O'Reilly logo

OSPF and IS-IS: Choosing an IGP for Large-Scale Networks by Jeff Doyle

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

9.3. Designing for Security and Reliability

The bulk of this chapter focuses on features of and extensions to OSPF and IS-IS that contribute to security and reliability. However, the features and extensions examined here can protect your network only from the potentially negative influences that these two protocols can have. So many other things can go wrong that tightly securing your IGP while ignoring wider vulnerabilities is a bit like locking the door but leaving the windows wide open. Therefore, the remainder of this chapter provides an overview of wider factors to consider for ensuring a secure, reliable network. This section examines good design practices, and Section 9.4 examines good operational practices.

9.3.1. Redundancy

I recently ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required