Troubleshooting BGP

Author: Vinit Jain
Publisher: Cisco Press
ISBN: 013443658X
Format: PDF, Kindle
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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.

Troubleshooting Bgp

Author: Vinit Jain
Publisher:
ISBN: 9781587144646
Format: PDF, ePub, Docs
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This is today's best single source for the techniques you need to troubleshoot key BGP issues for all these Cisco operating systems: Cisco IOS, IOS XR, and NxOS. Bringing together content previously spread across multiple sources and Cisco Press titles, it covers updated various BGP design implementations found in blended service providers and enterprise environments and shows exactly how to troubleshoot them. Two expert authors emphasize the BGP-related problems you're most likely to encounter in real-world deployments, including problems that have caused massive network outages in recent years. They address important troubleshooting topics such as BGP Slow-peer, RT-Constraint filtering, and BGP route missing, and offer important coverage of datacenter troubleshooting in VxLAN BGP EVPN environments. You'll also find expert coverage of scalability and convergence issues and solutions. For each feature, key concepts are presented, followed by basic configuration and detailed troubleshooting techniques, complete with illustrations. Wherever appropriate, significant platform specific behaviors are described and analyzed. Troubleshooting BGP will be an indispensable technical resource for all network consultants, system/support engineers, network operations professionals and CCNP/CCIE certification candidates working with BGP in any environment -- enterprise, service provider, or datacenter.

BGP Design and Implementation

Author: Randy Zhang
Publisher: Cisco Press
ISBN: 1587058634
Format: PDF, ePub, Docs
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This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version. Learn practical guidelines for designing and deploying a scalable BGP routing architecture Up-to-date coverage of BGP features like performance tuning, multiprotocol BGP, MPLS VPN, and multicast BGP In-depth coverage of advanced BGP topics to help design a complex BGP routing architecture Practical design tips that have been proven in the field Extensive configuration examples and case studies BGP Design and Implementation focuses on real-world problems and provides not only design solutions, but also the background on why they are appropriate and a practical overview of how they apply into a top-down design. The BGP protocol is being used in both service provider and enterprise networks. The design goals of these two groups are different, leading to different architectures being used in each environment. The title breaks out the separate goals, and resulting solutions for each group to assist the reader in further understanding different solution strategies. This book starts by identifying key features and functionality in BGP. It then delves into the topics of performance tuning, routing policy development, and architectural scalability. It progresses by examining the challenges for both the service provider and enterprise customers, and provides practical guidelines and a design framework for each. BGP Design and Implementation finishes up by closely looking at the more recent extensions to BGP through Multi-Protocol BGP for MPLS-VPN, IP Multicast, IPv6, and CLNS. Each chapter is generally organized into the following sections: Introduction, Design and Implementation Guidelines, Case Studies, and Summary.

BGP

Author: Iljitsch van Beijnum
Publisher: "O'Reilly Media, Inc."
ISBN: 9781449390822
Format: PDF, ePub, Docs
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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.This book is a guide to all aspects of BGP: the protocol, its configuration and operation in an Internet environment, and how to troubleshooting it. The book also describes how to secure BGP, and how BGP can be used as a tool in combating 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.The topics include: Requesting an AS number and IP addresses Route filtering by remote ISPs and how to avoid this Configuring the initial BGP setup Balancing the available incoming or outgoing traffic over the available connections Securing and troubleshooting BGP BGP in larger networks: interaction with internal routing protocols, scalability issues BGP in Internet Service Provider networks The book is filled with numerous configuration examples with more complex case studies at the end of the book to strengthen your understanding. BGP is for anyone interested in creating reliable connectivity to the Internet.

