The following information
provides general guidelines for the
content likely to be included on the
BGP exam. However, other related topics
may also appear on any specific delivery
of the exam.
BGP
Overview
Introduction to BGP
 |
Given a network
scenario, identify appropriate
BGP usage and its limitations |
BGP Session Establishment
|
Given a typical
BGP network scenario, describe
the concept of BGP neighbors
and the neighbor session establishment
procedures |
BGP Route Processing
|
Given a diagram
of an operational BGP network,
describe interdomain route processing,
route propagation and BGP path
selection |
Basic BGP Configuration
|
Given a network
consisting of multiple domains,
successfully configure BGP |
Monitoring and Troubleshooting
BGP
|
Given a configured
BGP network, verify proper operation
and perform the steps necessary
to correct basic BGP configuration
errors |
Route
Selection Using Policy Controls
Multi-Homed BGP Networks
|
Given a customer
scenario where connections to
multiple ISPs must be supported,
describe the need for influencing
BGP route selection |
AS-Path Filters
|
Given a customer
scenario where connections to
multiple ISPs must be supported,
successfully configure BGP to
influence route selection using
AS path filters |
Prefix-List Filters
|
Given a customer
scenario where connections to
multiple ISPs must be supported,
successfully configure BGP to
influence route selection using
prefix-list filters |
Outbound Route Filtering
|
Given an operational
BGP network, use outbound route
filtering to minimize the impact
of BGP routing updates on router
resources |
Route-Maps as BGP Filters
|
Given a typical
BGP network, correctly configure
BGP to influence route selection
using route maps |
Implementing Changes
in BGP Policy
|
Given a typical
BGP network, configure the route-refresh
feature to minimize the impact
of expediting BGP policy updates |
Route
Selection Using Attributes
BGP Path Attributes
|
List BGP path
attributes and functionality
of each attribute Influencing
BGP Route Selection with Weights |
|
Given a customer
scenario where multiple connections
must be supported, successfully
configure BGP to influence route
selection using the weight attribute |
BGP Local Preference
|
Given a customer
scenario where multiple connections
must be supported, successfully
configure BGP to influence route
selection using the local preference
attribute |
BGP Multi-Exit-Discriminator
(MED)
|
Given a customer
scenario where multiple connections
must be supported, successfully
configure BGP to influence route
selection using the Multi-Exit-Discriminator
(MED) attribute |
BGP Communities
|
Given a customer
scenario where multiple connections
must be supported, successfully
configure BGP to influence route
selection using BGP community
attributes |
Customer-to-Provider
Connectivity with BGP
Customer Connectivity Requirements
|
Describe the
requirements to connect customer
networks to the Internet in
a service provider environment |
Static Routing Toward
the Customer
|
Given a service
provider network, implement
customer connectivity using
static routing |
BGP Customer Multi-Homed
to a Single Service Provider
|
Given a customer
scenario where multiple connections
to a single ISP must be supported,
implement customer connectivity
with BGP |
BGP Customer Multi-Homed
to Multiple Service Providers
|
Given a customer
scenario where connections to
multiple ISPs must be supported,
implement customer connectivity
with BGP |
BGP
Transit Autonomous System
Transit Autonomous System Functions
|
Describe the
function of a transit autonomous
system and the need for IBGP
IBGP and EBGP Interaction in
a Transit AS |
|
Given a transit
autonomous system, describe
the interaction between EBGP
and IBGP in relation to relevant
BGP attributes |
Packet Forwarding in
Transit Autonomous Systems
|
Describe the
function of an IGP in forwarding
packets through an autonomous
system |
Configuring a Transit
Autonomous System
|
Given a BGP network
scenario, successfully configure
an autonomous system to act
as a transit backbone |
Monitoring and Troubleshooting
IBGP in Transit AS
|
Given a configured
BGP transit network, verify
proper operation and perform
the steps necessary to correct
basic IBGP configuration errors |
BGP
Route Reflectors
Introduction to Route Reflectors
|
Describe the
function and operation of route
reflectors in a BGP environment |
Network Design with
Route Reflectors
|
Based upon established
route reflector design rules,
describe the concept of hierarchial
route reflectors and their requirements |
Configuring and Monitoring
Route Reflectors
|
Given an existing
IBGP network, configure and
verify proper operation of route
reflectors to modify IBGGP split-horizon
rules |
Advanced
BGP Configuration
Limiting the Number of Prefixes
Received from a BGP Neighbor
|
Given a typical
BGP network, successfully configure
BGP to limit the number of prefixes
received from a neighbor |
AS-Path Prepending
|
Given a typical
service provider network with
connections to multiple autonomous
systems, use AS-Path prepending
to influence the return path
selected by the neighboring
autonomous systems |
BGP Peer Group
|
Given a typical
BGP network, use BGP peer groups
to share common configuration
parameters between multiple
BGP peers |
BGP Route Flap Dampening
|
Given a properly
configured BGP network, use
route flap dampening to minimize
the impact of unstable routes |
Scaling
IGP and BGP in Service Provider Networks
Common Routing Issues in Service
Provider Networks
|
Describe common
routing concerns of service
provider networks |
Optical Networking Designs
|
Describe the
scalability issues of using
OSPF and IS-IS as interior gateway
protocols in a service provider
network and list solutions for
each |
Scaling BGP in Service
Provider Networks
|
Describe common
scalability issues when using
BGP in a service provider network
and list solutions for each |
|
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