+44 (0)1737 821590
LINX Accredited Internet Technician 3  |    A 5 day   hands on   training course

LINX 3 training course description

A detailed study of BGP, from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and routing registries. The course culminates with a study of an industrial strength BGP template illustrating important issues such as bogon filtering. Practical hands on with routers follow the major sessions to reinforce the theory.

A multiple choice exam, leading to the LAIT III certification, is available after the course. The exam consists of 60 questions and lasts 2 hours.

What will you learn
  • Connect enterprises to the Internet, and ISPs to each other.
  • Describe how BGP works.
  • List, describe and configure the main BGP attributes.
  • Implement and troubleshoot BGP.
  • Work with route aggregation and calculate CIDR prefixes in seconds.
  • Influence traffic paths with BGP.
LINX 3 training course details
  • Who will benefit:
  • Network engineers.

  • Prerequisites:
  • LAIT I and II OR CCNP and take LAIT I and LAIT II exams whilst on this course.

  • Duration
  • 5 days

  • Dates & prices
  • Click here

LINX 3 training course contents

  • Basic BGP
  • IGPs, EGPs, What’s BGP? BGP RIB, in/out process, tables peers, adding routes.
    Hands on Simple configuration and troubleshooting.

  • The Internet and peering
  • ASs, AS numbers, Internet structure, ISP types, ISP network design, IXs, peering vs. transit, public/ private peering, bi/multi-lateral peering.
    Hands on AS information gathering.

  • How BGP works
  • Incremental updates, Path vector protocols, BGP protocol stack, the BGP header, message types, NLRI, withdrawn routes, route refresh, route dampening.
    Hands on More troubleshooting, packet analysis.

  • MBGP and IPv6
  • Multiprotocol routing, AFI, SAFI, MBGP and multicasts, IPv6, MPLS VPNs.
    Hands on IPv6

  • BGPv4 aggregation
  • CIDR, benefits, techniques, shortcuts, configuring BGP aggregation, leaking routes.
    Hands on Reducing routing table size.

  • BGP path selection
  • BGP attributes, attribute types, route selection order, Local preference, AS prepend, MEDs.
    Hands on Influencing traffic with BGP.

  • BGP routing policies
  • What is policy? Examples, route filtering, AS filtering, REs, applying preference selectively, peer groups.
    Hands on Sophisticated policies.

  • RIPE and routing registries
  • RIRs, Allocations, assignments, PI vs. PA. Objects, RPSL, routing registry,
    Hands on The RIPE database.

  • Automating BGP configuration
  • Automation tools, whois, IRRToolSet, Bogon lists, tracking bogon lists, HTTP, Peering, routing registries, DNS.

  • Communities
  • What is a community? Community names, communities for: peer types and geography. RFC 1998, default communities.
    Hands on Setting local preference on other routers.

  • Route servers
  • What are route servers? LINX route servers, route server policy control, What are route collectors, Looking glasses.
    Hands on Setting up and working with a route server.

  • Peer relationships
  • IBGP, EBGP, next hop self, advertising routes into/out of BGP, synchronisation.
    Hands on IBGP, troubleshooting a large BGP network.

  • Route reflectors and confederations
  • Full mesh IBGP, Route reflectors, RR configuration and design, confederations, migration issues.
    Hands on RR configuration.

  • BGP architectures
  • Stub vs. transit AS, when to use BGP, multihoming strategies and issues, default routes. Multihop EBGP, load balancing.
    Hands on Multihoming.

  • BGP security
  • RFC 7454, security steps, BGP TTL security, filters, RPKI, ROAs, rsync, rrdp, validators. A secure BGP template.
    Hands on RPKI prefix validation.

Learning path



Based on customer ratings

R. P. - LINX

"It is a good base level BGP training to participate at LINX and essential for all LINX staff."

S. G. - Netnames

"Great teaching and good depth … always answered questions with good detail so helped a lot."

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.