed to understand how the traffic was switched, but I had too much connections and I never found something explain the balancing algorithm (round robin??)

Gas
0
 
gfadminCommented:
Im running into the same thing and I am having some trouble figuring it out. I want IIS1 to always handle all traffic unless it fails. However if i reboot IIS2 when it comes back up all requests are sent to it unless i manually fix it. Is there a way to script this or change a setting that would make IIS1 primary always even if i reboot IIS2?
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now