TAILIEUCHUNG - Border Gateway Protocol (BGP)

Border Gateway Protocol (BGP) is the routing protocol used to exchange routing information across the Internet. It makes it possible for ISPs to connect to each other and for end-users to connect to more than one ISP. BGP is the only protocol that is designed to deal with a network of the Internet's size, and the only protocol that can deal well with having multiple connections to unrelated routing domains. | Building Reliable Networks with the Border Gateway Protocol O REILLY Iljitsch van Beijnum Network Administration O REILLY8 BGP Every second millions of hosts send billions of packets across the Internet to other J hosts with nothing more than the destination IP address to guide them along the way. c Internet service providers ISPs use the Border Gateway Protocol BGP to inform 1 . I ---- ----- each other which IP address goes where. BGP is also useful for end-user organizations who want reliable connections to the Internet over two or more ISPs. BGP is the routing protocol that exchanges routing information across the Internet and is the only protocol that can deal with a network of the Internet s size. Il s also the only protocol that can deal well with multiple connections to unrelated routing domains. In the event of a network outage BGP recomputes the path so packets can avoid the problem area and keep flowing. BGP is a guide to all aspects of BGP the protocol its configuration and operation in an Internet environment and how to troubleshoot it. The book also describes how to secure BGP and how BGP can be used to combat Distributed Denial of Service DDoS attacks. Although the examples throughout this book are for Cisco routers the techniques discussed can be applied to any BGP-capable router. BGP s topics include Requesting an AS number and IP addresses Route filtering by remote ISPs and how to deal with it Configuring the initial BGP setup Balancing incoming or outgoing traffic over available connections Securing and troubleshooting BGP BGP in larger networks interaction with internal routing protocols scalability issues BGP in ISP networks BGP is for anyone interested in creating reliable connectivity to the Internet. US CAN ISBN-10 0-596-00254-8 ISBN-13 978-0-596-00254-1 . IIIIIIIHIIIIIIIIIIIIIIIIIIIII IIÍIIỈIIỈIIỈIIÍI 9 780 596 002 541 1 1111111 111111 Download from Wow eBook .

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