Cisco BGP 4 Command and Configuration Handbook

Author: William R. Parkhurst
Publisher: Cisco Press
ISBN: 158705017X
Format: PDF, Docs
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"Cisco BGP-4 Command and Configuration Handbook is a clear, concise, and complete source of documentation for all Cisco IOS Software BGP-4 commands. If you are preparing for the CCIE written and lab exams, this book can be used as a laboratory guide to learn the purpose and proper use of every BGP command. If you are a network designer, this book can be used as a ready reference for any BGP command." "Cisco BGP-4 Command and Configuration Handbook provides example scenarios that demonstrate the proper use of every BGP-4 command, which can be implemented using a minimum number of routers. This will enable you to learn each command without requiring an extensive and expensive lab configuration. The scenarios are presented so that the purpose and use of each command can be demonstrated without clouding the issue. Some of the examples lead you into common non-working situations in order to reinforce the understanding of the operation of the particular BGP command."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Practical BGP

Author: Russ White
Publisher: Addison-Wesley Professional
ISBN: 9780321127006
Format: PDF
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PRACTICAL BGP""I would recommend this book to network engineers, Internet service providers, network software developers, and IT staff who need to deal with network planning and routing."""-Enke Chen, Redback Networks"Hands-on guidance for deploying and optimizing BGP networks-enterprise and ISPNow there's a practical guide to deploying and managing BGPv4 in "any "environment-from small enterprises to the largest Tier 2 and Tier 3 service providers. A team of the world's leading BGP experts brings together powerful insights into network design, configuration, and deployment with the latest version of BGP-including hands-on guidance for leveraging its key enhancements. Coverage includes- Best practices and diverse real-world scenarios for applying BGPv4- Understanding the impact of BGP design on local networks and the global Internet backbone- Building effective BGP policies: aggregation, propagation, accounting, and more- Maximizing scalability and performance in BGPv4 networks- BGP and network security, including Secure Origin BGP- Deploying BGP/MPLS Layer 3 VPNs- "Extensive troubleshooting guidance unavailable in any other book"If you're a network engineer or administrator looking to drive maximum reliability and performance from BGP-based networks, "Practical BGP "will help you get the job done-from start to finish.RUSS WHITE is a Network Protocols Deployment Engineer in Cisco Systems Routing DNA Team specializing in routing protocols. A widely recognized expert in networking, he co-chairs the IETF Routing Protocols Security working group, and co-authored Advanced IP Network Design, IS--IS for IP Networks, and Inside Cisco IOS Software Architecture.DANNY McPHERSON is a member of the Architecture Team at Arbor Networks. He has held technical leadership positions with several global ISPs, is active within the IETF, and is an acknowledged expert in Internet architecture and security. He co-authored Internet Routing Architectures, Second Edition.SRIHARI SANGLI, Senior Manager for MPLS and routing development at Procket Networks, was formerly Senior Technical Leader in Cisco's IOS Routing Protocols group. He, along with others at Cisco, coded the industry-first implementation of BGP/MPLS based Layer-3 VPN.

