Layer 3 Virtualization; Route Policy Manager; First-Hop Redundancy Protocols; Object Tracking - Cisco Nexus 3000 Series Configuration Manual
Nx-os unicast routing configuration guide,
nx-os release 5.0(3)u1(1)
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Also See for Nexus 3000 Series:
- Command reference manual (356 pages) ,
- Configuration manual (182 pages) ,
- Installation manual (112 pages)
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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 3 k - d o c f e e d b a c k @ c i s c o . c o m
Layer 3 Virtualization
Virtualization allows you to share physical resources across separate management domains.
Cisco NX-OS supports Layer 3 virtualization with VPN Routing and Forwarding (VRF). A VRF
provides a separate address domain for configuring Layer 3 routing protocols. For more information, see
Chapter 9, "Configuring Layer 3 Virtualization."
Route Policy Manager
The Route Policy Manager provides a route filtering capability in Cisco NX-OS. It uses route maps to
filter routes distributed across various routing protocols and between different entities within a given
routing protocol. Filtering is based on specific match criteria, which is similar to packet filtering by
access control lists. For more information, see
First-Hop Redundancy Protocols
A first-hop redundancy protocol (FHRP) allows you to provide redundant connections to your hosts. In
the event that an active first-hop router fails, the FHRP automatically selects a standby router to take
over. You do not need to update the hosts with new IP addresses because the address is virtual and shared
between each router in the FHRP group. For more information on the Hot Standby Router Protocol
(HSRP), see
Protocol (VRRP), see
Object Tracking
Object tracking allows you to track specific objects on the network, such as the interface line protocol
state, IP routing, and route reachability, and take action when the tracked object's state changes. This
feature allows you to increase the availability of the network and shorten recovery time if an object state
goes down. For more information, see
Related Topics
The following Cisco documents are related to the Layer 3 features:
•
•
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, NX-OS Release 5.0(3)U1(1)
1-14
Chapter 12, "Configuring HSRP."
Chapter 13, "Configuring VRRP."
Cisco Nexus 3000 Series NX-OS Multicast Routing Configuration Guide, Release 5.0(3)U1(1)
Exploring Autonomous System Numbers:
http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_9-1/autonomous_system_numb
ers.html
Chapter 11, "Configuring Route Policy Manager."
For more information on the Virtual Router Redundancy
Chapter 14, "Configuring Object Tracking."
Chapter 1
Overview
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