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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.
The definitive deep-dive guide to hardware and software
troubleshooting on Cisco Nexus switches The Cisco Nexus platform
and NX-OS switch operating system combine to deliver unprecedented
speed, capacity, resilience, and flexibility in today's data center
networks. Troubleshooting Cisco Nexus Switches and NX-OS is your
single reference for quickly identifying and solving problems with
these business-critical technologies. Three expert authors draw on
deep experience with large Cisco customers, emphasizing the most
common issues in real-world deployments, including problems that
have caused major data center outages. Their authoritative,
hands-on guidance addresses both features and architecture, helping
you troubleshoot both control plane forwarding and data plane/data
path problems and use NX-OS APIs to automate and simplify
troubleshooting. Throughout, you'll find real-world configurations,
intuitive illustrations, and practical insights into key
platform-specific behaviors. This is an indispensable technical
resource for all Cisco network consultants, system/support
engineers, network operations professionals, and CCNP/CCIE
certification candidates working in the data center domain. *
Understand the NX-OS operating system and its powerful
troubleshooting tools * Solve problems with cards, hardware drops,
fabrics, and CoPP policies * Troubleshoot network packet switching
and forwarding * Properly design, implement, and troubleshoot
issues related to Virtual Port Channels (VPC and VPC+) * Optimize
routing through filtering or path manipulation * Optimize IP/IPv6
services and FHRP protocols (including HSRP, VRRP, and Anycast
HSRP) * Troubleshoot EIGRP, OSPF, and IS-IS neighbor relationships
and routing paths * Identify and resolve issues with Nexus route
maps * Locate problems with BGP neighbor adjacencies and enhance
path selection * Troubleshoot high availability components (BFD,
SSO, ISSU, and GIR) * Understand multicast protocols and
troubleshooting techniques * Identify and solve problems with OTV *
Use NX-OS APIs to automate troubleshooting and administrative tasks
Trust the best selling Official Cert Guide series from Cisco Press
to help you learn, prepare, and practice for exam success. They are
built with the objective of providing assessment, review, and
practice to help ensure you are fully prepared for your
certification exam. CCNP Enterprise Advanced Routing ENARSI 300-410
Official Cert Guide presents you with an organized test preparation
routine using proven series elements and techniques. "Do I Know
This Already?" quizzes open each chapter and allow you to decide
how much time you need to spend on each section. Exam topic lists
make referencing easy. Chapter-ending Exam Preparation Tasks help
you drill on key concepts you must know thoroughly. Master Cisco
CCNP ENARSI 300-410 exam topics Assess your knowledge with
chapter-opening quizzes Review key concepts with exam preparation
tasks Practice with realistic exam questions in the practice test
software CCNP Enterprise Advanced Routing ENARSI 300-410 Official
Cert Guide from Cisco Press allows you to succeed on the exam the
first time and is the only self-study resource approved by Cisco.
Expert authors Raymond Lacoste and Brad Edgeworth share preparation
hints and test-taking tips, helping you identify areas of weakness
and improve both your conceptual knowledge and hands-on skills.
This complete study package includes A test-preparation routine
proven to help you pass the exams Do I Know This Already? quizzes,
which allow you to decide how much time you need to spend on each
section Chapter-ending exercises, which help you drill on key
concepts you must know thoroughly The powerful Pearson Test Prep
Practice Test software, complete with hundreds of well-reviewed,
exam-realistic questions, customization options, and detailed
performance reports Practice exercises that help you enhance your
knowledge More than 60 minutes of video mentoring from the author A
final preparation chapter, which guides you through tools and
resources to help you craft your review and test-taking strategies
Study plan suggestions and templates to help you organize and
optimize your study time Well regarded for its level of detail,
study plans, assessment features, and challenging review questions
and exercises, this official study guide helps you master the
concepts and techniques that ensure your exam success. This
official study guide helps you master all the topics on the CCNP
Enterprise Advanced Routing ENARSI exam, including Layer 3
technologies, including IPv4/IPv6 routing, EIGRP, OSPF, and BGP VPN
services, including MPLS Layer 3 VPNs and DMVPN Infrastructure
security, including ACLs, AAA, uRPF, CoPP, and IPv6 first hop
security features Infrastructure services, including syslog, SNMP,
IP SLA, Object Tracking, NetFlow, Flexible NetFlow, and more
Companion Website: The companion website contains more than 200
unique practice exam questions, practice exercises, a study
planner, and 60 minutes of video training. Includes Exclusive
Offers For Up to 80% Off Practice Tests and Video Training Pearson
Test Prep online system requirements: Browsers: Chrome version 73
and above; Safari version 12 and above; Microsoft Edge 44 and
above. Devices: Desktop and laptop computers, tablets running on
Android v8.0 and iOS v13, smartphones with a minimum screen size of
4.7". Internet access required. Pearson Test Prep offline system
requirements: Windows 10, Windows 8.1; Microsoft .NET Framework 4.5
Client; Pentium-class 1 GHz processor (or equivalent); 512 MB RAM;
650 MB disk space plus 50 MB for each downloaded practice exam;
access to the Internet to register and download exam databases Also
available from Cisco Press for CCNP Enterprise Advanced Routing
study is the CCNP Enterprise Advanced Routing ENARSI 300-410
Official Cert Guide Premium Edition eBook and Practice Test. This
digital-only certification preparation product combines an eBook
with enhanced Pearson Test Prep Practice Test. This integrated
learning package: Allows you to focus on individual topic areas or
take complete, timed exams Includes direct links from each question
to detailed tutorials to help you understand the concepts behind
the questions Provides unique sets of exam-realistic practice
questions Tracks your performance and provides feedback on a
module-by-module basis, laying out a complete assessment of your
knowledge to help you focus your study where it is needed most
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