Ask the Expert

What are concurrent tunnels?

"VPN allows up to 10,000 concurrent tunnels." This is a common phrase found in many technical manuals of networking companies. Please could you define the meaning of a "concurrent tunnel"? What does it mean when one opens 10,000 concurrent tunnels? Is one referring to opening 10,000 parallel tunnels or 10,000 simultaneous connections?

Requires Free Membership to View

These are concurrent PRIVATE tunnels. They are not connections but virtual network links that can have multiple TCP connections. The number 10,000 must be some type of address space maximum and I imagine the actual number is something other than 10,000 - which is EXACTLY the number of lakes in Minnesota too.

Marc Farley

Editor's note: Do you agree with this expert's response? If you have more to share, post it in our Storage Networking discussion forum.

This was first published in March 2002

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

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: