The document discusses layer 3 routing and multicasting in a typical enterprise network. It covers layer 3 considerations at the access and aggregation levels, including advantages like smaller layer 2 domains and drawbacks like more configuration points. It also discusses licensing requirements for routing protocols on Nexus platforms, as well as support for protocols like OSPF, EIGRP, and BGP.

1. L3 Routing & Multicasting

2. Typical Enterprise Network Design

3. Layer 3 Feature by place in Network

4. Layer 3 Access Consideration
• Advantages
 Lower L2 table utilization
 Smaller L2 domain eliminate STP
• Drawbacks
 More L3 configuration points
 VM mobility constrained to a smaller L2
domain
• Use OSPF stub area, EIGRP
stub or static default routes
• Fabric Extender technology
enables larger L2 domains
without adding STP hops

5. Layer 3 Aggregation Considerations

6. Nexus 7000 Layer 3 and MPLS Support

7. Comparison of I/O Module

8. Licence
• Enterprise Services License - all routing protocols
except RIP
• MPLS License – MPLS features
• XL License – higher FIB table sizes (optional)
• Base - all other Layer 3 features (SVIs, Layer 3 ports,
FHRP, IGMP etc)

9. Nexus 5500 L3 Support

10. 5500 L3 Licence

11. Nexus 2000 FEX L3 / MPLS

12. IP Unicast Routing and Forwarding

13. NX-OS and Nexus 7000 Unicast
Routing Architecture

14. NX-OS Unicast Routing Protocols
Platform Support

15. NX-OS Unicast Routing Protocols
Configuration Highlights

16. Management and Troubleshooting
Highlights

17. Router-id Selection Process

18. OSPF in NX-OS

19. OSPF

20. EIGRP in NX-OS

21. EIGRP

22. BGP
• Full MP-BGP support
• BGP version 4 (RFC 4271)
• Multi-Protocol Extensions (RFC 2858)
• Integrated implementation for IPv4 and IPv6
• Route Reflector support for all Afs
• BGP Dynamic Capability (draft-ietf-idr-
dynamic-cap-14)
• 4 byte ASN support and interoperability (RFC
4893)

23. BGP