Avatar of sunhux
 asked on

Does MS Network Load Balancing NLB incur downtime when adding more servers vs F5 LB

If I currently has 3 Win 2008 servers under MS NLB & wishes to add another
Win 2008 (another Web IIS or App HL7 servers), does this require downtime
or it can be done seamlessly on-the-fly without service downtime.

I heard F5 LB doesn't require downtime & is seamless, is this true?
Windows NetworkingNetworkingMicrosoft Legacy OS

Avatar of undefined
Last Comment

8/22/2022 - Mon

Link below indicates downtime required with NLB changes:


Downtime required for configuring NLB is quite short (about 5 mins) but if it is production I suggest to take it down for 1h or more if environment is more complex. NLB requires also changes in AAM, DNS and some testing:)



A highly available system reliably provides an acceptable level of service with minimal downtime. To provide high availability, NLB includes built-in features that can automatically:

Detect and recover from a cluster host that fails or goes offline.

Balance the network load when hosts are added or removed.

Recover and redistribute the workload within ten seconds  <==

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Experts Exchange has (a) saved my job multiple times, (b) saved me hours, days, and even weeks of work, and often (c) makes me look like a superhero! This place is MAGIC!
Walt Forbes