Overview - Cisco Nexus 7000 Series Configuration Manual

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .

Overview

This chapter introduces the underlying concepts for Layer 3 unicast routing protocols in Cisco NX-OS.
This chapter includes the following sections:
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Information About Layer 3 Unicast Routing
Layer 3 unicast routing involves two basic activities: determining optimal routing paths and packet
switching. You can use routing algorithms to calculate the optimal path from the router to a destination.
This calculation depends on the algorithm selected, route metrics, and other considerations such as load
balancing and alternate path discovery.
This section includes the following topics:
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OL-20002-02
Information About Layer 3 Unicast Routing, page 1-1
Routing Algorithms, page 1-8
Layer 3 Virtualization, page 1-10
Cisco NX-OS Fowarding Architecture, page 1-10
Summary of Layer 3 Unicast Routing Features, page 1-13
Related Topics, page 1-15
Routing Fundamentals, page 1-2
Packet Switching, page 1-2
Routing Metrics, page 1-3
Router IDs, page 1-5
Autonomous Systems, page 1-5
Convergence, page 1-6
Load Balancing and Equal Cost Multipath, page 1-6
Route Redistribution, page 1-6
Administrative Distance, page 1-7
Stub Routing, page 1-7
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
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C H A P T E R
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