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BGP Troubleshooting

Efficient Troubleshooting in BGP-4

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BGP is very scalable and is used as a routing protocol in large IP networks - such as the Internet. It is used in the ISP area both between the autonomous systems (AS) and within the AS. Due to its properties, it is also used in the MPLS VPN concept - here both in the access area and in the core. BGP therefore plays a central role in the service provider environment. Enterprise administrators also need BGP know-how, as BGP can be used here when connecting to the WAN. As BGP is of such central importance for accessibility, particular emphasis is placed on reliability and availability. In the event of a fault, it is therefore essential to carry out efficient troubleshooting. The practical knowledge imparted here enables participants to systematically troubleshoot complex routing scenarios with BGP.

Course Contents

  • Functions in BGP
  • BGP routes and attributes
  • Analysis of possible error sources in eBGP and iBGP
  • Systematic troubleshooting in BGP
  • Practical run-through of error scenarios
  • Error analysis and search for MP-BGP
  • Troubleshooting BGP policies

The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.

Premium Course Documents

In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.

  • High-quality color prints of the ExperTeach documentation
  • Exclusive folder in an elegant design
  • Document pouch in backpack shape
  • Elegant LAMY ballpoint pen
  • Practical notepad
Premium Print
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation).

Request in-house training now

Target Group

The course is primarily aimed at employees from Level 1 and Level 2 support at service providers, but also at enterprise administrators who operate BGP-based WAN connections.

Knowledge Prerequisites

Good network knowledge, especially of TCP/IP, is absolutely essential. Participants should also be familiar with the basic principles of the routing protocols OSPF, IS-IS and BGP. The courses State-of-the-Art Routing I and State-of-the-Art Routing II are a good preparation. Participants must also be familiar with Cisco IOS. Knowledge of this at the level of a CCNA is the minimum requirement.

Alternatives

Book this course together with BGP-4 – Design and Configuration as PowerPackage BGP for the discounted price of € 2.595,-.

1 Troubleshooting der BGP Basisprozesse
1.1 Grundlegendes Monitoring
1.2 Troubleshooting des BGP Peering
1.3 Troubleshooting BGP Route Advertisement
1.4 BGP-Route-Reflektor-Probleme
   
2 Troubleshooting BGP Policies
2.1 Filtern von BGP-Updates
2.1.1 Filtern auf Basis des Adresspräfix
2.1.2 Regular Expressions
2.1.3 Filtern auf Basis des AS_PATH-Attributs
2.1.4 … und nun über Route Maps
2.1.5 Das WEIGHT-Attribut
2.1.6 Das LOCAL_PREFERENCE-Attribut
2.1.7 AS_PATH-Verlängerung
2.1.8 Die BGP-Metrik
2.2 Troubleshooting der Wegewahl
2.3 Troubleshooting Inbound-Traffic-Probleme
2.4 Troubleshooting BGP Best-Path Calculation
2.5 Troubleshooting BGP Filter
   
A Übungen und Aufgaben zum Kurs
A.1 Physischer Labaufbau
A.2 Internes Routing mit OSPF
A.3 eBGP und iBGP
A.4 TT 1: Keine iBGP Sessions nach Switchtausch
A.5 TT2: Keine iBGP Session zu R1 und R6
A.6 TT 3: Keine iBGP Sessions nach Umstellung auf MP-BGP
A.7 TT 4: Keine eBGP Sessions
A.8 TT 5: eBGP Peering über Loopback funktioniert nicht
A.9 TT 6: Kein eBGP Peer nach Security-Update
A.10 TT 7: Keine Redundanz bei Abschalten eines externen Links
A.11 TT 8: Neu erstellte Netze fehlen im Routing
A.12 TT 9: IPv6 Test schlägt fehl
A.13 TT 10: Private Adressen aus dem Nachbar-AS werden nicht gefiltert
A.14 TT 11: Kein eBGP Peering nach Optimierung des Netzes
   
B Lösungsschlüssel für IOS XE

Classroom training

Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!

Hybrid training

Hybrid training means that online participants can additionally attend a classroom course. The dynamics of a real seminar are maintained, and the online participants are able to benefit from that. Online participants of a hybrid course use a collaboration platform, such as WebEx Training Center or Saba Meeting. To do this, a PC with browser and Internet access is required, as well as a headset and ideally a Web cam. In the seminar room, we use specially developed and customized audio- and video-technologies. This makes sure that the communication between all persons involved works in a convenient and fault-free way.

Online training

You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.

Tailor-made courses

You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.
Request in-house training now
PDF SymbolYou can find the complete description of this course with dates and prices ready for download at as PDF.

BGP is very scalable and is used as a routing protocol in large IP networks - such as the Internet. It is used in the ISP area both between the autonomous systems (AS) and within the AS. Due to its properties, it is also used in the MPLS VPN concept - here both in the access area and in the core. BGP therefore plays a central role in the service provider environment. Enterprise administrators also need BGP know-how, as BGP can be used here when connecting to the WAN. As BGP is of such central importance for accessibility, particular emphasis is placed on reliability and availability. In the event of a fault, it is therefore essential to carry out efficient troubleshooting. The practical knowledge imparted here enables participants to systematically troubleshoot complex routing scenarios with BGP.

