Skip to main content

By default, WAN edge routers try to form overlay tunnels to every received TLOC from a different site using every available local color. That is usually the desired behavior in scenarios with multiple Internet connections from various ISPs because the Internet provides any-to-any reachability irrespective of the particular ISP. However, this behavior might not be desirable in scenarios where we have private transport alongside the Internet. 

Locked digital content

Digital Book Access

For now, the digital version of this book is available only to active subscribers and readers who own a paperback copy.

The ability to buy the digital copy directly is coming soon.

  • Subscribers can access the full digital version as part of their membership.
  • Paperback owners can access the digital version using the instructions provided in the book.