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Summary

This chapter covered the important issues of policy routing, bandwidth management, and QoS architectures at Layer 2 (802.1P/Q, MPLS) and Layer 3(IP ToS, precedence, CoS, IntServ/RSVP, and DiffServ) of the Open System Interconnection (OSI) stack. The UNIX approaches were compared to Cisco QoS architecture, and the entanglement of QoS and packet filtering on the UNIX side was discussed.



    		Command Syntax Conventions
    		Chapter 1. Operating System Issues and Features-The Big Picture
    		Chapter 2. User-Space Routing Software
    		Chapter 3. Kernel Requirements for a Full-Featured Lab
    		Chapter 4. Gateway WAN/Metro Interfaces
    		Chapter 5. Ethernet and VLANs
    		Chapter 6. The Analyzer Toolbox, DHCP, and CDP
    		Chapter 7. The UNIX Routing and ARP Tables
    		Chapter 8. Static Routing Concepts
    		Chapter 9. Dynamic Routing Protocols-Interior Gateway Protocols
    		Chapter 10. ISP Connectivity with BGPv4-An Exterior Gateway Path-Vector Routing Protocol for Interdomain Routing
    		Chapter 11. VPN Technologies, Tunnel Interfaces, and Architectures
    		Chapter 12. Designing for High Availability
    		Chapter 13. Policy Routing, Bandwidth Management, and QoS
    		Policy Routing
    		Traffic Shaping, Queuing, Reservation, and Scheduling
    		Linux QoS
    		Layer 3 QoS: IP ToS, Precedence, CoS, IntServ, and DiffServ Codepoints
    		802.1P/Q Tagging/Priority-QoS at the Data-Link/MAC Sublayer
    		MPLS Exp Field and MPLS Traffic Engineering
    		DiffServ and RSVP/RSVP-TE Implementations for UNIX
    		Cisco IOS QoS and Queuing Architectures
    		UNIX Firewalling Engines and Queuing
    		Summary
    		Recommended Reading
    		Endnote
    		Chapter 14. Multicast Architectures
    		Chapter 15. Network Address Translation
    		Appendix A. UNIX Kernel Configuration Files
    		Appendix B. The FreeBSD Netgraph Facility