BGP demystified

Description

A study of BGP for non engineers working in the
Internet. The course starts with a review of the basics
of routers and routing tables and then moves on to a
simple overview of how BPG works with a focus on
BGP metrics influencing the route traffic takes through
the Internet. Hands on with routers follow the major
sessions to reinforce the theory. Note these hands on
sessions are more demonstrations by the trainer but
some can be followed along and done by delegates
(e.g. looking at Internet routing tables.)

What will you learn

BGP training course details

Non technical staff wishing to know more about BGP.

None.

1 day

What is a network, what is a router, routing tables,
static routes, routing protocols. When an ISP uses
static routes and when they use BGP. IP
addresses, subnet masks, groups of IP addresses.
IPv6. Hands on: Showing a full routing table.
Seeing traceroute being used.

What's BGP? BGP versus other routing protocols,
ASs, AS numbers. RIPE database, peeringdb.
Hands on: Finding AS numbers. Showing simple
BGP configuration and routing tables in an EVENG example.

Simple walk through of BGP incremental updates
and how routes change when links go down.
Hands on: Showing packets and route changes
when a link goes down/comes up.

Transit, peering, routing policy and route filtering.
Longest matching rule in routing tables, route
selection order, Local preference, AS prepend,
MEDs. Hands on: Seeing BGP influencing traffic.
Looking at peering policies in RIPE and peeringdb.

What are route servers? LINX route servers, route
server policy control and communities, What are
route collectors, Looking glasses. Hands on:
Seeing the LINX route server details in peeringdb,
using a looking glass.