Core IP Routing and Switching Technology - Cvt-dallas.org
Core IP Routing and Switching Technology - Cvt-dallas.org
Core IP Routing and Switching Technology - Cvt-dallas.org
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Next Generation Backbone<br />
Network Issues - 1<br />
• Truly scalable, reliable packet routers not available<br />
– Clustered routers used for scale today<br />
–Duplicatedrouters used for redundancy today<br />
→ Scalable, reliable router needed<br />
• Protection of simplified spans requires networkwide<br />
solution<br />
– Several approaches:<br />
– Link:<br />
– Protection in the network elements (works also<br />
for legacy spans), ~MPLS-FRR<br />
–Mesh:<br />
– Optical Crossconnect<br />
– Electrical Crossconnect<br />
–MPLS, GMPLS<br />
7
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