The definitive guide to troubleshooting today's complex BGP
networks This is today's best single source for the techniques you
need to troubleshoot BGP issues in modern Cisco IOS, IOS XR, and
NxOS environments. BGP has expanded from being an Internet routing
protocol and provides a scalable control plane for a variety of
technologies, including MPLS VPNs and VXLAN. Bringing together
content previously spread across multiple sources, Troubleshooting
BGP describes BGP functions in today's blended service provider and
enterprise environments. Two expert authors emphasize the
BGP-related issues you're most likely to encounter in real-world
deployments, including problems that have caused massive network
outages. They fully address convergence and scalability, as well as
common concerns such as BGP slow peer, RT constraint filtering, and
missing BGP routes. For each issue, key concepts are presented,
along with basic configuration, detailed troubleshooting methods,
and clear illustrations. Wherever appropriate, OS-specific
behaviors are described and analyzed. Troubleshooting BGP is an
indispensable technical resource for all consultants,
system/support engineers, and operations professionals working with
BGP in even the largest, most complex environments. * Quickly
review the BGP protocol, configuration, and commonly used features
* Master generic troubleshooting methodologies that are relevant to
BGP networks * Troubleshoot BGP peering issues, flapping peers, and
dynamic BGP peering * Resolve issues related to BGP route
installation, path selection, or route policies * Avoid and fix
convergence problems * Address platform issues such as high CPU or
memory usage * Scale BGP using route reflectors, diverse paths, and
other advanced features * Solve problems with BGP edge
architectures, multihoming, and load balancing * Secure BGP
inter-domain routing with RPKI * Mitigate DDoS attacks with RTBH
and BGP Flowspec * Understand common BGP problems with MPLS Layer 3
or Layer 2 VPN services * Troubleshoot IPv6 BGP for service
providers, including 6PE and 6VPE * Overcome problems with VXLAN
BGP EVPN data center deployments * Fully leverage BGP High
Availability features, including GR, NSR, and BFD * Use new BGP
enhancements for link-state distribution or tunnel setup This book
is part of the Networking Technology Series from Cisco Press, which
offers networking professionals valuable information for
constructing efficient networks, understanding new technologies,
and building successful careers.
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