Designing Large-Scal IP Internetworks

Network Topology......Page 1
Addressing and Route Summarization......Page 2
Figure3-2 Route summarization example.......Page 3
Figure3-4 Routing metrics and route selection.......Page 4
Network Scalability......Page 5
Bandwidth......Page 6
Security......Page 7
Enhanced IGRP Addressing......Page 8
Enhanced IGRP Route Selection......Page 9
Enhanced IGRP Convergence......Page 10
Step2 Because there are no members of V1, there can be no feasible successors. Router A, therefo.........Page 11
Figure3-8 DUAL example (part 2): sending queries.......Page 12
Enhanced IGRP Network Scalability......Page 13
OSPF Internetwork Design Guidelines......Page 14
Backbone Considerations......Page 15
OSPF Addressing and Route Summarization......Page 16
Figure3-11 Assignment of NIC addresses example.......Page 17
Figure3-12 Areas and subnet masking.......Page 18
Route Summarization Techniques......Page 19
Backbone-to-Area Route Advertisement......Page 20
Tuning OSPF Metrics......Page 21
OSPF Convergence......Page 22
OSPF NSSA (Not-So-Stubby Area) Overview......Page 23
1 Router A receives RIP or EGRP routes for networks 10.10.0.0/16, 10.11.0.0/16, and 20.0.0.0/8.......Page 24
Step3 (Optional) Control the summarization or filtering during the translation. Figure3-15 show.........Page 25
OSPF On Demand Circuit......Page 26
5 When a host on either side needs to transfer data to another host at the remote site, the link .........Page 27
OSPF Over Non-Broadcast Networks......Page 28
3 When flooding out a non-broadcast interface (when either in NBMA or Point-to- MultiPoint mode) .........Page 29
BGP Operation......Page 31
Figure3-17 EBGP, IBGP, and multiple ASs.......Page 32
Figure3-18 Internal BGP example.......Page 33
Synchronization......Page 34
BGP and Route Maps......Page 35
Figure3-21 Route map example.......Page 36
Advertising Networks......Page 37
Redistributing Dynamic Routes......Page 38
Using the network Command......Page 39
BGP Attributes......Page 40
Origin Attribute......Page 41
Figure3-26 Next hop attribute.......Page 42
Next Hop Attribute and Nonbroadcast Media Access......Page 43
Weight Attribute......Page 44
Using an Access List to Set the Weight Attribute......Page 45
Local Preference Attribute......Page 46
Using the bgp default local-preference Command......Page 47
Multi-Exit Discriminator Attribute......Page 48
Figure3-31 MED example.......Page 49
Table3-2 Predefined Communities......Page 50
Understanding and Defining BGP Routing Policies......Page 51
Prefix Filtering......Page 52
AS_path Filtering......Page 53
Route Map Filtering......Page 54
Community Filtering......Page 55
Figure3-35 Community filtering.......Page 56
BGP Peer Groups......Page 57
Figure3-36 BGP peer groups.......Page 58
Figure3-37 Aggregation example.......Page 59
Confederations......Page 60
Figure3-38 Example of confederations.......Page 61
Route Reflectors......Page 62
Route Flap Dampening......Page 63
Summary......Page 64