Course Contents

  • Functions in BGP
  • BGP routes and attributes
  • Analysis of possible error sources in eBGP and iBGP
  • Systematic troubleshooting in BGP
  • Practical run-through of error scenarios
  • Error analysis and search for MP-BGP
  • Troubleshooting BGP policies

The detailed digital documentation package, consisting of an e-book and PDF, is included in the price of the course.

Premium Course Documents

In addition to the digital documentation package, the exclusive Premium Print Package is also available to you.

  • High-quality color prints of the ExperTeach documentation
  • Exclusive folder in an elegant design
  • Document pouch in backpack shape
  • Elegant LAMY ballpoint pen
  • Practical notepad
Premium Print
The Premium Print Package can be added during the ordering process for € 150,- plus VAT (only for classroom participation).

Request in-house training now

Target Group

The course is primarily aimed at employees from Level 1 and Level 2 support at service providers, but also at enterprise administrators who operate BGP-based WAN connections.

Knowledge Prerequisites

Good network knowledge, especially of TCP/IP, is absolutely essential. Participants should also be familiar with the basic principles of the routing protocols OSPF, IS-IS and BGP. The courses State-of-the-Art Routing I and State-of-the-Art Routing II are a good preparation. Participants must also be familiar with Cisco IOS. Knowledge of this at the level of a CCNA is the minimum requirement.

Alternatives

Book this course together with BGP-4 – Design and Configuration as PowerPackage BGP for the discounted price of € 2.595,-.

1 Troubleshooting der BGP Basisprozesse
1.1 Grundlegendes Monitoring
1.2 Troubleshooting des BGP Peering
1.3 Troubleshooting BGP Route Advertisement
1.4 BGP-Route-Reflektor-Probleme
   
2 Troubleshooting BGP Policies
2.1 Filtern von BGP-Updates
2.1.1 Filtern auf Basis des Adresspräfix
2.1.2 Regular Expressions
2.1.3 Filtern auf Basis des AS_PATH-Attributs
2.1.4 … und nun über Route Maps
2.1.5 Das WEIGHT-Attribut
2.1.6 Das LOCAL_PREFERENCE-Attribut
2.1.7 AS_PATH-Verlängerung
2.1.8 Die BGP-Metrik
2.2 Troubleshooting der Wegewahl
2.3 Troubleshooting Inbound-Traffic-Probleme
2.4 Troubleshooting BGP Best-Path Calculation
2.5 Troubleshooting BGP Filter
   
A Übungen und Aufgaben zum Kurs
A.1 Physischer Labaufbau
A.2 Internes Routing mit OSPF
A.3 eBGP und iBGP
A.4 TT 1: Keine iBGP Sessions nach Switchtausch
A.5 TT2: Keine iBGP Session zu R1 und R6
A.6 TT 3: Keine iBGP Sessions nach Umstellung auf MP-BGP
A.7 TT 4: Keine eBGP Sessions
A.8 TT 5: eBGP Peering über Loopback funktioniert nicht
A.9 TT 6: Kein eBGP Peer nach Security-Update
A.10 TT 7: Keine Redundanz bei Abschalten eines externen Links
A.11 TT 8: Neu erstellte Netze fehlen im Routing
A.12 TT 9: IPv6 Test schlägt fehl
A.13 TT 10: Private Adressen aus dem Nachbar-AS werden nicht gefiltert
A.14 TT 11: Kein eBGP Peering nach Optimierung des Netzes
   
B Lösungsschlüssel für IOS XE

Classroom training

Do you prefer the classic training method? A course in one of our Training Centers, with a competent trainer and the direct exchange between all course participants? Then you should book one of our classroom training dates!

Hybrid training

Hybrid training means that online participants can additionally attend a classroom course. The dynamics of a real seminar are maintained, and the online participants are able to benefit from that. Online participants of a hybrid course use a collaboration platform, such as WebEx Training Center or Saba Meeting. To do this, a PC with browser and Internet access is required, as well as a headset and ideally a Web cam. In the seminar room, we use specially developed and customized audio- and video-technologies. This makes sure that the communication between all persons involved works in a convenient and fault-free way.

Online training

You wish to attend a course in online mode? We offer you online course dates for this course topic. To attend these seminars, you need to have a PC with Internet access (minimum data rate 1Mbps), a headset when working via VoIP and optionally a camera. For further information and technical recommendations, please refer to.

Tailor-made courses

You need a special course for your team? In addition to our standard offer, we will also support you in creating your customized courses, which precisely meet your individual demands. We will be glad to consult you and create an individual offer for you.
Request in-house training now

PDF SymbolYou can find the complete description of this course with dates and prices ready for download at as PDF.