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LINX Accredited Internet Technician 3

A 5 day
HANDS ON
training course

LINX 3 training course description

A detailed study of BGP and core MPLS, from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and routing registries. Practical hands on with Cisco routers follow the major sessions to reinforce the theory. Juniper configurations are also explored in the theory sessions.

Key outcomes from this course

By the end of the course delegates will be able to:
  • 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.
  • Implement and troubleshoot MPLS.

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

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.

Overall ratings for this course:

Course review


"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

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.

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

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Incremental updates, Path vector protocols, BGP protocol stack, the BGP header, message types, NLRI, withdrawn routes, route refresh.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

Route reflectors and confederations
configuration and design, confederations, migration issues.
Hands on: RR configuration.

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.

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.

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

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

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

What is MPLS?
Core MPLS, MPLS and the 7 layer model, MPLS protocol, MPLS standard, MPLS runs on routers, MPLS history, Why MPLS?.

MPLS architecture
LSRs, PE and P router roles, FEC, swapping labels, MPLS packet format, Loops, TTL control.
Hands on: Enabling MPLS. Testing and troubleshooting of MPLS.

EXAM

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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