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Contents Listing

Preface



1. The Internet, Routing, and BGP

Topology of the Internet

TCP/IP Design Philosophy

Routing Protocols

Multihoming



2. IP Addressing and the BGP Protocol

IP Addresses

Interdomain Routing History

The BGP Protocol

Multiprotocol BGP

Interior Routing Protocols



3. Physical Design Considerations

Availability

Selecting ISPs

Bandwidth

Router Hardware

Failure Risks

Building a Wide Area Network

Network Topology Design



4. IP Address Space and AS Numbers

The Different Types of Address Space

Requesting Address Space

Renumbering IP Addresses

The AS Number

Routing Registries

Routing Policy Specification Language



5. Getting Started with BGP

Enabling BGP

Monitoring BGP

Clearing BGP Sessions

Filtering Routes

Internal BGP

The Internal Network

Minimizing the Impact of Link Failures

eBGP Multihop



6. Traffic Engineering

Knowing Which Route Is Best

Route Maps

Setting the Local Preference

Manipulating Inbound AS Paths

Inbound Communities

BGP Load Balancing

Traffic Engineering for Incoming Traffic

Setting the MED

Announcing More Specific Routes

Queuing, Traffic Shaping, and Policing



7. Security and Integrity of the Network

Passwords and Security

Software

Protecting BGP

Denial-of-Service Attacks



8. Day-to-Day Operation of the Network

The Network Operations Center

NOC Hardware Facilities

SNMP Management

Router Names

General IP Network Management



9. When Things Start to Go Down: Troubleshooting

Keeping a Clear Head

Managing the Troubleshooting Process

Dealing with Service Providers

Physical and Datalink Layer Problems

Routing and Reachability Problems

Black Holes

DNS Problems



10. BGP in Larger Networks

Peer Groups

Using Loopback Addresses for iBGP

iBGP Scaling

Dampening Route Flaps

OSPF as the IGP

Traffic Engineering in the Internal Network

Network Partitions



11. Providing Transit Services

Route Filters

Communities

Anti-DoS Measures

Customers with Backup Connections

Providing IPv6 and Multicast



12. Interconnecting with Other Networks

Peering

Internet Exchanges, NAPs, and MAEs

Connecting to an Internet Exchange

Connecting to More Exchange Points

Rejecting Unwanted Traffic

IX Subnet Problems

Talking to Other Network Operators

Exchange Point Future



A. Cisco Configuration Basics



B. Binary Logic, Netmasks, and Prefixes



C. Notes on the IPv4 Address Space



Glossary



Index