Q

What is a high availability VPN?

What is a high availability VPN?
Essentially, a highly available VPN is one where the VPN can quickly and easily recover from component failure, and continue to provide service. Of course, high availability is almost never a black or white sort of thing; there are always degrees of availability. How long does the VPN take to recover after a component has failed? What performance impact does the insertion of high availability intelligence introduce? What is the visible impact upon a connected user after a failover has taken place?

Since performance is also a factor in availability, load balancing may also be a requirement in building a highly available VPN.

As with all highly available solutions, a balance must be made between the level of availability required and the cost of implementing the solution. The cost could be monetary, but it could also take the form of slower performance, user inconvenience, implementation downtime, or in some other way. Each of these forms can also be expressed in terms of money, of course.

This was first published in June 2004

Dig deeper on Storage Resources

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSolidStateStorage

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

Close