O'Reilly logo

Performance and Fault Management by James M. Thompson, Kent J. Phelps, Robert L. Pavone, Christopher E. Elliott, Paul L. Della Maggiora

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

Chapter 2. Policy-Based Network Management

Routers have become quite complex when compared to their original task of simply routing. To name a few features: routers now provide QoS, firewall, packet-encryption, tunneling, filtering and web-caching capabilities. These features require that multiple routers be configured similarly in order to be able to deliver a consistent level of capabilities. If QoS packet coloring and queuing features, for example, are not implemented consistently through your network, packets will not be colored and queued similarly as they travel through the network.

Likewise, Layer 2 LAN switches have become more complex since their original bridging intentions. Some Catalyst switches now make forwarding decisions based ...

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