O'Reilly logo

Optical Network Control: Architecture, Protocols, and Standards by Debanjan Saha, Bala Rajagopalan, Greg Bernstein

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

11.1. Introduction

As each connection request is presented to an optical network, a route is calculated and a path is selected through the network from the source to the destination. Path selection in optical networks can be contrasted with the procedure used in IP networks. In IP networks, each router independently makes a forwarding decision based on the destination address of each packet. This independence of routing decision at each network node may result in routing loops (see Chapter 9). Thus, to avoid loops, all the routers in a network are required to have identical topology information and use the same algorithm for route computation. Routing loops are not an issue in connection-oriented networks, where connection routes are explicitly ...

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