IP Routing on Cisco IOS IOS XE and IOS XR

Author: Brad Edgeworth
Publisher: Cisco Press
ISBN: 0133846768
Format: PDF, Mobi
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An Essential Guide to Understanding and Implementing IP Routing Protocols Cisco’s authoritative single-source guide to IP routing protocols for enterprise and service provider environments Service providers and large enterprises are converging on a common IP infrastructure that supports rapid deployment of high-value services. Demand is soaring for highly skilled IP network engineers who can implement and run these infrastructures. Now, one source combines reliable knowledge about contemporary IP routing protocols and expert hands-on guidance for using them with Cisco IOS, IOS XE, and IOS XR operating systems. After concisely reviewing the basics, three Cisco experts fully explain static routing, EIGRP, OSPF, IS-IS, and BGP routing protocols. Next, they introduce advanced routing with policies and redistribution, sophisticated BGP-based traffic engineering, and multicast. They present comprehensive coverage of IPv6, from its multicast implementation to its completely revamped address structure. Finally, they discuss advanced high availability techniques, including fast routing convergence. IP Routing on Cisco IOS, IOS XE, and IOS XR presents each protocol conceptually, with intuitive illustrations, realistic configurations, and appropriate output. To help IOS users master IOS XE and IOS XR, differences in operating systems are explicitly identified, and side-by-side feature command references are presented. All content fully aligns with [email protected], providing efficient self-study for multiple Cisco Career Certifications, including CCNA®/CCNP®/CCIE® Service Provider, CCIE Routing & Switching, Cisco IOS XR Specialist Certification, and the routing components of several additional Cisco Certifications. Brad Edgeworth, CCIE No. 31574 (R&S & SP) has been with Cisco since 2011 as Systems Engineer and Technical Leader. Formerly a network architect and consultant for various Fortune® 500 companies, his 18 years of IT experience includes extensive architectural and operational work in enterprise and service provider environments. He is a Cisco Live distinguished speaker presenting on IOS XR. Aaron Foss, CCIE No. 18761 (R&S & SP), a High Touch Engineer with the Cisco Focused Technical Support (FTS) organization, works with large service providers to troubleshoot MPLS, QoS, and IP routing issues. He has more than 15 years of experience designing, deploying, and troubleshooting IP networks. Ramiro Garza Rios, CCIE No. 15469 (R&S, SP, and Security), Senior Network Consulting Engineer with Cisco Advanced Services, plans, designs, implements, and optimizes next-generation service provider networks. Before joining Cisco in 2005, he was Network Consulting and Presales Engineer for a Cisco Gold Partner in Mexico, where he planned and deployed both enterprise and service provider networks. Foreword by Norm Dunn, Senior Product Manager, [email protected] Global Product Management, Service Provider Portfolio Understand how IOS®, IOS XE, and IOS XR operating systems compare Master IPv4 concepts, addressing structure, and subnetting Learn how routers and routing protocols work, and how connected networks and static routes behave from the router’s perspective Work with EIGRP and distance vector routing Deploy basic and advanced OSPF, including powerful techniques for organizing routing domains, path selection, and optimization Compare IS-IS with OSPF, and implement advanced IS-IS multilevel routing, optimization, and path selection Make the most of BGP and route manipulation, including IOS/IOS XE route maps and IOS XR’s highly scalable Route Policy Language Use advanced policy-based route manipulation and filtering Implement route redistribution: rules, potential problems, and solutions Leverage BGP communities, summaries, and other router conservation techniques Discover how IPv6 changes IP address and command structure Establish highly efficient multicast routing in IPv4 and IPv6 environments Systematically improve network availability and operational uptime through event driven detection and fast routing convergence

Troubleshooting Cisco Nexus Switches and NX OS

Author: Vinit Jain
Publisher: Cisco Press
ISBN: 0134783190
Format: PDF, ePub, Mobi
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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

Cisco OSPF Command and Configuration Handbook

Author: William R. Parkhurst
Publisher: Cisco Press
ISBN: 9781587050718
Format: PDF, Docs
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The comprehensive OSPF protocol command reference. A comprehensive interior IP routing protocols command reference-invaluable for network designers, engineers, and architects. Contains numerous scenarios covering every possible command. Presents clear and concise commentary on the purpose and context of each command. Enterprise IP networks will typically employ the Open Shortest Path First (OSPF) protocol in one capacity or another. The documentation available for this routing protocol is covered in many different resources but there is no single source that brings every OSPF routing protocol command together in one reference as a handbook. Beyond background information, there also is little information available on its practical use and configuration. The handbook approach is unique in that at least one scenario is presented for every OSPF routing protocol configuration command. The purpose, proper use, configuration, verification, and debugging of the command is presented. Therefore, network designers and candi20020430s for any of the Cisco? Career Certifications from CCNA? to CCIE? can use this handbook. Through the discussion of functionality and the scenario-based configuration examples, Parkhurst helps readers gain a thorough understanding of the practical side of the OSPF routing protocols. William R. Parkhurst, Ph.D., CCIE is the manager of the CCIE Development group at Cisco Systems?. The CCIE Development group is responsible for all new CCIE written qualification and laboratory exams. Prior to joining the CCIE team, Bill was a Consulting Systems Engineer supporting the Sprint Operation. He first became associated with Cisco Systems while a Professor of Electrical and Computer Engineering at Wichita State University. In conjunction with Cisco Systems, WSU established the first CCIE Preparation Laboratory. Parkhurst is the author of several networking books, including Cisco BGP-4 Command and Configuration Reference, Cisco Press.